Audi A4 / S4 / RS4 Audi A4 / S4

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Audi A4 / S4 / RS4 repairs by problem area

Engine (45%)

Transmission and Drivetrain (6%)

Brakes and Traction Control (6%)

Suspension and Steering (11%)

Electrical and Air Conditioning (20%)

Paint, Rust, Leaks, Rattles, and Trim (7%)

Other (4%)

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Need advice about specific Audi A4 / S4 problems?

Chart based on 4987 repairs.

Audi A4 / S4 / RS4 electrical repair cost distribution

$2500+ (5%)

$1000 - $2499 (14%)

$500 - $999 (20%)

$100 - $499 (44%)

< $100 (18%)

Chart based on 559 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2015 Audi A4 4dr Sedan

turbocharged 220hp 2.0L I4 6-speed manual AWD

15000 mi Satellite radio "linking" with no sound. Diagnosed internal failure of roof antenna. Antenna replaced. 

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2014 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

24000 mi MMI system was replaced due to troubles connecting to satellites during NAV use. There was a TSB out for the issue and the dealership replaced quickly and at no cost. 

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2013 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

24300 mi Seat memory ceased functioning. Re-programming corrected the problem. 
36000 mi GPS would fail to find satellites after parking in parking deck. Would sometimes take over 40 minutes for system to find satellites on a sunny day. Software updates applied but problem was most prevalent in hot humid summer months. 

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2013 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

8000 mi The passenger side airbag sensor would switch on and off with a passenger seated. The airbag could be turned on and off by slight shifts in body weight. 
10000 mi The actuator that controls the locking mechanism for the gas lid failed, causing a loud buzzing sound on every attempt to unlock the gas lid. The gas lid was unable to be opened until repairs were completed. 

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2013 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

16000 mi Bang and Olufsen speaker rattle. The mounting hardware was found to be broken. 
22300 mi Cap came off the back of the headlight and it injested water after driving through a puddle. It shorted out the headlight system and a suspension sensor. 
43700 mi Malfunctioning headlamp needed replacing. 
22000 mi Second Xenon Bulb failure; driver's side. 
11780 mi Adaptive Headlight Defective. 1st Visit to shop control module changed, failed again later in day. 

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2012 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

19840 mi The passenger's side headlight washer is intermittently getting stuck in the open position. Can be closed with a slight push. Problem is persisting for at least a year. 

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2012 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

38000 mi Dead Battery 

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2012 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

45500 mi Mmi knob broke off. Dealer replaced it. 

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2012 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

12000 mi Left Headlight burned out, Dealer said too early for this to have happened so checked entire system; found cause of problem and fixed. Checking the system is why in shop for 2 days. 

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2012 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

9000 mi alternator over charging, replaced voltage regulator for alternator 
25000 mi Compressor failed. Had to order new one from Germany. 
47000 mi Rear door, drivers side, upper speaker blown. 
11700 mi Cold air was blowing intermittently. Dealer replaced sensor. 
25600 mi faulty hood sensor, not resetting engine oil level measurement 
48000 mi Fixed loose ground connection for rear window defroster 
27000 mi IPod cable replaced after error message "Cannot read device" was received several times on device selection. 
33000 mi During evasive maneuvers, dash would light up and sport-diff would report failed (no sport-diff installed). Steering assist failed. Stop/Restart would clear the codes. Diagnosed to be a bad voltage regulator. 

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2012 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

44000 mi Brake wear sensor harness had a damaged wire. Replaced under warranty. 
12400 mi

C $200
Bluetooth connection to phone seems to cause intermittent total lack of sound 

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2011 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

5000 mi problem with software for backup cam; TSB exists, but no fix yet; dealer will notify when fix is found. 
11000 mi Malfunctioning backup camera, but only happens once every 2-4 weeks. 
29000 mi Backup camera failure. Camera unit and cables replaced. 
43000 mi Backup cam not working. Replaced cam and data cable. 
15000 mi Audio system had surge, then intermittently lost turn signal audio cue. Dealer found no faults on diagnostics or overnight. No recurrence. 
15000 mi Air conditioning had very bad "dirty socks" smell due to mold / midew growth during winter season. 
45000 mi

US $25
Musty, moldy smell from AC. Sprayed Lysol into AC air intake and replaced cabin AC filter. Seems to be a yearly springtime ritual. 

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2011 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable automatic AWD

6000 mi battery repaced, under warranty. Only 3 years old 
14000 mi Key fob replaced for inability to operate door locks. 
85000 mi Digital information screen in the instrument cluster is totally pixelated. Unreadable. Can turn it off though, so just not using for now. Self-dimming rear view mirror leaked fluid. No more dimming. Currently using a larger clamp on mirror (Broadway), so no hurry to fix leaky one. 
34000 mi

US $100
Center brake light module malfunction error. Needed replacement. 
35000 mi

US $309
Faulted power supply relay (J329). Car stopped running and would not start. Dealer took 3 hours to diagnose. 
18000 mi One of the doors on the heating/AC system flaps and makes a loud thud noise every time you break the car to a stop or accelerate. 
21300 mi HVAC control unit replaced, HVAC hose replaced. HVAC unit was causing noise. Over $5,000 of cost covered by Audi. car radio replaced as defective 
38000 mi Steering Wheel radio control worked on and off. Switch was replaced. 
14000 mi Back-up camera would occasionally malfunction but dealer ordered replacement camera and installed it under warranty. 
66000 mi

US $332
Center brake light replaced , and oil change . 
10000 mi Driver side heated seat not working. Dealer replaced the part. 
5000 mi replacement lock assembly has been installed and everything is working properly. 

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2011 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

5580 mi Blind spot warning system seems to be out of calibration. Dealer was unable to replicate problem. 
4000 mi CD player stopped working. Message said it was damaged. Dealer reset it (no real repair needed) and it works fine now. 
2700 mi Audio was lost due to an amp/signal booster failure. Part had to be ordered from Germany, no time frame was provided for part availability. Part was received and installed. Symptom presented itself (audio cut out) on the drive home. I suspect this isn't the last time I'll have to deal with the audio issue. 
700 mi Window regulator was not working properly. Item fixed. 
6000 mi Window regulator not working well. Window sometimes closes right after opening. 
6000 mi Window regulator came in. Problem fixed. Sensor indicated low tire pressure when tires were properly inflated. Problem tracked to software. Fixed by reflash. 

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2011 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

1000 mi RR Speaker rattled as if blown from delivery. Dealer ordered and replaced speaker and found manufacturing defect with Bang & Olufsen speaker manufactured with double cone. 
19000 mi MMI HDD (Hard Disk Drive) failed resulting in replacement of Audi information module. 
1000 mi Replaced front driver-side power window motor 
1000 mi One touch up feature on drivers side window not working properly. Trip in Dec '10 did not fix it, have to go back to dealer. 
5000 mi FM radio would not auto scan for stations. Radio unit was replaced with new one. Problem fixed.  
21000 mi One strip of LED lights in the right rear turn signal failed. Replaced entire rear turn signal assembly. Part replaced under warranty. 
1000 mi Rain sensor and auto light sensor malfunction. This ultimately led to inability to turn on Side Assist as well. Apparently both problems fixed with new sensor. 
4500 mi B&O sound system lost amp power. It lasted about 2 days then the amp power suddenly restored back to normalcy. The amp was replaced, actually for the 2cnd time as I had a radio problem (periodically no radio sound) a few months ago. 
8000 mi B&O sound system periodically malfunctions. It has done this 4 times since taking delivery. They still cannot figure it out. Have pursued Lemon Law. its ashame, it's a fun car, when it's working. 
54700 mi

US $800
the heating didn't work , unless i pressed the gas pedal 
37000 mi Hood latch open sensor failed, causing the engine to stop checking oil levels and erroneously report that the car was low on oil and shouldn't be driven. 
43000 mi Radio hopping between HD & regular signals 
44500 mi Tire Pressure Warning Lite activated stating all 4 tires were low. 
45000 mi Seat belt warning light on constantly despite all passengers wearing their seat belts. Replace faulty seat belt buckle. 
26000 mi

US $395
Reverse camera cable was bad so camera quit working. Cable needed replacement. 
44000 mi Replaced vent motor gear in dash ventilation flap. 
26000 mi Backup camera became dim, then intermittently stopped working. Wiring harness replaced. 
29300 mi Got low engine oil indicator. Dealer added 1L of oil, indicator remained. Diagnosis was a faulty hood contact switch. 
35000 mi

US $185
Car wouldn't start. Jumpstarted by AAA, took to dealership, did diagnosis, found no problems. Car wouldn't start again when they brought it to me, was jumpstarted again. Has started fine ever since. 

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2011 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

6820 mi Odometer and extra info screen between speed and tach flickering. Loose wiring suspected. Due for final repair in April 
7220 mi Entire electrical module for the info display cluster was fried and required complete replacement. 
50000 mi Bluetooth microphone replaced 

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2011 Audi A4 / S4

Engine not specified

1000 mi Driver's window doesn't go up and down automaticly. Switch ordered. 

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2010 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

36000 mi Rear light bulb blown. This was the second time a rear bulb has gone. Shop checked to see if there was any sort of systemic issue but found nothing. 
45000 mi Warning light that right rear bulb was out. Dealer inspected and said it was a false alarm. The false alarm recurred on April 4. 
69000 mi

US $258
Right rrear light fixture required replacement 
2000 mi -30 degrees outside the LED stop working, they fixed the wire, maybe metal contraction 
32700 mi The Navigation screen will intermittently flicker. Dealer told me that this was due to the light sensor, Audi is aware of the problem, and does not at this time have a fix. 
17700 mi Hood latch sensor faulty. Low oil light would not reset after adding oil. Sensor successfully replaced. 

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2010 Audi A4 4dr Wagon

turbocharged 170hp 2.0L I4 Diesel 6-speed manual AWD

9300 mi Both side turning signal lights in the mirrors (LEDs) replaced due to fault code and moisture inside. First symptoms appeared 1 month after delivery. Complained about bad paintwork, but was told that it is normal nowadays... 
11780 mi Blower started to give squeaking noice. Replaced under warranty. 
38440 mi Bang&Olufsen audio system was dead - no sound at all. Radio and bluetooth connection were working fine, but just with no sound. 
89280 mi

€250
Both side turning signals in mirrors replaced (again) due to moisture inside and causing corrosion in the LEDs. 

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2010 Audi A4 4dr Wagon

supercharged 333hp 3.0L V6 6-speed manual AWD

22320 mi Battery not woking. Replace battery 

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2010 Audi A4 4dr Sedan

turbocharged 240hp 3.0L V6 Diesel 7-speed automated manual AWD

39060 mi keyless entry sensor 

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2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 7-speed automated manual AWD

21080 mi Phone not Syncing contacts 
62000 mi

A $612
Driver side xenon bulb was turning off after being in for 5 minutes. Diagnosed as bulb needing replacement 

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2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

56000 mi

US $75
Center High Mounted Stop Light (CHMSL, the third, center brake light) had one, out of 10 or so, LED go out. I purchased a new CHMSL and replaced it myself. 
27500 mi Replaced side-mirror control switch since it was intermittently working. 
73000 mi

US $400
Failed alternator replaced battery at same time due to failing 
19500 mi Video card failure in MMI system (non Navigation unit) which required dealer to replace with a brand new radio. 1st attempt - wrong part ordered. 2nd attempt - US-spec radio installed which resulted in compatibility issues. Awaiting 3rd uni 
20460 mi Radio unit replaced and car reprogrammed. 
36580 mi individual LED in the rear tail light cluster burned out. 
43400 mi motor and fan bearing was loud. they have taken apart the passenger A/C fan and motor, said they replaced the motor but i dont think they replaced the fan, which was making the noise.  
5000 mi Rear power window stopped working properly around 4500 miles. The window couldn't fully closed. Instead, it will reverse as soon as it hits the top end of the window frame.  
4500 mi At 2,200 miles, static/interference noise from stereo with no sound for 5-15 seconds when starting car. Brought to dealer and new stereo was ordered for installation at a later date. Covered under warranty. 
6000 mi Re-checked all the connections, cable routings and antenna (no problems), wanted to try a new amp (none on hand) and tried to order a gateway module (on national backorder). They did two software updates (2023416/1 and 2023281/1). New radio installed from April 2010 trip. Static problem continued when starting car, although shorter in duration (few seconds). Returned to dealer in May 2010 for 5K service and further service on stereo. 
12000 mi Static problem continued (3 times in June) when starting car, although shorter in duration (few seconds). Front left tweeter enclosure vibrated when stereo was playing certain frequencies (example, phone call ring). Problem could not be replicated. Satellite radio reception seemed to be poorer, dropping signal when in past the signal would be OK (example, under small overpass). Reception was said to be similar to other cars. 
35000 mi Airbag malfunction warning and ABS warning displayed after approximately 5 minutes of driving. Repair was seatbelt replacement. 
5000 mi Airbag Sensor in passenger seat replaced as lighter individuals like my wife would not turn on sensor even though she should be over the threshold (verified in loaner A4). Parts replaced and functioning properly. Excellent service. 
14000 mi Bad radio that needs to be replaced. 
15000 mi Radio replaced. 
29000 mi Bad Satelite Radio Antenna. Needed to be replaced. 
44000 mi Headlight replaced during general maintenance. 
71000 mi

US $80
Both LED brake light clusters were replaced due to faults. 
72000 mi

US $80
Gas cap door has an electric lock that locks with the doors. This wasn't unlocking. They replaced the motor that retracts the locking pin on the door. 

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2010 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

8000 mi "side assist" was broken 
43000 mi Dead starter. 
56500 mi

US $600
AC coolant leak *and* recharge. 
46000 mi

US $360
Right rear LED light burned out 
72000 mi AC switch 
74000 mi

US $100
Replace door lock switch 
44000 mi LED tail lights: some elements went dark. Both sides were replaced. 
37000 mi Blower motor was making an unusual noise when using high fan speeds. 

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2010 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 7-speed automated manual AWD

24300 mi

US $1100
Battery low warning message when listening to radio with engine shut off. Dealer replaced radio module but did not solve problem, credited for this later. Root cause: bad voltage regulator and battery. 
3000 mi

US $40
adjust headlights 
17000 mi Door sensor.  
5500 mi air fan was making a faint squeeking sounds. They said it was mal-aligned. Replaced under warranty. 
26000 mi Rear window power sunshade stopped working. motor replaced. Installed improperly and broke 2 days after repair. part ordered again 
29000 mi rain sensor stopped working so no intermittent wipers. sensor replaced 
65000 mi Navigation system not recognizing satellite. Dealer can't establish connection with reboot. Recommends replacing nav system 
72000 mi

US $650
navigation antenna not communicating with MMI 
41000 mi Oil reading low even when not. Service bulletin had already been issued by Audi. Switch replaced. 
10000 mi The Convenience Key System Failed 
64000 mi Oil level warning would not reset after topping off oil. Replaced switch that senses hood closure under extended warranty. 
9000 mi Rear speaker suddenly went to full blast or mute. No other volumes possible. Reset multimedia system myself + repeatedly shut off car. Dealer checked for faults + software updates. None found. 
15000 mi Radio went to mute and would not recover. Automatically fixed itself overnight. Dealership checked for software update. None found. Could not duplicate problem. 
24000 mi Noticed Nav button was sticky after last permaplate. Tech did something to try to make it less sticky, but did not completely succeed. 

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2010 Audi A4 4dr Sedan

supercharged 333hp 3.0L V6 6-speed manual AWD

45000 mi TSB: Hood switch.  MMI reported wrong oil level. 
35000 mi Passenger inner taillight had an LED that was out. Passenger inner taillight had an LED that was not working. 
42000 mi Clutch release mechanism caused car to sometimes not start 
24380 mi

C $300
Door lock switch cover fell off. Had to replace entire switch assembly. 
48640 mi

C $50
Driver side lock sensor failed, replaced. Adaptive headlights have a mind of it's own, updated software and adjusted wiring. In both cases, the issues were not resolved, car back in on 2/26. 
49600 mi

C $50
Issues still with the driver side door lock sensor. Other sensors replaced. Behaviour with the adaptive headlight looked at again, still misbehaving when temperature is below freezing. 
52080 mi Adaptive headlight misbehaving, tech worked with resources in Germany, applied a firmware for the controllers. Okay so far, need to test when -20C next winter! 
58900 mi LED light for the km/h market in speedometer blinking. Cluster to be replaced under CPO. 
2480 mi B&O System (all sound) stopped working. Repaired by software/firmware update. 
31000 mi A/C intermittently blasting hot or cold. Right rear proximity sensor reading objects as close that were not. 
8860 mi Side assist (blind spot detection) needed to be replaced on passenger side. Installed replacement part for side assist. 
15500 mi Same issue as before - self levelling headlights not behaving. Audi reproduced problem and replaced on control system but problem returned couple of weeks later. Waiting on direction from Audi on next step. 

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2010 Audi A4 / S4

Engine not specified

2000 mi LED turn signal on right headlight burned out. Resulted in having to replace complete headlight assy. 

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2009 Audi A4 4dr Wagon

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

41000 mi Air bag light. Was previously repaired by a different dealer who said they replaced the airbag. Came on again after 3 months, current dealer replaced airbag again, still not fixed, then electronic airbag control module. Backordered. 
5580 mi ipod interface (AMI) is causing my ipod to lock up and requires a reset to continue working. There is apparently a firmware update that is currrently unavailable in Canada. Problem is intermittent and says "Device cannot be read" 
11780 mi problem replicated, ipod cable replaced. Worked for a few days and locked up again. Dealer is working on new solution 
34500 mi

US $18
PROBLEM WITH SEAT BELT SENSOR AND AIR BAGS 
Continuing electrical problem. Final determination was that the turn signal module was causing the audio amplifier to turn back on after the car was shut off. 
25000 mi Backup camera not working properly. Tightened cable. 
29000 mi Backup camera not working again two months later. Cable replaced. Fixed problem 
49500 mi A/C & heater blower motor controller was not working properly. Fan would come on only slightly or not at all. Replaced with new blower controller but it didn't work either. 2nd time around the new part worked. 
66000 mi

US $150
Lock sensor on exterior of door (for keyless entry/exit) was not working 
72000 mi

US $1500
Keyless door locking and unlocking not working Headlights not rotating up into position 
2500 mi Loose Fuel Sending unit connection, resulting in Fuel Level indicator showing EMPTY. Connection secured and problem resolved  
26000 mi

US $6
Replaced rear right brake light/turn signal 
9000 mi amplifier module short, right front speaker short. 
33000 mi Vehicle would not start. Comfort/convenience module faulty. R&R module, reprogram keys. 
51460 mi

C $85
Convenience key (keyless lock/unlock) fail. 
67580 mi

C $50
Headlight washer jets do not work. Failure to extend from bumper below headlight. 
72540 mi

C $50
Hood latch switch (electrical) failed. 
22000 mi Wipers totally stopped working. On second occassion, took to dealer. Was a wiring harness/or relay. Replaced. Also the driver's sun visor wouldn't say put, replaced. 
29000 mi Both electrical panels for lights in back of car failed and needed replacement. Panels lights include brake, turn signal, and parking 
60000 mi

US $280
A temperature/pressure sensor failed and had to be accessed for replacement. 
15160 mi Blown and short circuited high end (manufacturer installed) Bang and Olufsen amp for stereo system. Parts flown from NY to LA to Vancouver to Calgary. hadn't realized this sound system was so rare and expensive. Too bad for Audi and B&O. 
16120 mi Failure of MMI software after previous AMP replacement - software updated. 
53000 mi Stereo module in trunk would not turn off after turning off the car. It would drain the battery completely after a few days. Module replaced. 
39000 mi Rear hatch motor malfunctioned. Replaced under warranty. 

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2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 8-speed shiftable CVT FWD

20000 mi Cruise control would not engage or respond. The cruise control switch was replaced. 
7000 mi back right open/close window button comes loose and pops out 

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2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed shiftable automatic AWD

32000 mi Have been receiving Audi Side Assist system faulty messages constantly. Dealer updated the software per Audi TSB. 
37000 mi Side Assist System fault, button was replaced. 
24000 mi

US $95
AC threw a fault, but software update was required. Updated software for free. 
69000 mi

US $2830
Replace faulty blower motor and switch 
32300 mi MMI system drops bluetooth and radio mysteriously comes on by itself. This appears to be a common problem with the A4s that Audi wont fix without error codes. Resolved itself. 
46000 mi

US $3000
Air conditioner enclosure leaking - water pooled on floor. Replaced the enclosure and the fan control module. 
14000 mi Proximity sensor for keyless entry failed for second time in a couple of months. Both rear door handles had to be replaced. That repair caused the inner door handle to fail shortly after picking the car up. Now need to return for that repair! 
32840 mi Car displayed "Ignition lock defective" message on cold mornings. 
30000 mi TPMS sensor on one wheel bad. 
8000 mi rt side rear view mirror bulb assembly was faulty 
33000 mi Passenger side seatbelt latch sensor failed.It tripped multiple dash warning lamps. 
66000 mi

US $400
Ac not working, they replaced high pressure vavle. Did not fix the problem and asked for $250 more for additional diagnosis. Refused and I am driving a car without ac. Will not take it back to dealer. 
8680 mi Side assist warning of cars in blind spot that were not there ! 
42000 mi Center rear brake light was intermittently giving a signal that it was burnt out but wasn't. The dealer replaced the rear center brake light assembly.  
42000 mi Navigation system controls became erratic. Dealer wanted $125 just to evaluate the problem, with the likely repair hundreds of dollars more. Outraged, I decided to buy a portable GPS system instead. 
52000 mi

US $1227
Replaced water pump. 
52000 mi

US $85
Cruise control wouldn't work. Dealer replaced steering column stalk. Now works as it should. Fuel filler door servo intermittant. Replaced servo under CPO. 
83700 mi

US $450
Front passenger door wouldn't lock. Diagnosed as needing a new actuator. Actuator replaced. 
23000 mi Door locks failed and were repaired 
8060 mi Fuel gauge was reading empty after filling up the gas tank to full 
43000 mi Center rear break light failed 
7000 mi Static in rear speaker, new part ordered and replaced by dealer under warranty. 
58000 mi

US $350
Replaced battery 
32000 mi Side assist malfunction. 
41500 mi Battery died again, dealership replaced headlights, battery, instrument cluster and a bunch of other things. 
24000 mi door locks dont function with audi advanced key 
26000 mi Door handles replaced 
63000 mi passenger outside mirror not heating up with defrost on 
23000 mi Radio sound issues. Would cut in and out and was not clear. Bang and Olufsen system as well. Amp was replaced, but did not fix the problem. Air conditioning fan whistles. Less frequent, but still happens 
28000 mi Sound cutting in and out. Was told that it is the DSP system in the Bang and Olufsen sound system. New antenna installed. Problem is only slightly better. 
36000 mi My air conditioning was whistling. Had been repaired before and had come back again. Dealer could not replicate so no repair was completed. 
2000 mi Comfort access door handle sensor failure Comfort access - door sensor replaced 
30000 mi Replaced drivers door handle due to internal short for keyless access. 
6000 mi The electronic sensor in the door handle which activates when the key fob is near to open the door quit accepting signals. The whole door handle has to be replaced so part was ordered, has to be painted, and then installed on car at another date. 
6000 mi Sensor in door handle to unlock the doors as you approach with the key fob. 
30000 mi Keyless proximity sensor on the door handle failed for the second time-but on a different handle but if one fails they all don't work. 
72000 mi

US $1000
Battery was in excess of 5 years old and was starting to lose its charge 
55000 mi

US $222
Battery died 
68000 mi

US $350
Needed to replace the right front headlight assembly. 

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2009 Audi A4 4dr Sedan

turbocharged 211hp 2.0L I4 6-speed manual AWD

97000 mi

US $2500
Alternator burned out. 
68000 mi

US $85
Replaced gas tank cover actuator. 
15000 mi HVAC smells like mold or mildew when the AC button is active. Dealer replaced filter as part of 15k service and hoped this would fix. Offered to deodorize the system but not under warranty. Disappointing as this has happened since ~ 5k miles. B&O Speakers in the front doors rattle when listening to Sirius talk radio, particularly male voices. Easy to duplicate but dealer claimed they were unable to do so. I'll revisit them in person to demonstrate the issue. 
51460 mi

A $180
Driver's door sensor and fuel cover sensors were replaced. Keyless entry system had stopped working properly. 
52700 mi

A $200
Battery died and replaced 
95000 mi

US $400
right reat door sensor for convenience locking system bad, which caused rest of sensors not to work. 
68200 mi

C $400
rear headlight level sensor broke. needs to be replaced. 

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2009 Audi A4 4dr Sedan

turbocharged 143hp 2.0L I4 Diesel 6-speed manual FWD

6000 mi Whilst being driven, car electrics cut out, engine/power steering kept running, but airbag/ABS/Engine management light came on, rest of display went blank, indicators etc electrics failed. Audi: faulty alternator & gear position switch 

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2009 Audi A4 4dr Sedan

265-horsepower 3.2L V6 6-speed shiftable automatic AWD

47000 mi passenger seat power adjustment was not working. Dealer replaced power seat motor under warranty. 
14260 mi Fuel door release servo was intermittent from convenience locking with keyless system; worked always with key fob unlock. Slight inconvenience. 
15880 mi One keyless door sensor would not lock the car. 
22000 mi Driver's door window control for driver's door window would not work for the full roll down feature and became very hard to press. Switch replacement fixed it. 
20460 mi Complete failure of battery, transmission shifting issues, navigation systems freezing. None were solved. In fact, a software update was performed that caused some significant cold engine idle issues when first started. 
22320 mi Car sold partly because battery kept totally discharging after three days. 
14880 mi Air bag sensor is on. faulty switch in passenger seat belt clasp 
47940 mi

C $250
Warning indicator lights randomly turning on 

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2009 Audi A4 2dr Convertible

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

48000 mi

US $650
1. problem with tires after 16,000 miles - loud noise and vibration. Car had new tires and aligment in January. Original dealer would not help. 2. NAV DVD would not eject - Original dealer would not help. Had to take car to new dealer 
78500 mi

US $745
Cruise control stopped working. Replaced cruise switch. 
79000 mi Cruise control stopped working 1 week after switch was replaced. Called dealer and they will charge for second repair even though they repaired 1 week prior for $500. Decided not to fix at this time did not want to spend more $ 
79300 mi

US $1300
Installed switch and control unit for cruise control 
88700 mi

US $209
Windshield washer pump replaced 

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2009 Audi A4 / S4

turbocharged 4-cylinder diesel manual 2WD

2000 mi Advance key option allows the car to be locked and unlocked keylessly by sensors in the door handles. A sensor in one handle showed up as faulty, causing an intermittent problem whereby the sensors do not work correctly. Ordered part. Part installed, but problem quickly returned. Made another appointment to repeat diagnosis. 
2000 mi Overall, 2 faulty door sensors causing problems with the advanced keyless entry system which were diagnosed on two separate visits. Now everything seems to be working correctly. 
9700 mi Car reporting low battery after only 1 year and even though car is used regularly. Garage said no problems with battery or alternator, told they had fully charged the battery. Two days after previous visit after being told battery had been fully charged and no problem could be found, car reporting low battery again. Took back to dealer who updated software and also ordered a replacement battery monitor/sensor. Battery monitor/sensor arrived and replaced. Advanced keyless entry system not working for the 3rd time (2 original door sensors had already been replaced). 1 of the remaining two original sensor was now faulty, sensor replaced. 

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2008 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

52500 mi side mirror auto adjustment going haywire. manual adjust worked fine. simply replaced elec control module in door. covered under warranty. zero other issues in 50,000 miles! 

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2008 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

21000 mi Replaced brake light 
35000 mi lighter inoperative 

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2008 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

32860 mi

€50
Cruise control stopped working - the clutch pedal sensor was replaced. 

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2008 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

25000 mi third brake light went out=== dealer replaced whole part 

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2008 Audi RS4 4dr Sedan

420-horsepower 4.2L V8 6-speed manual AWD

4000 mi The TPMS didn't seem to be functioning properly, but the dealer checks found that it was. 

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2008 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

39000 mi

US $85
Recirculate flap motor stopped working so that recirculate would not work. Had this replaced at the dealership under the CPO warranty with an $85 copay. 
63240 mi

C $1000
headlight 
33000 mi

US $90
Intermittent failure of driver's side turn indicator bulb. If hit fender with hand, bulb would work. Dealer said bulb failure not a bad connection. I disputed this, we agreed to split cost. Must remove front fender assembly to gain access to the bulb. 
39000 mi

US $5
Replaced failed driver side rear turn signal light bulb 

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2008 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

31000 mi AC blowing extreme hot air even when set below 70 degrees. some part in center of dash had to be replaced that regulates the temp. 
32820 mi Airbag light on - problem with middle rear seat belt buckle Airbag light on; middle rear seat bel buckle replaced 

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2008 Audi A4 4dr Wagon

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

25640 mi

C $400
burned xenon headlight 

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2008 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

20000 mi motor that raises driver seat up and down broke. three days in shop as service claimed two separate motors needed to be replaced to remedy, which needed to be ordered. 
48000 mi Drivers side window control inop. Replaced. 
41000 mi Xenon headlamp went out...have to dismantle the headlamp to replace warranty on the zenon lights was extended to include. 
140120 mi Left power windows, right power locks not working. Open on front right door, found water on circuit board. Dried and cleaned this with alcohol (spiritus), and windows started working, but locks still not. 
1700 mi The car frequently displays the message that the "Centre Rear Light" is out in the instrument cluster. The dealer claims that they have not been able to replicate the problem. 
2000 mi Audi MMI screen is beginning to fail - has a vertical line at the top where the pixels are starting to go bad. Dealer said it was not bad enough yet to warrant replacement per Audi factory rep, which I disagreed with. 
2000 mi TPMS system is unreliable in very hot Arizona weather, and even if the tires are properly inflated, We often get a TPMS warning on the dash during the summer. Dealer says "that's just how it is." 
86300 mi

US $222
Replaced battery 
90000 mi

US $400
Baffle motor broken and stuck 
105500 mi

US $1305
Replace auxiliary fan assemblies (right and left) as well as fan control unit 
108000 mi

US $650
Air bag light again came on, had to replace airbag clockspring 

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2008 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

1000 mi Air Bag light. Part ordered. Problem repaired, but minor interior damage was caused. 
61500 mi The HID headlights were randomly flashing when the car was off and parked. The electronic control module was replaced. 
66000 mi One of the two horns stopped working, it was replaced. 

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2008 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual FWD

36000 mi Power folding passenger mirror does not always function. Dealer ordered parts to repair under warranty. 
38000 mi Mirror motor replaced under warranty Passenger side air vent not enough air flow. Flap replaced under warranty. 
100300 mi

US $2000
AC Compressor Failure 

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2008 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual AWD

32860 mi On warranty, the dealer change seat belt passenger switch and front disk brakes wear sensors. 
61000 mi Clutch position sensor failure caused broken cruise control. 
64000 mi

US $180
Battery fell off a cliff. Not just performed poorly in the colder weather -- it just stopped holding a charge. 
15500 mi rear seat belt and fuel latch 
86000 mi

US $10
Taillight out for 2nd time in 2 years. Replaced myself in about 10 min. Dealership cost >$100? 
15000 mi

US $250
window regulator. when i utilized the automatic window close, the window would close then come down a quarter of the way. 
60000 mi

US $200
Factory battery failed, was replaced at dealer 
25000 mi iPod adapter stopped working... replaced under warranty 

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2008 Audi A4 4dr Sedan

turbocharged 160hp 1.8L I4 8-speed shiftable CVT FWD

54560 mi

$4000
Airbag warning sensor on dashboard lighted together with Airbag Off button near ventilation. 
27280 mi Right xenon bulb turns off after few seconds. First visit, the car stayed for a day to investigate problem. Part ordered and took about 3-4 days for delivery. Car at dealer for another day for right headlight replacement. 
50840 mi Left Xenon Headlight bulb suddenly turned off. Identified as broken only after removing front bumper, so car had to stay at the workshop. Bulb ordered from Dubai. Car remained at dealer's for a whole week. 

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2008 Audi A4 4dr Sedan

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

29000 mi Motor for drivers side window needed to be replaced. 
83700 mi

C $400
Hard starting and cel on 
96100 mi

C $600
Brake switch failure 
10049 mi Air conditioning not cold. System evacuated and freon recharded. 

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2008 Audi A4 4dr Sedan

255-horsepower 3.1L V6 6-speed manual AWD

14880 mi Defect in iPod interface. 

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2008 Audi A4 2dr Convertible

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

33400 mi Convertible sop stopped working again, dealer replaced the hydraulic motor(s) that opens the trunk access where the top is stored. 

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2008 Audi A4 2dr Convertible

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

59000 mi

US $85
Main flap position servo motor failed. Unable to direct heat to floor. Repaired under CPO warranty. $85 deductible 

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2007 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

32500 mi Auto-open window settings did not function properly 

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2007 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

34000 mi Satellite Radio receiver stopped working and was replaced. 
42000 mi window switch was replaced 

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2007 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

53940 mi

C $80
Fail to start 
67580 mi

C $2000
Replaced both front headlights. (HID) 
78120 mi

C $90
Bluetooth module died, also damaged radio and nav which caused parasitic drain on battery. Dealer disconnected Bluetooth and audio/nav. Said replacement would be $3,900. 
40000 mi Home link system stopped working. The Vizor was replaced along with the electronics in the vizor itself. 
66000 mi

US $50
Cruise control stalk stopped working. Replaced with a used stalk. 

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2007 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

63000 mi

US $182
Replace reverse light switch. Noticed a problem with 'Rear Parktronic' & 'Reverse lights' not working. Checked fuses, bulbs & tailights, and they were working. It was the switch that failed. 
16000 mi The passenger side rear view mirror does not return from curb view after taking the transmission out of reverse. The RNS-E satellite navigation systems sometimes fails to read the map DVD after the unit has been operating for some time and the car is turned off and restarted. Automatic windshield wiper control occasionally starts wiper when the weather and windshield are dry. When using auto close the passenger front window closes and then re-opens partially. 
25000 mi Cruise control failed to work. Clutch sensor replaced. Heating system was either too hot or too cold. Excessive noise from inside dashboard when heat is on. HVAC dampers and motors inside dashboard. 
64000 mi Clutch switch for cruise control 
66000 mi

US $85
Headlight surround for DRL burned out. 

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2007 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

62000 mi

US $1200
Airbag sensor failure. 
74700 mi

US $450
Driver's door lock not always unlocking with remote. 
78700 mi

US $327
Key fob quit working. Ordered new one a reprogrammed all keys. 

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2007 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed manual AWD

42000 mi

US $476
Rear passenger seat belt sensor was faulty and triggering the air bag warning light on the dash. Replaced the rear passenger seat belt sensor. Negotiations with Audi dealership reduced the cost by 50% as a goodwill case. 
44000 mi

US $150
Battery was slowly dying. 

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2007 Audi RS4 4dr Sedan

420-horsepower 4.2L V8 6-speed manual AWD

110700 mi

US $175
Replaced Xenon headlight lamp 
95181 mi

C $140
Replaced washer jet - driver's side. 
85000 mi

US $1000
Bluetooth module was draining battery and had to be replaced 
50000 mi Faulty tire pressure sensor - replaced 

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2007 Audi RS4 2dr Convertible

420-horsepower 4.2L V8 6-speed manual AWD

39680 mi

C $100
Recharge of refrigerant. leak check...non found 
42160 mi

C $200
a/c empty, no leaks found. Re charged still not working. dealer determined compressor and dryer needed replacement. Over $1700.00 in parts alone required. Elected not to repair it. 

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2007 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

37820 mi passenger side headlight washer extend/retract motor needs replacing. washer will not retract when used. parts not in stock, will be replaced on next trip to dealer. 
45880 mi Compass LCD in rear view mirror cracked in very cold weather (-35C). New RVM ordered to be replaced under warranty on next visit. Driver side headlight washer does not fully retract. to be replaced at next visit to dealer under warranty. Fuel gauge would not read full when filled. Dealer recalibrated sensor. 
52680 mi

C $100
Cracked LCD in rear-view mirror was replaced under warranty. 
78740 mi

C $35
Windshield washer pump started leaking. Removed to verify source of leak, then removed again to replace when pump arrived in the mail. Apparently a relatively common problem. Ordered from ecs tuning. 
22000 mi Driver seat belt sensor failed so airbag light on. Part had to be ordered so took two days to fix. Offered rental car as replacement. 
65300 mi

US $60
Rear speaker amplifier (Harmon Kardon) failed; replaced with used component 
69000 mi

US $45
Rear speaker amplifier (Harmon Kardon) failed again; replaced with used component 

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2007 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

55000 mi Bluetooth unit failed Audi replaced at no charge 
30000 mi  
34000 mi Auto unlock when key removed intermittently not working. Hatch not unlocking when door unlock button pressed, intermittently. Drivers window periodically won't stay rolled up. 
60672 mi

US $220
diagnose non-functioning tail light. Determined to be failed circuit board and connector Driver rear turn signal light not working due to broken connector on tail light circuit board. New board, connectors, and wiring replaced 
78120 mi Replaced burnt out passenger side headlamp. 
85560 mi

C $130
Backup lights would not shut off. Replaced switch. 
51000 mi

US $210
The entire rear reverse light assembly was removed and replaced. 

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2007 Audi A4 4dr Wagon

255-horsepower 3.1L V6 6-speed manual AWD

104000 mi

US $700
Leak at filter/receiver. 

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2007 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

38000 mi The childproof lock on the windows had short circuited and needed to be replaced. 

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2007 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

49000 mi Rear side airbag, seatbelt tensioners. 
87000 mi radio draining the battery.  
5500 mi 5,000 mile service (free); attempt to fix must smell from HVAC (warranty). HVAC fix worked for a couple of weeks. Still getting must smell. 
15000 mi Musty smell from HVAC. Dealer said that replacing cabin filter (part of 15k service) would fix. It didn't. 
7000 mi Bluetooth feature stopped working Bluetooth module replaced 

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2007 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual AWD

34720 mi

C $150
A new battery was required. 
5000 mi 5k Service Replace Odometer (under warranty 
35000 mi Went in for 35,000 service. In addition told them passenger light vibrates. Was told the bulb needed to be replaced, however bulb was fine. Owner discovered there is a TSB about the issue. Dealer said they would look at it next visit. 
55000 mi

US $85
relays had to be replaced 
97208 mi

US $216
No Cruise Control - Dealer replaced Clutch Vacuum Vent Valve Switch. 

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2007 Audi A4 4dr Sedan

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

22000 mi The air bag sensor was sending a bad signal which caused the flashers to go on at random times. The air bag sensor was replaced and the problem is now solved. 
132000 mi

US $1733
Complete A/C compressor failure. 
7000 mi The Nav unit CD Drive would not eject. 
46000 mi

US $152
AC Freon Recharge. 
20000 mi Problem 1 of 2: Memory seats not working; switch broken. Problem 2 of 2: CD changer did not work. Switch replaced CD changer replaced 
22000 mi Power window switch on driver door controlling rear passenger window would not "express down." 
28000 mi Received dipped left headlight warning light. Drivers' side light flickered, then went out. Experienced it for a total of 4 days but has yet to repeat. Told that headlamps are not covered under CPO warranty. Decide not to fix. 
47000 mi Fan making whirring noise from passenger side during entire trips periodically. Told could not replicate except during start up. 
49000 mi Fan making whirring noise from passenger side during entire trips periodically. Blower fan replaced. 

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2007 Audi A4 4-door

8-cylinder manual AWD

10000 mi Sirius module went bad. Needed to be replaced. 

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2007 Audi A4 2dr Convertible

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

22000 mi Internal short in center brake light LED bar caused intermittent brake light failure 
35000 mi CD player would skip, displayed "SERVICE" on the screen, new unit ordered 
36000 mi Radio was replaced to fix CD player functionality 
38000 mi Pixels in new radio aren't fully illuminated. Checked out at dealership, and new radio ordered. 
39000 mi Radio with bad pixels replaced with new one 
36000 mi

US $60
Just a tail light. My mechanic did do a search for recalls and found one for a minor engine bug. Will have it replaced on next regular maintenance visit. 
55000 mi Fuse light keeps coming on for brake light but brake light appears to be working. 

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2007 Audi A4 2dr Convertible

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

35000 mi

US $500
passenger power seat control burned up 
55000 mi heated seats went out 
35000 mi

US $11
failed turn signal, wires tightened and bulb replaced. 
38300 mi rear window would not go down all the way, unplugged the window motor, plugged back in, problem resolved 
88000 mi

US $200
Airbag light was on. Dealership redid connection in passenger seatbelt. Airbag light is back on already. 

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2006.5 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

71480 mi

C $400
Window stopped going up and down 

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2006.5 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

73000 mi One of the switches controlling Cruise Control broke. It was fixed while at the body shop, getting repaired after a collision with a deer. The insurance company picked up the tab. I paid the deductible only. 
120000 mi

US $400
Dealer replaced the clutch switch. 
131500 mi

US $70
Right side front window mechanism (regulator) stopped functioning. 

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2006 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

69000 mi

US $190
Driver door window regulator failed, could not close window. Dealership said it would take all day to fix, bought part and did it myself. 
46796 mi

US $175
front turn signal wasn't working. Had socket and bulb replaced. 
47000 mi

US $175
front turn signal was out. Bulb and socket replaced. 
105000 mi two driving lights were burned out, took over ten minutes window lock broke 
18000 mi Also, noted problem with door lock button, shop says "could not duplicate," no action taken. 

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2006 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

121000 mi

US $250
Ballast needed to be replaced 
83000 mi

US $100
Drivers side Driving Light Bulb harness was shorting out due to wear on the wiring sheath. 
95000 mi

US $440
Replaced passenger window regulator 
105000 mi

US $85
HID headlights go bad far too often. Replace right dipping light. Most of the work is getting the airbox out of the way. 
86300 mi

US $155
Low on freon. Dealer added dye will be back in August to check for leaks. 
75000 mi

US $125
This model has a history of headlight flickering and headlight outages. Sometimes headlight bulb replacement fixes it, sometimes the ballast or other electrical parts need to be replaced. In this case, replacing the bulbs fixed it for now. 
54700 mi

US $160
CD Changer failed. Had to be replaced. 

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2006 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

93000 mi

US $265
Ground strap was coming apart from starter and starter had to be replaced 
56000 mi

US $100
Starter intermittently stopped working. Replaced under copo warranty with $100 deducatable 

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2006 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed manual AWD

80000 mi

US $2000
replace radio and gps system 
89000 mi

US $950
cruise control not working 

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2006 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

60000 mi

US $120
Wiring harness for turn signal needed to be replaced 
64000 mi

US $85
noise from HVAC system, replaced vent flapper motor, covered by a TSB 
75000 mi

US $85
A/C does not adequately cool vehicle.  Navigation / Head unit Cd player inoperative, replaced entire unit. Xenon headlamps flicker randomly, shut off occasionally.  
77000 mi

US $85
Headlight failure not fixed - problem is found on ALL internet forums as well as NHTSA website, but dealer claimed, for the fourth time, they could not duplicate. 
78000 mi Sold with headlight problem not resolved. 

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2006 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

136000 mi Heating element burned through the leather seat on driver's side. Report performed by dealer for Audi. Heated seat now disconnected. 
141000 mi left rear turn signal usually doesn't work. Wiring issue identified. Will cost approximately $700 to fix. 
144000 mi Electrical issues with heated seat and turn signal never fixed. 
69000 mi

US $180
Short in audio head unit drained battery. Dealer diagnosed bad MMI unit (radio/navigation) and gave 3,400 estimate to replace. I declined and asked them to disconnect unit. Went to independent car stereo store for replacement. 
40000 mi Headlight was flickering and going out. Dealership replaced bulb because of TSB. 
124620 mi

C $90
Replaced HID Bulb and 2 small lamp sockets 
168020 mi

C $389
Passenger Window Regulator 

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2006 Audi A4 4dr Wagon

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

42000 mi Headlight has intermittent failure (adaptive HID lights). Occasionally turns itself off, but relights when I turn lights off and on again. Audi shop proposed to replace unrelated part so I declined repair. 
56000 mi

US $240
Replaced HID headlamp due to intermittent malfunction. Problem with ignitor, which is integral with bulb for this design.  
64000 mi

US $500
xenon headlight bulb exchange due to intermittent failure (prob. related to voltage regulating component integral with bulb). 
41000 mi Passenger light ballast(?) replaced 

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2006 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

80 mi Replace defective A/C condensor 
22000 mi XM Radio quit working. Replace XM Radio module. 
23000 mi XM Radio Module replaced 
58000 mi

US $1200
Replaced battery 
44640 mi Left front speaker was replaced under warranty 
52000 mi

US $800
Control arm cracked. 
86000 mi

US $25
Drivers side master switch cluster malfunction. Causing child window lock to be engaged all the time. Replaced with chinese knockoff for $10. Broke several retainer clips when removing door card. Replaced with several knockoff clips. 
60000 mi fuel level sensor not reading correct fuel level 

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2006 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

30000 mi

US $250
condensation fails to drain well when vehicle parked on grade leading to "wet dog" smell from vents 
40750 mi

US $125
Foglight light replacement. Purchased part online and dealer fix for under $75. If dealer purchased the part and fix the foglight it would cost $200.  
56000 mi Headlight replacement, new LED bulb. 
69000 mi

US $250
Window regulator driver side front window broke. 
105000 mi

US $830
Dead battery. Would not start. Dead starter motor. 
53320 mi

C $2900
Locking system replaced.  new rear brakelights 
67580 mi

C $1300
Alternator failed - repair required replacement alternator and battery 
89900 mi

C $700
Airbag sensor replaced. After this trip both sensors failed again. 
93000 mi

C $900
airbag sensor 
83700 mi

C $200
HID headlight flickering in and out. New ballast ordered and replaced inside the headlight. 
149000 mi

US $200
Satellite radio receiver replaced 
46000 mi Dipped headlight evaluation, no repair done. 
136400 mi

$600
Starter failed after replacing a new battery 
35000 mi Bad window regulator - driver front. Standard VW/Audi problem. Fixed under warranty. Passenger front started going, 2 weeks later, in shop now. 
36000 mi

US $189
Regulator for Passenger side front window. 
45000 mi Front Driver's side window regulator re-fixed less than 12 months after original repair. Passenger Front Window Regulator. Was reflashed (I was told replaced) 12 months ago, but started clicking again. Customer relations helping to see who will pay for this repair. 
48000 mi

US $300
Revisit after Audi of America offered to pay 40% of the cost of replacing front p-side window reg. Fixed, all done. 
70700 mi

US $1200
A/C wasn't developing pressure - compressor replaced. Problem solved. 
109300 mi

US $260
Battery died 

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2006 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual FWD

33000 mi Window regulator on drivers door went bad. 
62000 mi

US $250
Read seat passenger loosened driver's side airbag wires by sliding feet underneath the seat. 
79360 mi

C $221
Replaced window regulator 

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2006 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual AWD

32000 mi Rear view mirror fuse got stretched and wasn't making contact anymore.  
48980 mi Front passenger seat sensor Intake flap motor 
67000 mi

US $400
broken door open signal wire 
48000 mi Center-right vent does not blow sufficient air like the other vents. 
34500 mi Rear window safety switch broken. This prevents rear seat passengers from operating the windows. 
78740 mi

€125
Battery was dead and at the end if it's lifecycle 
81000 mi

€250
Xenon lightbulb faillure 
43000 mi Flickering headlights, described under TSB 
32000 mi Passenger window would roll down after driver rolled window up. 
51500 mi

US $385
Window regulator replaced on drivers door. Window would no longer roll up or down.  
53000 mi

US $50
rear left brake light 
87500 mi

US $313
Wipers not switching on. Tech traced issue to short in relay for wipers. Replaced relay. 
62000 mi

US $75
HID headlamp shutting off and reporting as "dipped headlight" in DIS. HID element was replaced. Required removal of front bumper. 
90000 mi

US $450
Error with headlamp AFL reported. Failed component in ballast identified as culprit. Ballast replaced 
98000 mi

US $54
The driver's window control switch stopped operating the rear windows and had to be replaced. 
38000 mi Right headlight intermittent failure. Bulb replaced on second visit. Car was purchased as CPO and the problem was dicovered on the first day so the dealer covered the problem. 

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2006 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

34720 mi Xenon lights blinking 

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2006 Audi A4 4dr Sedan

255-horsepower 3.1L V6 7-speed shiftable CVT FWD

89300 mi

US $250
Power window failure driver side. Update: passenger side failed later in the month. Both wedged in up position for now. 

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2006 Audi A4 4dr Sedan

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

133000 mi

US $100
AC not cooling. Found leaky component, replaced and recharged system. right low beam HID headlight would occasionally flicker. Replaced bulb. 
185960 mi

C $65
Replaced HID headlights, it's a pain in the a## 
216540 mi

C $50
Replace HID headlights... remove front bumper cover, remove headlight assemblies, install new headlights, reinstall all parts. 

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2006 Audi A4 4dr Sedan

255-horsepower 3.1L V6 6-speed manual AWD

90000 mi Intermittant headlight flickering 
90500 mi Intermittent flickering headlight issue repaired by dealer as 'customer curtesy' after many, many complaints. 
62000 mi

US $50
Audio/Nav system would not recognize CD player which rendered it non-functional. Fix was to remove and replace the same unit. 

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2006 Audi A4 2dr Convertible

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

53300 mi Recvd check engine code that 3rd tail light was not operational. 

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2005.5 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

71000 mi

US $25
Bad bulb holder for DRL was causing excessive heat burning out bulbs in less than a day. Required replacement of bulb holder. 

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2005.5 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

38300 mi

US $1500
Window regulator 
91000 mi

US $1460
Replaced driver side window regulator. Window would not move. 
37800 mi Dead battery replaced under warranty 

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2005.5 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

65000 mi

US $500
65k service, front pass window regulator brake bulb blown need to remove trunk carpet to replace, drivers driving light intermittent, pass xenon headlight intermittent 
74300 mi

US $1100
Starter motor failed 
77000 mi

US $772
Driver side window stopped rolling up or down. 
85000 mi

US $554
Battery went down. 
85700 mi

US $1560
Headlights dipped on almost every turn. Needed to replace the entire headlight assembly. 
88500 mi

US $210
Driver's window stopped working. Advised dealer that I thought it was a short. Dealer quoted $1000 for replacing Motor, actuator, and switch. Decided not to do the repair. My further investigation revealed broken wires in the door jamb. 
89000 mi

US $180
Ordered a new wiring harness (OEM) for driver's door, and installed it myself. Everything is now working properly. 
48700 mi

US $100
Some dash and external lights stay on even when ignition is off and key is removed. This drains the battery overnight. 
36000 mi

US $975
Head lights flicker on and off while driving. Both head lights went out at night while driving and had to pull over. Turning the headlight switch to the off position and back on seemed to fix the problem temporarily. 

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2005.5 Audi A4

Engine not specified

96300 mi

US $400
Starter failed, and had to be replaced. 
23000 mi Dome light out. Replaced. 

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2005.5 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

43000 mi

£600
Alternator faulty. Replacement also faulty, no more alternators in the UK, so car at Audi garage for 6 days. 

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2005.5 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

62000 mi Low beam headlight intermittently goes out. Problem could not be replicated or solved by dealer. 
77000 mi

US $600
Side airbag sensor malfunction - replaced 
93700 mi Left headlight flickers, goes out. 
105000 mi

US $1075
Went in for alignment and oil change - ended up getting alignment, 4 new tires, front headlight (small bulb) and wash 
147000 mi Adaptive headlights starting to flicker. 

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2005.5 Audi A4 4dr Wagon

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

55500 mi

US $895
HID control unit needed to be replaced. 
65500 mi

US $140
Brake lights would come on and stay on. Brake light switch replaced. 
67000 mi

US $600
Power window regulator failed 
79000 mi

US $350
Headlight bulb replaced 

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2005.5 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 7-speed shiftable CVT FWD

35000 mi Air Compressor was replaced under warranty. AC would not cool when car was started but would be ice cold once underway. (after higher than idle revs for a bit) 
48000 mi

US $375
window regulator replaced; pricy! car 2 weeks out of warranty... dealer gave 10% discount 
61000 mi Stop Light Turns ON after parking overnight, on lower temperatures. 

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2005.5 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

61000 mi

US $50
Brake Light Switch 
72000 mi

US $130
Driver Front Window Regulator 
149000 mi On Board computer shows error for tail lamp failure when no bulb failure exists; Headlamp bulb assy. broken from retaining pcs causing headlamp to move freely; 
5000 mi Keyless entry stopped working on both key fobs. Dealer replaced keys, was a known problem. 
10000 mi Sound system did not work in very cold weather - would turn on but no sound came out. Dealer replaced amplifier under warranty. 
82000 mi Passenger headlight out. 
110000 mi

US $11
Driver's side headlight out 
156300 mi

US $2100
Both front power window regulators broken 
82000 mi

US $112
Repeated tail light failure. Replaced Bulb Holder (8E5 945 257 C) - $59.50 
89000 mi

US $300
Xenon bulbs replaced to resolve intermittent headlight fault (left and right) 

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2005.5 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual FWD

130000 mi

US $50
Window regulator was broken 
63000 mi

US $400
Window regulator was shot. 
118500 mi

US $75
Window regulator need to be replaced 

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2005.5 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual AWD

72000 mi

US $200
Trunk latch is electronic - actuator & latch components were replaced. 
23000 mi license plate light socket short. 
96000 mi

US $1600
Right passenger door lock actuator had to be replaced, $688. 
45000 mi Rear high mount stop light works sometimes, sometimes it does not. Seat belt warning chime beeps even when seatbelt is buckled. 
47000 mi Drivers side window would not roll up. 
41000 mi radio replaced under warranty (flaking on plastic knobs) 
91000 mi Airbag light on - dealer ordered "seat belt sensor" for passenger side but never followed up to install. The light has since been off. 
38000 mi

US $50
The airbag light would come on intermittently when there are passengers in the car. Dealer diagnosed: passenger seat belt tensioner was not working as intended. Dealer ordered and replaced parts. Paid my deductible for the CPO warranty. 
100440 mi

C $210
Xenon bulb replaced 
120500 mi

US $250
AC system was running low on refrigerant. No leak was detected. 

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2005.5 Audi A4 4dr Sedan

255-horsepower 3.1L V6 6-speed shiftable automatic AWD

100000 mi

US $300
Rear Sunshade Motor Failed 
25000 mi 2 faulty ignition coils were causing cylinder misfires which lead to the engine being rough at idle. The ignition coils were replaced under the manufacturer's warranty. 
37000 mi Driver side window regulator replaced under factory warranty Outstanding work: Torn vinyl side bolster 

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2005.5 Audi A4 / S4

Engine not specified

51000 mi

US $50
Airbag warning light illuminated. 

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2005 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

76300 mi Window washer fluid began leaking. Determined leak was from faulty pump. Pump replaced. 
82000 mi

US $110
Replaced weak battery 
40000 mi Passenger Window Regulator New Window Lock Switch New Front Upper Control Arms New Glove Box Door 
45000 mi

US $300
A/C Compressor malfunction. Was operating intermittantly, repaired under CPO 

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2005 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

65000 mi

US $1600
Front passenger head light would fail after 1 to 2 hours. This is a failure mode of a bad Xenon headlight. 
83000 mi Recharged the AC but still doesn't blow very cold. Probably needs more work. 
92000 mi

US $1100
Hatch latch does not open when sun is shining on the hatch. replace servo, didn't fix second replacement replaces another switch 
101000 mi

US $220
Every year I need to get my AC recharged. The shop has looked for the leak for the last 4 years and has never found, so I will go in to the shop in late spring and get a recharge. 
88000 mi

US $100
the driver window regulator (window stopped rolling up) 
95000 mi seat heaters did not work 
103000 mi

US $300
Replace starter (intermittent failing). 
67000 mi A/C blows hot air all of a sudden. Shop checked system, plenty of R134 in system. Shop not sure what the problem is, need to bring car back for further diagnostic work. 
68000 mi

US $200
A/C was still not working properly. Took to dealer as previous mechanic at non-Audi shop felt there was something wrong with the system (and not just low on R134a). Dealer could find no issues other than low R134a level. 
81000 mi

US $250
Airbag light on, replaced one of the passenger side airbags. 

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2005 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

76000 mi replace compressor 
84000 mi Driver seat heater failed. New heater grid replaced under warranty 
76000 mi

US $45
Front passenger window regulator failed. Cabling found broken and frayed during replacement. 
45300 mi

US $1000
Air Bag Light on-Replaced Air Bag Sensor, Leaking Sealant/Coolant Gasket, Replaced Tailight bulb, Performed 45,000 maintenance sErvice with brake flush. 
57000 mi

US $300
Passenger front window regulator not working 

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2005 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

60140 mi

C $3000
AC failed, requires new compressor $1400 item, plus costs of a dryer. http://audiwarranty.blogspot.com Car brought to a private repair shop for service, replaced a part of the AC unit, but problem persists, car needs a new AC compressor 
63240 mi New A/C compressor. 
63840 mi

C $900
Starter failure, car would not start for a long time when cold, replaced clutch switch, checked battery, then replaced starter problem solved. 
65500 mi

C $800
HVAC pressure switch failure and system leak 
98000 mi

US $2200
reverse lights not working, replaced reverse light switch at the 6MT transmission. 
105000 mi

US $140
Front Driver side window regulator went out. I was able to get a replacement part online and performed the repair myself. 
93000 mi

US $350
Driverside window glass would not rise up. 
97000 mi Door window switches, locks, sensors on driver's not working 
32500 mi

US $85
Car needs a new AC compressor A/C condenser replaced 
34700 mi

US $50
Driver seat heater not working. Seat heating element was replaced 
40000 mi

US $100
Window regulator was broken. Covered under Audi Pure Protection Gold Warranty 
91500 mi dealer tried the cam-position sensors and the clutch sensor. turned out to be the starter 
33214 mi driver's switch for a rear window stopped working. switch replaced under warranty. 
35159 mi headlamp assemblies fogged up. replaced under warranty. 
112000 mi

US $2000
AC clutch seized. 
44000 mi

US $440
Headlight sensor was bad. Replaced rearview mirror. 

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2005 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

104000 mi

US $300
Battery replace along with oil change. Other items needed fixed but the dealer was asking for my first born and she wasn't willing so I found a great independent shop. 
44000 mi passenger window does not operate with all windows switch. 

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2005 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed manual AWD

63300 mi

US $700
alternator belt & tensioner 
102000 mi

US $5200
A/C compressor, HVAC hoses,  
36000 mi

US $400
drivers side window regulator went bad at 36k 
48360 mi Starter motor not working properly. Memory switch for recalling position of driver's seat had to be replaced. 

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2005 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

65000 mi Side impact airbag fault tripped the dashboard "air bag" light 
102000 mi Compressor failure; needed replacement 
29000 mi

US $75
replace defective daylight running light bulb 

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2005 Audi A4 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

41000 mi Drivers window regulator failed. 
54000 mi

US $50
Driver's window regulator failed..again. 

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2005 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

87000 mi A/C not blowing cold when idling when sold. 
110000 mi

US $975
leaky O rings; replaced O rings and added coolant A/C flap behind glove box opened intermittently; as a result A/C sometimes was fine, other times was only available on right side of car with outside temperature air blowing in on the left side. Flap replaced. 
84000 mi Antenna booster stopped working and no radio signal. They replaced the booster. 
75000 mi

US $1935
Windshield wiper pump replaced. 

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2005 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed manual AWD

78000 mi HVAC issues, getting no heat from the car. Got it fixed at the dealer at no cost. Something regarding a locked vent not moving to control airflow; all fixed and have heat. 

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2005 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

53000 mi

US $3
Right rear tail light. 
59000 mi

US $17
Head light repair 
42000 mi Drivers window grinding and not functioning. Cable came out of regulator. Left front electric window regulator removed and reinstalled. 
46000 mi

US $50
Airbag light was on. Drivers side igniter upper limit exceeded. Drivers seat wiring harness for airbag repaired. 
53500 mi

US $53
Air bag light came on for second time in a year. First time was wiring under driver seat. This time was wiring under passenger seat. 
65000 mi

US $675
Passenger door window regulator broken 
63000 mi

US $330
Drivers side window regulator failure and needed to be replaced. 
76000 mi

US $330
Passenger side window regulator failure and needed to be replaced. 
117000 mi

US $400
Driver and Passenger Window regulators for the second time each. 
151000 mi

US $300
replaced battery a month prior and new battery was not charging properly. Thought could be alternator. 
Mileage unknown/Warranty Replace cup holder and front window motor 
43276 mi Replace air conditioner compressor , reinitialized window memory 
51300 mi Certified used car warranty Replace driver's door motor, replace sunroof potentiometer, replace fuel pump 

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2005 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

109000 mi

US $900
Defective headlamp sensor detector failure lamp intermittently lights up on lateral acceleration 

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2005 Audi A4 2dr Convertible

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

89000 mi

US $3254
Continuation of intermittent electrical problem plaguing car since March. Ran fault codes, found ect sensor @ 48c degrees, replaced, Installed new sensor in water neck flange at radiator, problem in instrument cluster, no repair attempted. AC head control unit had internal short circuit, shorting out the comfort system. Instrument cluster was having catastrophic communication problems. Faulty AC control head unit and instrument cluster were replaced and re-coded. 
89000 mi Also, crimped wires from the trunk lid wiring harness are giving false brake light out warning lights....The Audi wiring harness is roughly $4200 for the part alone, so it will either be spliced to fix, or I will learn to live with it if I keep the car. 
89000 mi Crimped wires from the trunk lid wiring harness. 

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2005 Audi A4 2dr Convertible

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

37740 mi Brake light bulb and tail light bulb inoperable, removed and replaced. 
47977 mi Right side brake light open circuit, remained lit. Removed and replaced bulb. Driver side wiper not touching glass, spring broken, replaced. Actuator for locking gas door broken, replaced. Glove box popped open at high speeds, hinge fixed. 
96000 mi

US $4000
Ac compressor replaced 

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2005 Audi A4 / S4

Engine not specified

88000 mi

US $550
Starter replacement. Symptom: turning key to start, but no start, no sounds, no nothing. 

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2005 Audi A4 / S4 4-door

4-cylinder automatic 2WD

53940 mi

$500
electrical window motor on front left side u/s 

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2005 Audi A4 / S4 / RS4

Engine not specified

78000 mi

US $500
window motor failed. 

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2004.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

54000 mi

US $150
Replaced original battery! 

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2004.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

52000 mi window regulator broke so a new assembly had to be ordered. can be found for roughly $120 online from genuineaudiparts.com, I believe is the site. easy DIY from www.audizine.com/forum. not a big deal 

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2004 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

44000 mi

US $180
AC need recharge, not under warranty 
57000 mi

US $2000
AC works intermitently, Repairs $2000, Audi would pay $1000 of the repair in assistance but delaying repair. 
71000 mi

US $275
replace trunk latch actuator 
73500 mi

US $100
Replaced front left turn signal bulb and socket, replaced key fob batteries, reprogrammed kets 
39000 mi Air conditioner wasn't working. The air conditioning compressor needed replacement. The work was covered under the Audi CPO warranty. While there, they also changed oil, filters and fluids. 
40000 mi

US $50
Driver window regulator failed - apparently a very common problem for Audi/VW. 

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2004 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

21700 mi

C $800
Airbag light on. Passenger side seat airbag module replaces. Sensor connector had been previously replaced. 
45880 mi

C $400
Rear latch mechanism failed; unable to close hatch. Replaced latch. 
65720 mi

C $400
Battery replaced after car failed to start; reset modules as required. 

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2004 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

83000 mi

US $420
Front passenger window regulator replacement 
70000 mi

US $2200
AC was not working, compressor needed to replaced & because of metal bit of the failed compressor were in the dryer it needed to be replaced as well. 
78000 mi

US $3800
Replaced A/C compressor and all related components 
37000 mi

US $200
AC compressor failure 
62000 mi

US $400
o ring in system failed battery cable corroded 
68000 mi

US $540
Pass front window inoperable - replaced window regulator 
91000 mi

US $1800
Delphi alternator in these cars a known weakness. Replaced with an upgraded Hitachi unit that required a couple of updates to the existing water cooling for the alternator. 
108000 mi

US $1000
High Pressure switch failed 
82000 mi

US $110
Fan Broke 
97700 mi

US $750
Fuel gauge gives incorrect reading. Replaced fuel floaters in gas tank. Fuel reading is still incorrect, in fact, it's worse. Still attempting to repair. 
103500 mi Passenger side floater was reading twice the normal Ohm rating, replaced unit. 
40000 mi

US $290
changed both driver and passenger window regulators. 
54000 mi

US $3500
Began hearing a ticking noise from engine compartment. Took to several locations and found that a/c compressor had failed. It was winter so no noticeable difference was noticed. Had compressor replaced with OEM parts and systems refilled. 
142000 mi

US $1200
Driver's side front window regulator needed replacement. 
146700 mi

US $138
Obviously a bad fuel guage sender, but Anchor Audi (never go there again) wasted time and only ran a VAG on the dashboard gauges. Even I know that the back seat needed to be removed and an ohmmeter run across the sender contacts. Sigh... 
159000 mi

US $520
Fuel level sender replaced 
172000 mi

US $520
Front passenger side window regulator needed replacement. 
174000 mi

US $35
Had to replace front turn signal bulb socket. 
206000 mi I had starter replaced due to the common problem with B6 Audis. During cold weather, the starter will not turn over. I've dealt with the problem for years, just patiently waiting for the car to start, but i decided to end the suffering. 
131000 mi

US $51
Issue was related to the Electric trunk lock release solenoid aka the actuator that opens your boot lid when you hit the trunk release button on the fob or hit the switch above the license plate. The actuator was not opening the boot lid. 
58000 mi

US $500
Very slight water damage in driver and passenger footwell, caused damage to telematics and comfort module. Also required reprogramming. 
68000 mi

US $150
Front right window regulator replaced 
57000 mi

US $125
My front passenger side window regulator went bad (known VW/Audi problem). The regulator was successfully replaced by me. 
58000 mi

US $200
Bad alternator 
69300 mi alternator not charging, replaced myself 
70000 mi

US $220
Original OEM starter began to fail in the fall season with colder temperatures in the winter the issue was increasingly frequent. Ordered part online and installed in garage. 
50000 mi

US $50
The compressor went out on the AC. In order to replace the $600 part, the bumper and other front-end parts needed to be removed. 
70000 mi

US $650
Self-diagnosed. Starter motor failed. Replaced with OEM. Messy 5 hour job so ordered part and gave it to a good local shop. Noticed a few non-critical engine oil leaks and a weeping coolant hose (clamp replaced). 

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2004 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

29000 mi

US $700
a/c went out. a/c repair 2nd try: still does not work correctly 
79120 mi

C $2522
Airbag light stayed on constantly. 

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2004 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed manual AWD

97000 mi

US $350
Wipers seized in pivots - corroded from salt in the winter 
111000 mi

US $500
Solenoid in the starter motor was corroded and the car would not start... replaced the starter motor - (the solenoid is integral to the starter). Also replaced the Battery - since the high temperature of the engine weakened it to 60%. 
40000 mi

US $100
Radio stopped working-"no antenna" came up on radio receiver. Connection between radio and antenna had to be replaced. 
45300 mi

US $800
rear brake light burned out 
50000 mi

US $175
Brake sensor switch failed causing ABS light to come on. 
55500 mi

US $300
Nav stopped working-had to replace computer.  
67000 mi Econ button would not go off. Hole in A/C compressor. As I'd only had the car for a week, dealer paid for repair. Passenger window motor & driver's seat motor non-working when I purchased the car. 

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2004 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 6-speed manual AWD

92000 mi Drivers window stopped working, replaced window regulator.Radiator seeping, replaced radiator. 
26235 mi rear seat belt warning light, replaced seat sensor. 
44231 mi left front speaker cutting in and out. Cleaned door electrical connectors to fix. 
91700 mi

US $1600
AC compressor catastrophic failure, apparantly a common problem. Fortunately I was able to buy a new compressor, receiver/dryer and seal kit for about 500 and brought it to local shop for installation(Dealer wanted over 1400 just for parts) 

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2004 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

95480 mi

C $400
Passenger Window motor broken 

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2004 Audi A4 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

12000 mi headlight leveling sensor in the rear view mirror 
47000 mi

US $500
driver window regulator 

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2004 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

28500 mi hid bulb replacement window switch replacement under warranty 
42000 mi Replace toggle switch to control outside mirrors. Covered under warranty 
91140 mi Driver side electric window stuck open and was closed with manual intervention. Part quote received from dealer exorbitantly high - still looking for cheaper alternatives 
99600 mi

R 4000
AC compressor pulley broken off completely. Told that entire AC system had to be replaced - estimated cost about half the current value of the vehicle 
101060 mi

R 10500
AC compressor disintegrated, was replaced together with condenser and accumulator, and whole system flush and re-gas 
109700 mi

R 450
Aircon didn't work, flushed and regassed, detected leak on valve, replaced valve 
125200 mi

R 8000
AC not working and indicator clears when manual override attempted. Check at mechanic, who diagnosed faulty compressor. Replaced 

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2004 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed manual AWD

176000 mi

US $6
Alternator quit working. Determined brushes needed to be replaced. Brushes $2.00, sandpaper $4.00. 
132000 mi

US $1020
replaced window regulator 
86000 mi

US $835
Airbag TSB needed completed. 
96720 mi

C $700
Evaporator got damaged by a road debris 
111300 mi

US $250
Drivers side aigbar ignitor code - known issue with these cars. The harness has little slack, moving seat to limits sometimes stresses harness, it loosens up causing code. Connector cleaned and reassembled. 
118000 mi

US $90
Side Airbag Ignitor code again. Driver's seat. Seat removed, contacts cleaned all reinstalled. Quicker and cheaper to do this than replace harness. 
45000 mi Seatbelt in back was replaced caused airbag light when engaged, also had 45,000 maintenence done for free. 

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2004 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

101000 mi

US $1100
Replacement of fuel gauge system. 
73340 mi

C $70
I changed the drivers door window regulator myself because the dealer wanted $495 
98540 mi

C $150
drivers front window regulator failed again 
107560 mi

C $100
Oil level sensor light on dash. Oil Level Sensor replaced. 
111600 mi

C $100
Replaced drivers side front window regulator (2nd replacement) 
128300 mi

C $25
replace brake light switch 
130200 mi

C $54
Replaced left fog light bulb 
133300 mi

C $80
Dead cell in the battery resulting in vehicle failed to start 
133300 mi

C $40
Drivers window switch on the armrest console stopped working. Replaced console switch. 
90000 mi

US $220
Dipped headlight bulb needed replacing my cost $5 + 1hour labor. Shop quote $120 
100000 mi

US $62
passenger headlight bulb change, and brake light... total cost $10 to change myself ... bulbs from ebay / amazon 
53000 mi

US $100
Windshield Wiper linkage/motor failed 
100000 mi

US $165
AC needed recharged and checked for leaks. 
64000 mi

US $50
window motor and sunroof motor replaced 
46000 mi

US $426
Motor regulator malfunctioned in front drivers-side door. 
94000 mi

US $800
AC not blowing cold. 
97000 mi

US $1100
Front passenger window regulator and motor.  Hood alarm switch. 
85000 mi

US $1500
Passenger side window regulator broken. 
62000 mi Passenger front Window regulator was bad. Dealer replaced under CPO warranty 

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2004 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

97000 mi Sound system had unfixable intermittent crackling and poor AM reception. 
80000 mi

US $350
some sensor related to the xenon headlight 

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2004 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

68000 mi

US $55
Window regulator broke, happens often with this model/type of vehicle. VW's are prone to it also. 
53000 mi

US $5
Blown brake light bulb.  
56000 mi

US $50
-Ground wire faulty from ECM needed to be replaced. It caused CEL light as well as engine misfire. Car stalled and needed to be towed to Audi. Extended warranty covered the tow and repair for $50 (deductable) 
102000 mi

US $125
Drivers side window regulator replaced 

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2004 Audi A4 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

66000 mi

US $220
AC stopped working. 
57000 mi

US $20
Brake switch sensor 

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2004 Audi A4 4-door

turbocharged 6-cylinder diesel CVT 2WD

77000 mi

£250
electric window winder lifter mech failed, common fault, part replaced Air conditioning was ineffective had to be vac'd out and repressurised, no leaks found. 
85300 mi

£80
A/C recharged and dye added to trace leak 

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2004 Audi A4 2dr Convertible

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

38000 mi Brake switch failed causing brake lights to stay on (most of the time); caused battery to discharge 
68000 mi

US $50
refrigerant recharged 
84300 mi

US $250
alternator not charging needed new one 
91000 mi

US $400
Hole in condensor 

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2004 Audi A4 2dr Convertible

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

110000 mi

US $320
SRS - Airbag System. Seat Belt Igniter failed Srs airbag light. Diagnosed to bad connection with odbc2 computer. Replaced connector. 

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2003.5 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

80800 mi

€500
Two electrical relays were changed to prevent rapid battery discharging that was frequently leading to car not starting. Parking sensor malfunction. Emitting a high pitched beep different from usual noises 

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2003 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

43000 mi HVAC air distribution servo motor/s hunting for position with car turned off. Automatic temperature regulation not working properly, air too warm. Air distribution not ccorrect. 
46000 mi Replaced air temperature control servo motor and air flow control servo motor. 

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2003 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed manual AWD

73000 mi

US $100
Driver side HID ballast replaced 
129300 mi Driver rear door wiring broken. 
133920 mi Passenger side window regulator had gone bad. 
108000 mi

US $500
Alarm backup battery leaked and damaged alarm. Need to replace. No alarm beeps or warnings. 

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2003 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

77000 mi

US $85
Air conditioner wasn't cooling properly. Shop recharged and tested system, and it is now cooling properly. 

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2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

139300 mi car wouldn't start but battery was new. needed new starter solenoid. 
61380 mi  

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2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

114000 mi

US $350
Replaced cam shaft positioning sensor. Prevents occasional stalls when car is cruising or decelerating and can't accurately sense the speed. 
39000 mi radio antenna amp replacement 
44000 mi wrong turn signal turning on then switching to correct signal after a random period of time, usually around 10 seconds 
56500 mi wiring harness to starter failed, engine would not start. 
36000 mi Replaced radio due to lines in the display, Covered by Dealer under warranty 
64000 mi

US $912
replaced comfort control module part: $200 labor: $300 
19000 mi Drivers Side tail light burned out. 
133000 mi

US $40
purchased part on Ebay and will repair it shortly. It is the alarm and module located in the trunks. 
67580 mi

C $850
Repair homelink (garage door opener) module. 
68820 mi Right rear running light replaced.  
87420 mi

C $600
A/C recharged and  front signal light lamp replaced. 
119000 mi

US $1400
Thermostat & Heater Core Replaced. 

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2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

8000 mi Window switch cluster in drivers door not responding. Replaced under warranty. 
40000 mi Passengers side xenon light severely flickering. Dealer service department was "unable to reproduce symptom". 

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2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

65000 mi

US $90
Windshield washer pump had to be replaced, because it was not functioning and lead to loss of fluid 
48000 mi

US $50
driver main window switch assembly failure 
115000 mi

US $200
Driver door wiring harness 
127000 mi

US $180
rear left window regulator broke and was replaced with OEM part supplied by owner 
127500 mi oil level sensor light came up. replaced sensor. 
140000 mi

US $250
grounding wires for license plate light went faulty 
94860 mi

C $60
Wiring between chases and door wore out.spliced and replaced. 
54000 mi

US $50
Replaced trunk switch (under warranty) 
55000 mi

US $50
Replaced starter (under warranty) 
41000 mi

US $400
headlight leveling system failed 
84700 mi auto leveling lights failed 
72000 mi

US $250
The rear driver side window regulator broke.  
72000 mi

US $250
The rear passenger side window regulator broke. Currently waiting to see if the front regulators break. 

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2003 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

161000 mi

US $230
Brake switch; 
55619 mi

US $25
Replace right rear tail light 
59275 mi

US $29
Replace interior light under right front seat 
60668 mi

US $29
Replace left rear tail light bulbs 
80328 mi

US $43
Replace right front turn signal 
82766 mi

US $280
Repair license plate bulb assembly 
90000 mi

US $50
Mirrors move when car unlocked with remote. Headlight switch backlight led inorperative. 
140000 mi

US $1900
a/c compressor seized. compressor and condenser replaced 
171700 mi

US $600
a/c compressor replaced 
204000 mi

US $15
clutch pedal switch replaced 
209700 mi

US $140
replaced battery 
158000 mi

US $500
Driver window's motor failed for the 2nd time. Very expensive each time. 

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2003 Audi A4 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

65000 mi

US $200
drivers side window button 
71000 mi

US $300
motor for windshield wipers 
44765 mi trunk release switch is broken. not repaired yet 
62830 mi

US $363
replace windshield wiper transmission 
71000 mi

US $600
The antenna selection module in the radio failed, which caused the radio to lose reception for most FM stations. The repair for this was $400. The car also needed new front brake pads, which was $200 with parts and labor. 
US $400 Driver's window (regulator) 
101000 mi

US $1
Washer pump went out. Replaced with new part bought off ebay for $12. Problem fixed. 
80000 mi

US $800
AC compressor has failed for the fourth time in 4000 mi. First time it was the bolts that backed out, caught the pulley and destroyed the comp. Second time, internal modulator failed and third time the clutch was smoked. 

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2003 Audi A4 / S4 4-door

turbocharged 4-cylinder diesel manual AWD

96100 mi

€1277
Leak around the pollen filter. Water leaked in on top of ECU and there were multiple electrical problems due to then. Leak found and repaired, ECU replaced. Delay in supply of replacement ECU. 

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2002.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

69000 mi

US $70
Driver side front indicator bulb housing got burnt out, possibly due to a bad grounding issue. Audi dealer in Omaha NE on the first visit replaced bulb and on the second visit 'supposedly' replaced turn signal indicator stalk. An independent mechanic fixe 

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2002.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

56420 mi

C $500
Driver side door speaker connection intermittent, likely due to poor connection. Wires reconnected, connectors reset. problem resolved 
96000 mi

US $1500
Parasitic draw on battery. 8 hrs diagnositic time. Replaced door wiring harness and door latch. VERY EXPENSIVE repair.  

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2002 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

60140 mi

C $70
License plate bulb, but screw was locked/stripped/stuck, owner unable to replace. 
92000 mi

US $60
temp sensor, only affected gauge 

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2002 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

139000 mi

US $175
Backup lights always on. Switch located on transmission (?) failed and had to be replaced. 
145000 mi bad pump for windshield wiper fluid electric window intermittent working and other electricals, etc. Had to stop throwing $ down a deep dark hole. 

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2002 Audi A4 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

125000 mi

US $1500
Alternator went bad. Had alternator replaced. Very labor intensive. 

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2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

51000 mi

US $200
horn replaced. 
69000 mi

US $250
both rear passenger window regulators replaced. 
34000 mi Faulty front turn signal. 
41000 mi

US $800
Problem with driver's lumbar support caused clicking noises and back panel of seat to pop out at bottom. 
101000 mi

US $130
Right rear window regulator replaced. 100,000 mile oil change. 
74000 mi

US $500
Alarm speaker not working. Lights are working. Not Fixed. 

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2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

104000 mi

US $217
Headlight electrical connector was broken. I used some electrical tape to secure the connector in place. seems to be working for now.  Wiring for the door harness has severed, losing window and wireless lock capability. Driver's side wiring harness had frayed and was no longer controlling the windows. The part was replaced. Headlight connector was broken and had to be replaced 
120000 mi

US $65
Battery was drained so recharged it. it drained again within 3 days. replaced battery under warranty. unsure yet if this fix worked of if there is a parasitic drain somewhere in the system 
122000 mi

US $15
Driver door has stopped locking with the wireless remote. Can lock manually only. 
124000 mi

US $45
Door lock on left driver still not working remotely. Door actuator was not the issue. will attempt a replacement of door harness again 
87000 mi

US $725
Right Rear Brake Light 
88000 mi Turn signal bulb. 
39000 mi

US $50
passenger front door electical failure (window,mirror,ilumination,lock not operational) computer replaced 
126000 mi

US $10
Antenna booster for radio and remote. Used binder clips and ruler to squeeze it back together. Radio works, but remote range is still extremely short. 
97000 mi

US $1800
rear left window regulator 
145000 mi

US $650
ac took a while to kick in 
152000 mi

US $850
2 window regulators 
72000 mi

US $20
Both high and low tones horns went out 
73000 mi

US $40
Changed horn, but relay broke 
65000 mi

US $250
Driver side power window relay. 

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2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

41000 mi WIndow motor and regulator. 
66000 mi

US $8
Blinker light bulb. 
72000 mi

US $150
Windshield water pump 
105700 mi

US $290
Headlight switch needed replacing. 
118000 mi

US $130
Window regulator. 

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2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

25000 mi Replace defective Radio/CD changer (warranty) 
60000 mi

US $385
Replace defective A/C Condenser (50% warranty) 
126000 mi

US $300
Sensor in the system replaced, but problem is not fixed yet. Will return to shop in the near future. 
145500 mi

US $200
3rd recharge in 3 years. No leaks found this time around. 
93000 mi

US $400
Driver window mechanism repair 
96000 mi Headlight bulb replaced. 
139000 mi Scanned and found an evap code. Not the gas cap, not hurting anything other than maybe the environment...barely so i am leaving it? I bought it this way. 
141700 mi

US $300
No cruise control. Replaced clutch switch 
124000 mi

C $800
license plate lights and lens replaced due to corrosion 
127100 mi

C $300
ac compressor failure 
150660 mi auto leveling headlights error code and drivers door interior light switch 
74000 mi

US $78
Windshield washer pump motor siezed. Blew associated fuse. I bought new washer pump, installed myself. Headlight bulb, changed myself. Took one hour, shop could probably do it in 30 minutes. 
102000 mi A/C blew cold at idle, but not at highway speed. Found vacuum leak, large 3 way hose split. Will replace next time I am near dealer, but fixed for now with duct tape. 
218700 mi

US $1100
A/C would stop blowing cool air after a period of time on high temperature days (90+). A/C was recharged. 
47000 mi

US $85
Car went into crawl mode. Dealer found issue with cruise control switch. Had car towed to dealer 
92000 mi

US $94
Replaced one front headlight and both front blinkers. Blinkers failed due to burnt connections, fixed with an electrical sealant to keep out moisture. 
215000 mi

US $75
Oil level sensor began intermittently incorrectly reporting low oil level. Sensor was replaced. 
216000 mi

US $45
low pressure AC line between condenser and dryer was leaking. Line was repaired with new rubber/crimps 
90000 mi

US $400
rear window motor replaced 

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2002 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

159700 mi

US $265
Power to trunk lid failed, lights and latch not working. Replaced latch switch and lights came on, but latch still not working. 6 days of diagnostics could not identify problem. Audi dealer refused to provide wiring diagram for trunk lid. 
180000 mi Power to trunk lid never entirely fixed. 
40500 mi replaced radio 
49582 mi speakers go in and out in volume. Installed felt strips in all 4 doors. 
87000 mi

US $50
Sunroof would randomly tilt open and close during driving. Dealership replaced a switch. 
77000 mi

US $733
Driver's door controls inoperable. Power windows inoperable in entire vehicle. Driver's door controls inoperable. Power windows inoperable in entire vehicle. 

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2002 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

63000 mi

US $200
Both horns needed to be replaced. 
128000 mi

US $800
Alternator failure. Replaced OEM alternator with after-market. 
141000 mi

US $230
clutch position switch 
146000 mi

US $450
windshield wiper control unit failed 
158300 mi

US $200
all windows did not go down; wiring harness to drivers door replaced 
75000 mi

US $627
Passenger HID bulb was discolored which indicates approaching failure. Shop replaced it with a new bulb and raised the default setting for the auto-leveling bulb system for increased visibility. 

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2002 Audi A4 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

120000 mi

US $100
the windshield fluid wasn't coming out but the wipers were working fine. I took it to the dealer and they found that a fuse need to be replaced. also told me that if this happens again, the pump and the protective cover will need to change. 
146000 mi

US $295
The turning signal switch got replaced. 
164000 mi

US $910
the left rear window regulator needed to be replaced. 
43000 mi rear brake light was off, shop replaced at no cost 
130000 mi Alarm horn has failed. Fault for this alarm horn also registered in the computer. Replacement cost estimate was ~$500. Not repaired due to high cost/low usage. 
164000 mi one fuel cell failure. Chargable only to ~10.5V 
190000 mi

US $200
Left headlight blown. Right headlight heavy flickering. Both headlight bulbs replaced. 

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2002 Audi A4 / S4

Engine not specified

107000 mi

US $694
Many electrical functions were either not working, or operating erratically (alarm / interior lights / trunck lid / door locks, etc.) Mechanic replaced the "convenience module" on floor, which had failed (NOT due to exposure to water). 

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2002 Audi A4 / S4 4-door

turbocharged 4-cylinder diesel manual 2WD

119660 mi

R 350
driver door wiring connector. wires cracked from door opening and closing, causing window to stop working. no error lights 

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2002 Audi A4 / S4 4-door

4-cylinder manual 2WD

132060 mi

R 850
Alarm siren kept going off 

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2001.5 Audi A4

Engine not specified

49000 mi

US $500
Alternator went bad. 

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2001.5 Audi A4 4dr Wagon

turbocharged 250hp 2.7L V6 6-speed manual AWD

38000 mi

US $50
Auto-dimming rear view mirror went bad 
45000 mi

US $40
Flasher relay went bad. 
71000 mi

US $500
Oil level sensor bad, replaced 
78500 mi

US $2000
Alternator failed, replaced 
83000 mi

US $960
Replaced battery - dead 
192700 mi

US $120
turn signals (relay) 

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2001.5 Audi A4 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

45000 mi

US $100
AC not cooling sufficiently. Just needed a recharge. No leaks were found. 

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2001.5 Audi A4 4dr Sedan

turbocharged 250hp 2.7L V6 5-speed shiftable automatic AWD

100440 mi

C $100
A/C recharge required 

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2001.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

116560 mi leaking onto passenger side floor, plenum drain holes probably clogged. 

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2001.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

102000 mi

US $400
Alternator was not charging battery. Tested electrical system at shop. New alternator was installed, problem resolved. 
69000 mi

US $200
Headlight wiring harness cracking and deteoriation, to the point of needing replacement. Replaced headlight assemblies, bulbs, ballasts on both sides. 
69000 mi

US $1800
Compressor failed. Replaced compressor, dryer, serpentine belt, condensor. Waterpump also was defective, was replaced. 
86800 mi

C $400
driver side fog light was severely corroded and required replacement 
194000 mi

US $150
Oil Level Sensor replaced 

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2001.5 Audi A4 / S4 / RS4 4-door

turbocharged 6-cylinder manual AWD

67000 mi Car would randomly not have a charge on the battery and require a jump-start, dealer replaced battery. The battery was new as of May '07. While the car was at the dealer for service, it was actually stolen. Recovered the next day, but still. 

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2001 Audi A4

Engine not specified

79000 mi

US $1350
Air bag light came on and needed to replace air bag module (about $900). Turn signal stopped working about same time. Replaced flasher relay. 

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2001 Audi A4 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

111000 mi

US $180
Windshield wiper motor replaced 

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2001 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic FWD

79000 mi

US $300
Brought to University Audi in Dallas, TX to have oil changed $90. Blinkers would not work $130 to detect problem $75 for relay switch. $26 tax Total $321 

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2001 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

97000 mi

US $500
Replace noisy window regulator. 
135700 mi

US $130
No AC Airbag control module failed 
137000 mi Heated seat unit burned through drivers seat cushion. 
117000 mi

US $1400
Heater inoperable. Replaced heater coil, r&r dashboard 10 hours labor. 

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2001 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

236000 mi

US $60
Headlight washer pump failed 
278000 mi

US $120
Installed new battery 
157000 mi

US $250
AC charge, C High pressure switch changed. 
154700 mi

US $150
hazard relay 
168640 mi

C $320
Replaced original alternator with re-manufactured alternator 

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2001 Audi A4 4dr Sedan

190-horsepower 2.8L V6 5-speed shiftable automatic AWD

89700 mi

US $75
Needed refrigerant. Had lost about half. 
93000 mi

US $375
LR Window regulator 
34000 mi

US $125
Heater does not work. 

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2001 Audi A4 4dr Sedan

190-horsepower 2.8L V6 5-speed manual AWD

134000 mi

US $100
License plate light assembly corroded and replaced 

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2001 Audi A4 / S4 4-door

turbocharged 4-cylinder diesel manual 2WD

70680 mi

€650
Compressor or A/C went off. Must to be replaced for second time. 

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2000 Audi A4 4dr Wagon

turbocharged 150hp 1.8L I4 5-speed manual AWD

138000 mi

US $800
AC Compressor replacement 
145000 mi

US $465
AC TENSIONER and BELT REPLACED 
146000 mi

US $500
Evacuate and refill A/C refrigerant.  

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2000 Audi A4 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

149000 mi

US $611
Failed Alternator 
77000 mi

US $1300
ac compressor mounting bolts broke off. ac compressor then seized and required replacement. 
181000 mi

US $912
Replaced Alternator 
49600 mi

C $1800
Replaced 1 windshield washer pump. 
78300 mi

C $250
Replaced battery 
79980 mi

C $400
Replaced dashboard LED display with a reconditioned unit. 
81000 mi

US $200
HVAC cage fan broke (motor still good, but entire unit has to be replaced). 
85000 mi

US $180
replaced starter 
87000 mi

US $20
Replaced window regulator clips that had failed with stronger A6 clips. 
91300 mi

US $20
Replaced HID bulb. 

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2000 Audi A4 4dr Sedan

turbocharged 150hp 1.8L I4 5-speed manual AWD

188480 mi

C $200
Replaced driver side window regulator. 
135000 mi

US $80
Finally got around to zip-tying the airbag connector under the driver's seat to clear the airbag light. Cleared light with vag-com. 

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2000 Audi A4 4dr Sedan

190-horsepower 2.8L V6 5-speed shiftable automatic AWD

71000 mi

US $100
a/c drain is plastic, melted closed from high heat, could be from heat shield problem earlier 

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2000 Audi A4 / S4 4-door

6-cylinder manual AWD

120000 mi Central locking vacuum pump dead. AM radio dead. 
169000 mi

US $150
Faded Cluster display 

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1999.5 Audi A4 4dr Wagon

turbocharged 150hp 1.8L I4 5-speed manual AWD

113000 mi

US $800
A/C Compressor failed 
123000 mi Blinkers not working. Hazard switch opened up, cleaned, re-installed. Fixed issue. 
167000 mi

US $1200
Driver's door lock actuator froze. Part replaced. 
182500 mi

US $380
Replaced dysfunctional windshield wiper stalk (switch/relay unit). 
183000 mi

US $575
Alternator failed, original part with ~183,000 miles. 
184700 mi

US $380
Replaced dysfunctional windshield wiper stalk (switch/relay unit). 
188000 mi

US $100
Door lock system vacuum pump failed. Replaced w recycled part. 

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1999.5 Audi A4 / S4 / RS4 4-door

turbocharged 4-cylinder manual AWD

78000 mi

US $240
Window regulator failed. 
90000 mi

US $1500
A/C Compressor destroyed itself, requiring replacement of a number of parts.  
98000 mi

US $500
two window regulators failed. now have all 4 working windows. used independent mechanic 

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1999 Audi A4

Engine not specified

107000 mi

US $100
Cruise control module replaced. 
118000 mi

US $100
Fix airbag connection. 

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1999 Audi A4 4-door

turbocharged 4-cylinder manual AWD

145000 mi

US $300
Upon completion of last fuel pump repair, technician noticed passenger window lowered, but not rising, remove and replace front passenger window motor - corrected problem Central vacuum lock pump failure, unable to use remote unlock or interior unlock, replacement part > $1,000! (parts only!!!) opted to NOT repair at this cost. Disappointed in costly safety item, likely caused by leak in extensive vacuum tube 
147000 mi

US $350
All windows, sunroof non-operational. Defective central locking device caused by water leakage in rear right corner. Replaced device, but this didn't fix. Wiring still wet, once dry will try cleaning corrosion. 
148000 mi

US $45
A/C non-operational -corrected by adding 1.4 cans of refrigerant - works well now - very COLD! 
160000 mi Intermittent dash console flickering - now non-op security alarm operation. 
165000 mi

US $300
Unknown short discharging battery (killed 2!) Using trickle charges nightly to keep operating until idnetified short. Arr need VAG tool to diag ($300+) 
165500 mi Battery drain identified as Central Locking system (in trunk) had corroded wire connection, cleaned with baking soda / water - corrected lock and battery drain issue (Determined by putting volt meter in-line and using fuse box to identify 
166000 mi

US $50
Drivers side front window regulator failed (in closed position) ordered replacement , will install and replace unit that was acting up (needing driver;'s help when lifting to straighten out how window glass tracks in system. 
166500 mi

US $50
Determined source os electrical drain - coming from non-operational driver's side front electric window, (constantly on un up function) Faulty electrical motor sensor, replaced w/used electrical motor- corrected window operates, 
177000 mi

US $25
Air Bad light illuminated (Caused by passenger seat strain on connection) - Bought OBCII (cheap kind) cleared and corrected light 

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1999 Audi A4 4-door

4-cylinder automatic 2WD

182000 mi

US $50
Self-replacing a burned-out headlight. 
188000 mi

US $25
Burned-out headlight 
193000 mi

US $340
Driver's side window regulator was said to be "binding internally", hindering window motion (though it could still be closed/opened). Regulator was replaced. 
201000 mi

US $1573
Ventilation motors and A/C Heat control unit failure, requiring replacement. 

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1999 Audi A4 / S4

Engine not specified

160000 mi

US $1500
Replaced Ac Evaporator and heater core 
112840 mi Right side Low Beam bulb replaced. Provided by prior owner of car. 
121520 mi

C $10
Driver side foglamp burnt out, and replaced. Involved easy removal of trim, hard to pull out housing. Pain in the butt. 

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1999 Audi A4 / S4 4-door

6-cylinder automatic AWD

117000 mi

US $154
Headlight switch failure in steering column. Had to remove airbag, buy a 12mm 12-point bit to remove the steering wheel, removed clock spring and then the headlight switch. Took less than one hour to complete replacement. 

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1998.5 Audi A4

Engine not specified

240000 mi

US $350
R&R alternator 

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1998 Audi A4

Engine not specified

79760 mi

A $385
Recharged AC and Minor Service 

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1998 Audi A4 / S4 4-door

6-cylinder manual AWD

167000 mi

US $300
Exterior Temp sensor bad. AC won't work when indicated air temp is -58F. Sensor replaced. 
170000 mi

US $750
Steering wheel clock spring (Air Bag light) was bad. Replaced. Discovered that anther SRS component was also faulty. 
171700 mi The seat air bag sensor was faulty and was replaced. 

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1997 Audi A4 / S4 4-door

turbocharged 4-cylinder automatic AWD

117000 mi

US $400
wipers weren't working. The independant shop replaced & repaired. 

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1997 Audi A4 / S4 4-door

6-cylinder manual AWD

113000 mi

US $125
Battery draining too soon due to overall lack of driving. 

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Audi A4 / S4 / RS4 Electrical Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Audi A4 / S4 / RS4 problems occur, check out our car reliability stats.