2002 Audi A4 Audi A4 2002

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2002 Audi A4 repairs by problem area

Engine (52%)

Transmission and Drivetrain (9%)

Brakes and Traction Control (6%)

Suspension and Steering (12%)

Electrical and Air Conditioning (16%)

Paint, Rust, Leaks, Rattles, and Trim (2%)

Other (4%)

Chart based on 676 repairs.
See TSBs and recalls for the 2002 Audi A4.

2002 Audi A4 repair cost distribution

$2500+ (4%)

$1000 - $2499 (9%)

$500 - $999 (16%)

$100 - $499 (34%)

< $100 (37%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 446 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2002 Audi A4

turbocharged 4-cylinder manual AWD

Audi A4 in Finland
Apr 2009 - Dec 2010
Jun 2009

105400 mi

€580
Water pump failure. These are made of plastic that is not bound to last. A very common problem with this engine. 
Dec 2009

108500 mi

€400
Passenger side front bearing started to make noises. Dealership's forensic report confirmed that it was worn out. A new one was installed, problem solved. 
Jul 2010

110980 mi

€500
Wheel bearings started to make some noise. Replaced it to avoid further problems and to get rid of the noise. Also some routine maintenance. 
Dec 2010

111600 mi

€900
Power steering fluid leak through the conrod sealing 

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2002 Audi A4

Engine not specified

Audi A4 in California, United States
Oct 2009 - Sep 2013
Nov 2009

70000 mi

US $150
Oil leaking from engine found by the technician. Gasket replaced. 
Dec 2009

70000 mi

US $1600
oil leak from camshaft seal 
Sep 2010

79000 mi

US $1500
left and right Engine mount support leaks/replaced left and right inner CV boots broken, replaced both left/frong and right/frong axle assembly. 
Oct 2012

96500 mi

US $200
Vibration on the driver side axle, replaced axle. 
Sep 2013

105000 mi

US $900
Water Pump leak, replaced water pump leak. 
Audi A4 in Massachusetts, United States
Dec 2010 - Jan 2011
Jan 2011

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 4dr Wagon

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A4 in Washington, United States
Dec 2011 - Apr 2012
Jan 2012

US $2000
Head gasket failure 
Mar 2012

97000 mi

US $1750
Rear main oil seal leak 

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2002 Audi A4 4dr Wagon

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

Audi A4 in Minnesota, United States
Mar 2013 - Sep 2017
Feb 2015

184600 mi

US $300
POS sensor was bad 
Audi A4 in Massachusetts, United States
May 2009 - Mar 2010
Jun 2009

99000 mi

US $950
Replaced - breather hose, crankcase vent valve, valley pan gasket, etc. Oil change. 

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2002 Audi A4 4dr Wagon

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

Audi A4 in Wisconsin, United States
Nov 2013 - Jun 2016
Mar 2014

131000 mi

US $970
Wheel bearings were very loud 
Jul 2015

161700 mi

US $1600
Head gasket blew oil in coolant 
Audi A4 in Minnesota, United States
Nov 2009 - Dec 2011
Apr 2011

91500 mi

US $60
Coil pack failure, created a very bad miss and could only be driven short distances.  temp sensor, only affected gauge 
Oct 2011

98000 mi

US $30
Replaced leaking rear coolant flange 
Dec 2011

98000 mi
pcv return hose needed replacing when sold 
Audi A4 in British Columbia, Canada
Jul 2008 - Mar 2009
Nov 2008

60140 mi

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

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2002 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed manual AWD

Audi A4 in Maryland, United States
Nov 2008 - Mar 2010
Dec 2008

85000 mi

US $400
Rear coolant flange cracked. 
Audi A4 in Alaska, United States
Dec 2007 - Jun 2022
Mar 2010

37000 mi
Car would not start. Would not turn over. Repair shop could not duplicate problem. 
Jul 2015

72000 mi

US $400
Running poorly and making noises. Timing belt was about to go and was repllaced before any damage was done. Also, regular maintenance was done. 
Audi A4 in Utah, United States
Aug 2017 - Sep 2018
Nov 2017

154000 mi

US $50
Replaced o2 sensor 
Audi A4 in Alberta, Canada
Oct 2014 - Dec 2014
Nov 2014

92480 mi

C $950
Replaced Head for valve issue. 

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2002 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

Audi A4 in California, United States
Jan 2010 - Jun 2011
Feb 2010

100000 mi

US $2000
Left front axle replaced - boot torn. 
May 2010

101900 mi

US $695
replaced radiator due to leak replaced radiator due to leak 
Sep 2010

105000 mi
check engine light - code indicated cat converter/sensors but no obviously problem found. Reset. 
Dec 2010

108000 mi

US $100
leak in headliner from sunroof-was "fixed" by dealer last year. Front drains are ok-back drains totally clogged-shop said they couldn't clear w air rec going back tp-dealer.Dealer said they will try a thin wire tool from Audi. No appt yet. 
Audi A4 in California, United States
Mar 2012 - May 2014
Nov 2012

129400 mi

US $250
Located, purchased and replaced both rear tail light housings due to leakage. 
Nov 2013

139000 mi

US $175
Backup lights always on. Switch located on transmission (?) failed and had to be replaced. 
Jan 2014

133000 mi

US $575
Serpentine belt and tensioner pulley 
Mar 2014

143000 mi

US $250
Coolant overflow tank often low. Tests cannot find any leaks. 
May 2014

143000 mi
Never went further to fix coolant leak, probably a sensor/seal. Same with oil leaking around I believe was spark plug seals? Lots of other things I never fixed for several years. e.g. leaking sunroof bad pump for windshield wiper fluid front end work electric window intermittent working and other electricals, etc. Had to stop throwing $ down a deep dark hole. Fuel pump died, traded car. 

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2002 Audi A4 4dr Wagon

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

Audi A4 in Utah, United States
Jun 2010 - Jun 2012
Aug 2010

99200 mi

US $1500
Torque Converter replacement 
Jun 2012

US $1100
Odd noise. Turned out to be some belts that needed replacing. 
Audi A4 in Virginia, United States
Sep 2006 - Jan 2009
Feb 2007

71000 mi

US $100
Catalytic converter tripped CEL. Mechanic did not road test after reset because of icy road conditions, but CEL has not come back on. 
May 2008

89000 mi

US $650
Inner CV boot. Front control arms. 

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2002 Audi A4 4dr Wagon

Audi A4 in Bulgaria
Jan 2017 - Jun 2022
Apr 2017

204600 mi

$200
Front bearings 
May 2018

217000 mi

$180
Sensor for level of oil 
Apr 2022

253580 mi

$800
New suspension. 

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2002 Audi A4 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A4 in Ohio, United States
Aug 2007 - Nov 2011
Oct 2008

61000 mi

US $200
Leaking coolant after-run or auxiliary pump. Pump located in the "V" of engine beneath the intake manifold. Also required replacement of intake manifold gaskets as this is mandatory with R&R of intake manifold. 
May 2009

67000 mi

US $40
CEL came on - system too lean & audible vacuum leak. Crack/leak in 4-way vac connector & non-return valve 078 611 933B. Temporary fix using RTV silicone made. Purchased part and replaced w/some vac lines. Car fully repaired in 4 hrs total repair time. 
Dec 2009

73000 mi

US $40
Non-return valve in emissions system cracked causing a vacuum leak and a lean condition which triggered the CEL. Installed new valve (part is a dealer only item). 
May 2010

78000 mi

US $40
Coolant Temperature sensor failed - initially erratic and then total failure of temperature gauge response. Replaced sensor with improved design (VW/Audi part) and gauge now works properly. This sensor outputs to both dash gauge and ECU. 
Feb 2011

84000 mi

US $415
Right (passenger) rear wheel bearing was bad and was replaced. Problem evident from noise and vibration. Oil leak coming from recess on front of engine where crank lock pin is inserted during TB change. Plug and o-ring replaced. May not be only oil leak, but it was a major one. 
Sep 2011

90000 mi

US $2400
Water pump bearing failed; noise indicated problem was possibly severe so car towed to prevent more damage. Timing belt,water pump, tensioners and idlers/rollers were all replaced. This was only 20k miles since same service was last done. 
Audi A4 in Georgia, United States
Feb 2011 - Apr 2011
Mar 2011

115000 mi

US $700
Both front axles rebuilt due to leaking CV boots. I chose to rebuild instead of replacing with aftermarket. All joints/boots rebuilt or replaced. 
Audi A4 in Connecticut, United States
Mar 2013 - Jun 2013
May 2013

52600 mi
Timing belt plus water pump, upgraded diverter valve, replaced gaskets (leaking minimally). 

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2002 Audi A4 4dr Sedan

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

Audi A4 in Vermont, United States
Feb 2010 - Jun 2011
Mar 2010

146000 mi

US $140
Wheel bearing wore out at 146k, don't think I can complain. 
Audi A4 in New York, United States
Feb 2010 - Dec 2012
Mar 2010

112000 mi

US $500
o2 sensor went bad. Replaced all 3 to avoid going back at later time. 
Audi A4 in Illinois, United States
Dec 2008 - Mar 2019
Dec 2011

108000 mi

US $850
Oil cooler was leaking into cooling system. 
Sep 2013

125000 mi

US $1500
Alternator went bad. Had alternator replaced. Very labor intensive. Wheel bearing was failing. Replaced wheel bearing. Was getting very noisy. 
Nov 2013

127000 mi

US $1503
Heater Core went bad. Needed to be replaced. Very labor intensive. 
Mar 2014

131000 mi

US $500
Left Rear wheel bearing what bad. Had to replace. 
Aug 2014

137000 mi

US $715
I ordered the auxiliary cooling fan online and did that myself. (I now know how to put the S4 into 'service position' sheesh, so much work just to be able to get at the fan. The fan was $150. (Audi wanted $700 installed). I also ordered a used Throttle Body online for $250 and installed that. It was throwing a fault code and I have to make it qualified to pass for the bi-annual emissions test that is due. (Can you believe Audi wanted $1100 for the Throttle Body-part only.) New spark plugs. Oxygen sensor. 
Sep 2014

139000 mi

US $450
Engine coolant temp sensor failure was causing ECM to think that even when engine was cold, it was at operating temp. This made vehicle very difficult to start and keep running, since it was not receiving an enriched air-fuel mix. 
Oct 2014

139500 mi

US $310
Twice had it towed on flat bed to Audi. The brakes started applying themselves, to the point of near lock up. They could not reproduce it so eventually felt to start with replacing front brake lines. Unsuccessful. 
Nov 2014

141000 mi

US $700
Audi stripped Both front bleeder valves in calipers. Bought after market for $120 each instead of Audi's $840. (dual piston). Merlin's correctly diagnosed master cylinder. Good job. Also replaced FR axle. 
Mar 2015

146000 mi

US $402
No heat. Had to have heater core flushed. 
Mar 2016

161000 mi

US $215
I always replace my own brake pads and rotors but on the rear it needed the calipers replaced. Pistons were froze. 
Dec 2016

165000 mi
Fuel pump went bad. Remove and replace. 
Jan 2018

172000 mi

US $300
LR caliper froze up, also LR brake house callapsed. 

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2002 Audi A4 4dr Sedan

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

Audi A4 in Nebraska, United States
- May 2007
May 2007

74000 mi

US $500
Alarm speaker not working. Lights are working. Not Fixed. 
Audi A4 in Michigan, United States
Mar 2010 - May 2017
May 2010

96800 mi

US $440
CEL required a vacuum line replaced. Replaced plastic coolant flange on back of head. Did work myself. Removed windshield wiper linkage - disassemble, clean and lube main posts and housing. It was frozen solid! 
Sep 2010

101000 mi

US $130
Right rear window regulator replaced. 100,000 mile oil change. 
Nov 2011

117000 mi

US $60
slight miss at low revs and low loads only. Thought it was bad fuel, but replaced plugs, air filter, one coil pack, Techron and alcohol to absorb moisture. Went away for a while, now is back when I filled up the tank with Shell Premium 
Jun 2012

122000 mi
Wipers frozen - linkage needed to again be removed and disassembled/lubricated. Mainly the driver side pivot point bushings. 
Dec 2012

129000 mi

US $140
Replaced rear shock absorbers. Changed to winter tires. 
Oct 2013

137000 mi
Wiper linkage corroded - removed linkage transmission and disassemble,lube and re-install. 
Dec 2013

139000 mi
Replace faulty coil pack and spark plugs fouled by the coil pack 
Dec 2014

153000 mi

US $700
Replace leaking radiator. Replace rear water flange on back of head (insurance measure). Replace heater core for lack of heat. Replace Turbo. Noticed oil in intercooler ducting. Also, the waste gate nut was gone, causing low boost with an open waste gate. Replace timing belt service. Water pump as precaution. Replace complete PCV system due to deteriorated hoses 
Jan 2015

US $400
Replace broken fuel pump. 
Jun 2015

160000 mi
Had to disassemble and re-lube a corroded and stuck windshield wiper linkage/transmission assembly. Seems like a yearly maintenance item. 
Sep 2016

167000 mi

US $95
Replace LF wheel bearing. Corroded in place required additional effort. Replace Battery 
Nov 2016

167600 mi

US $7
Replaced LR window regulator plastic part. 
Mar 2017

169000 mi

US $120
Replaced exhaust flex pipe. 
Audi A4 in Tennessee, United States
Sep 2006 - Aug 2009
Nov 2006

34000 mi
Faulty front turn signal. 
Feb 2007

41000 mi

US $800
Leaky gasket caused oil to collect around spark plugs and coil packs. Problem with driver's lumbar support caused clicking noises and back panel of seat to pop out at bottom. 
Mar 2007

50000 mi

US $50
Thermostat went bad. 
Oct 2007

55000 mi

US $55
thermostat 
Jan 2008

55000 mi

US $55
Power steering leaking. 
Audi A4 in Florida, United States
Jan 2005 - Mar 2010
May 2005

51000 mi

US $200
horn replaced. 
Sep 2006

58000 mi

US $40
coil pack replaced 
Apr 2007

69000 mi

US $250
both rear passenger window regulators replaced. 
Jun 2007

74250 mi

US $40
coil pack replaced 

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2002 Audi A4 4dr Sedan

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

Audi A4 in Illinois, United States
May 2009 - Jan 2011
Mar 2010

87000 mi

US $725
Radiator had pinhole leak Right Rear Brake Light Flushed and bled brake fluid 
Jun 2010

88000 mi
Turn signal bulb. 
Audi A4 in Louisiana, United States
Oct 2014 - Apr 2016
Oct 2015

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. 
Apr 2016

130000 mi
Antenna booster not fixed. 
Audi A4 in Georgia, United States
Apr 2007 - Jun 2011
Sep 2009

78000 mi

US $330
Oxygen sensor failed 
Audi A4 in Washington, United States
Sep 2008 - Apr 2009
Jul 2008

45500 mi

US $40
Valve cover gasket replacement. Oil leaking from numerous spots due to bad gasket. Part purchased from Audi Dealer. 
Aug 2008

46000 mi

US $350
Had to replace a broken water pump. Changed the timing belt and thermostat while I was in there. Did all work myself and paid ~350 for a kit online. 
Jan 2009

50000 mi
Leaking coolant, tightened coolant bleeder screw. 
Mar 2009

50000 mi

US $50
Coilpack went bad. 
Audi A4 in Rhode Island, United States
Jun 2015 - Mar 2016
Dec 2015

335000 mi

US $150
Coolant flange was leaking. 
Audi A4 in Texas, United States
May 2006 - Mar 2010
Jun 2006

56000 mi

US $100
new DV, old one's diaphragm worn out and was losing power. 
Jan 2007

74000 mi

US $1000
new turbo, diy in the front yard, replaced with a k04. 
Audi A4 in Virginia, United States
May 2008 - Sep 2016
Jun 2008

65000 mi

US $250
Rack & pinion was binding. Replaced with refurbished unit. Driver side power window relay. 
Feb 2011

92100 mi

US $200
leaking valve cover gasket shorted an ignition coil 
Aug 2011

95000 mi

US $300
Leaking vacuum hoses-repaired hoses 
Oct 2011

98000 mi

US $280
vacuum leak 
Jun 2016

143000 mi

US $80
Check engine light. Code 17544. Vacuum leak - replaced hose. 
Audi A4 in Pennsylvania, United States
Nov 2010 - Jun 2022
Jan 2011

95800 mi

US $250
There was a no-start condition which the shop determined was caused by a fuel pump. Pump and filter were replaced.  2nd trip this week. The shop misdiagnosed or missed an additional problem - the crankshaft position sensor. New sensor required. No further problems after this.  
Dec 2011

97000 mi

US $300
Thermostat was stuck open after a coolant flush. Replaced the thermostat 
May 2012

103700 mi

US $5
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 
Sep 2012

107000 mi

US $10
The coin tray broke and was no longer functioning. replaced with a new one. 
Nov 2012

107900 mi

US $70
Tailshaft seal was leaking - common problem in these cars. Replaced the seal and re-filled the center differential. 
May 2013

110600 mi
Torn CV boot for over a year - required change of axle. 
Oct 2013

113000 mi
CEL illuminated for over 2 months - the MAF sensor requires cleaning. 
Nov 2013

113200 mi

US $20
Window regulator plastic housing had to be replaced 
Dec 2013

113000 mi
Loss of coolant led to low-coolant light warning. Re-filled with 2qts, as the reservoir was empty. Last coolant fill was 2 yrs ago so a slow leak or evaporation 
Jan 2014

113700 mi

US $60
MAF sensor was replaced to potentially fix the CEL. 
Apr 2014

114700 mi

US $210
Exhaust pipe was correded and rusted at the flex pipe causing bad fuel efficiency and a lot of noise. new flex was cut and welded in 
Jul 2014

118200 mi

US $10
replaced a vacuum line and a pcv check-valve valve cover gasket and half-moon seals were replaced. unable to replace half-moon seals and i may have done a crappy job on the VCG Plastic guide for window regulator broke, requiring replacement 
Dec 2014

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 
May 2015

122000 mi

US $15
Windshield wiper linkage seized and stopped working Driver door has stopped locking with the wireless remote. Can lock manually only. 
Sep 2015

124000 mi

US $45
Windshield washer jets are not working. Door lock on left driver still not working remotely. Door actuator was not the issue. will attempt a replacement of door harness again 
Dec 2015

128000 mi
Right outer CV boot was torn for about 18 months, CV joint was failing. Replaced with re-manufactured axle water getting into the interior from the rear after heavy rains. put some gutter seal into the suspected area, but did not stop the leak. 
Mar 2016

130000 mi
fuel pump and filter have been having issues. no start condition on 3/4/2016. this was preceded by noise coming from the pump. pump is to be replaced Fuel Pump and filter replaced. Fuel pump gasket was ordered but not installed as it was not neccessary Door not locking - wires severed in harness. parts ordered 
May 2016

133000 mi

US $50
finally put in and spliced new wires. the remote lock works now! fuel gasket replaced as fuel was dripping from the tank 
Jun 2016

133000 mi

US $15
Trunk lock actuator failed - needed replacement VCG + Half moon seals were leaking and were replaced... successfully this time! 
Aug 2016

134000 mi

US $50
Attempting to repair motor mounts i introduced a crack into cooling system. still not sure where the leak is coming from. Motor Mount replacements 
Sep 2016

134000 mi

US $50
i believe the crack i heard during the motor mount install was from a PCV system component. replaced the entire set with silicone breather tubes i had purchased previously. replaced the coolant flange, hoses attached and the CTS. however continued leaking. 
Oct 2016

134300 mi

US $50
finally finished previous repairs including the timing belt, water pump Spark Plug replacement in an attempt to address rough idle on startup 
Mar 2017

137500 mi

US $50
Thermostat was leaking around housing. Temperature of car was not reaching optimal quickly enough. Replaced cat with HFC and replaced downpipes + mufflers as they had developed leaks. 
Jun 2017

140000 mi

US $110
Leaking rear struts had turned the car from sporty sedan into bumpy boat. replaced with OE quality replacements Updated parts in the PCV system 
Nov 2017

142500 mi

US $10
Rear Passenger window regulator piece broke (again) - replaced 
Jan 2018

143000 mi

US $80
rear o2 sensor was showing as dead - spliced in a new one. 
Apr 2018

144000 mi

US $30
Dashboard gauge for engine temp does not display correctly - Replaced coolant sensors to see if that was the issue.. did not fix. Likely need to refurb the dash. 
Jul 2021

155000 mi

US $40
Power Steering fluid was low 
Audi A4 in Wisconsin, United States
Apr 2007 - Mar 2010
Mar 2008

73000 mi

US $50
Leaking valve cover on engine. 
Audi A4 in Georgia, United States
Dec 2014 - May 2017
Jun 2015

72000 mi

US $20
Both high and low tones horns went out 
Jul 2015

73000 mi

US $40
Changed horn, but relay broke 
Sep 2016

78000 mi

US $45
Changed inner CV boots and refill CV grease 
Audi A4 in California, United States
Dec 2006 - Sep 2012
Apr 2007

97000 mi

US $1800
rear left window regulator engine mounts replaced water pump causing coolant leak.. replaced waterpump and re-did timing belt service 
Mar 2008

113000 mi

US $200
Catalytic converter replaced. 
Mar 2011

136000 mi

US $800
Power steering pump replaced. It had been whining a bit and a fluid flush didn't help.  
Feb 2012

145300 mi

US $650
Leak at turbo ac took a while to kick in 
Audi A4 in New Jersey, United States
Dec 2006 - Mar 2010
Jun 2007

39000 mi

US $50
brake booster vacuum pump mechanical failure passenger front door electical failure (window,mirror,ilumination,lock not operational) computer replaced 
Audi A4 in British Columbia, Canada
Nov 2009 - Sep 2011
Dec 2009

74400 mi

C $130
Coilpack on cylinder #1 failed. Normal driving, engine near idle but starting to accelerate. Engine was warm and operating normally. No warning. CEL flashed fast, vehicle lost a lot of power and started shaking. Towed to dealer, diagnosed, replaced. 
Jun 2010

81220 mi

C $100
Valve cover & Camshaft Adjuster seal leaks. Both seals replaced.  ABS Control Module. Part ordered by warranty was used and ended up being defective. Second part on order. ABS, ESP and Brake lights all flash due to a communication problem with the module. Car still runs fine but it's annoying. Warranty refuses to buy new part. Keeps installing used parts. 3rd used module has been installed but the problem still exists. Faulty module means no ABS or traction control while driving. Problem ongoing for over a month. 
Sep 2010

81840 mi
ABS control module replaced with new oem part. System recoded. 
Sep 2011

89280 mi
Steering rack was patched because it was leaking. Required multiple visits in August and September. 
Audi A4 in North Carolina, United States
Jul 2009 - Jul 2013
Jul 2011

152000 mi

US $850
2 window regulators 
Jul 2013

163000 mi
Timing belt and head gasket 
Audi A4 in Connecticut, United States
Feb 2013 - Apr 2013
Mar 2013

70000 mi

US $640
Check engine code P1296. Replaced coolant temp sensor near firewall. Thermostat replaced. 
Audi A4 in New York, United States
- Apr 2007
Apr 2007

50000 mi

US $1000
Leaking gasket seal caused a buring oil smell. Gasket was replaced. 

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2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

Audi A4 in South Carolina, United States
Nov 2003 - Apr 2016
Apr 2003

19600 mi
All ignition coils. 
Jan 2006

41000 mi
WIndow motor and regulator. 
Feb 2008

53000 mi

US $106
Engine coolant sensor. Engine coolant sensor + Vacuum hose. 
Jun 2009

66000 mi

US $8
Blinker light bulb. 
Feb 2010

72000 mi

US $150
Windshield water pump 
Jun 2010

75000 mi

US $150
Thermostat. 
Jan 2011

81000 mi

US $225
Coolant flange leak. 
Jun 2011

84000 mi

US $220
Valve cover gasket was replaced. 
Jun 2013

101000 mi

US $70
Brake light switch failed. 
Oct 2013

105300 mi

US $290
Headlight switch needed replacing. 
Oct 2014

114300 mi

US $150
Bad wheel bearing. 
Mar 2015

118000 mi

US $130
Window regulator. 
Audi A4 in Massachusetts, United States
May 2017 - Oct 2017
Jun 2017

175000 mi

US $300
Radiator hoses, thermostat, and sensor replaced 
Sep 2017

175500 mi

US $425
Upper control arm , front driver side of vehicle 
Audi A4 in North Carolina, United States
Oct 2016 - Jun 2022
Jun 2017

259000 mi

US $60
Engine temp gauge indicated running cooler than normal. I ordered the thermostat parts from an online supplier and installed them on a weekend. 
Audi A4 in Australian Capital Territory, Australia
Jun 2013 - Jun 2016
Mar 2015

135160 mi
Rocker cover gasket. Cause was difficult to determine, either failure of the gasket or incorrect installation. 
Dec 2015

148800 mi

A $500
replaced front suspension upper control arms 

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2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

Audi A4 in Massachusetts, United States
Mar 2003 - Mar 2010
Nov 2003

25000 mi
Replace defective Radio/CD changer (warranty) 
Mar 2004

31000 mi
Replace Headight Washer Pumps (warranty) 
Apr 2004

32000 mi
Replace Windshield Wiper Motor (warranty) 
Jun 2005

60000 mi

US $385
Replace defective A/C Condenser (50% warranty) 
Jun 2006

80000 mi

US $152
Replace Broken Vacuum Line 
Nov 2006

90000 mi

US $300
Replace Coolant Temp Sensor, Replace Driver Side Wiper Arm 
Jan 2007

93000 mi

US $1890
Replace Power Steering Rack 
Audi A4 in Ontario, Canada
May 2009 - Aug 2015
Jun 2009

123380 mi

C $50
Coolant leak on heater hose flange on back of engine block. Replaced plastic flange and o ring. 
Jul 2009

124000 mi

C $800
All front control arms replaced, (uppers very loose) license plate lights and lens replaced due to corrosion 
Sep 2009

127100 mi

C $300
ac compressor failure 
Apr 2010

136400 mi

C $100
one rear coil spring broke, replaced pair with used springs 
Jun 2010

138260 mi

C $50
coolant plug leaking on engine 
Jan 2011

150660 mi
auto leveling headlights error code and drivers door interior light switch 
Mar 2011

153760 mi

C $35
Vacuum hose split. replaced with new hose. 
Aug 2015

163060 mi

C $80
Bad engine crank position sensor 
Audi A4 in Ontario, Canada
May 2014 - May 2014
May 2014

77500 mi

C $200
Misfire when cold, replaced MAF, coolant temperature sensor on recommendation from my mechanic 
Audi A4 in Minnesota, United States
May 2010 - Sep 2010
Jul 2010

93000 mi

US $132
Worn rear passenger strut mount causing rattling. Replaced rear strut mounts and fixed problem. 
Sep 2010

93000 mi

US $200
Bad combi-valve throwing a check engine light. Replaced valve and fixed problem. 
Audi A4 in Connecticut, United States
Sep 2006 - Feb 2012
Apr 2007

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. 
Jul 2007

77000 mi

US $2
Check engine light came on. I pulled the code, running lean, cylinder bank 1. Found vacuum hose broken causing leak. Replaced vacuum hose. Cleared code. 
Oct 2008

89000 mi

US $50
Speedometer stopped working. Check engine light came on. Replaced vehicle speed sensor. 
Nov 2008

89000 mi

US $1700
Steering was vague, car wandered, especially over bumps. Replaces all front control arms, tie rod ends, front struts and rear shocks. 
Dec 2008

90000 mi

US $1100
Exhaust pipe cracked between resonator and muffler. Pipe needed to be replaced, as the area of crack was too thin to weld. Replaced entire exhaust system instead. 
Jan 2009

91000 mi

US $100
Engine misfiring. One coil pack died. Elected to replace all 4, as the coil packs are a known issue, and they were only $25 each. 
Jul 2009

94000 mi

US $45
Check engine light came on, pulled code, consulted manual and replaced Engine Coolant Temperature Sensor. 
Mar 2010

99000 mi

US $400
Parking brake cable seized. Replaced both cables. Rear brake pads and rotors replaced from dragging brakes. Replaces front brake rotors and pads due to rust on defective aftermarket rotor. 
Jul 2010

102000 mi
Car started misfiring. Intermittant issue over about 100 miles. Finally the coil pack died and set a code. I replaced 3 coil packs with OEM replacements. Had to order the 4th. Aftermarket coil pack lasted 12,000 miles, so I will replace all 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. 
Jun 2011

112000 mi

US $1
Vacuum leak found, fixed with tape but need to replace more rubber hoses. Vacuum leak causes A/C to work poorly, fools computer to think engine is under hard load. 
Audi A4 in Massachusetts, United States
Nov 2009 - Dec 2013
Apr 2009

88000 mi

US $450
all 4 cyl coils replaced 
May 2009

90000 mi

US $400
rear window motor replaced 
Jan 2010

86300 mi

US $200
Oil dip stick/tube broken and replaced. 
Sep 2010

99000 mi

US $1100
Oil pump stopped working, engine was prone to overheat and cause irreparable damage soon. Replaced Oil Pump, oil pressure sender, and the like. Check engine light came on the night before I brought it to the mechanic, left car immediately. 
Feb 2011

102000 mi

US $90
Ignition coil misfire, 3rd coil replacements. Replaced myself in the driveway after ordering newest series of coils. 
Oct 2013

120000 mi

US $1800
radiator 
Audi A4 in Connecticut, United States
Jun 2002 - Jul 2010
May 2002

4300 mi
Ignition coil failed, car in the shop for 2 weeks due to out of stock on ignition coiils. 
Mar 2008

125000 mi

US $325
Ignition coil failed. New set needed. 
Jul 2009

135000 mi

US $7200
Intake valve head broke. Damaged cylinder 1,2 and 4 beyond repair. New block and head needed. Replaced clutch during vist since engine was being replaced and access was easy. 
Jul 2010

125000 mi

US $8500
Intake valve head broke and debris damaged cylinders 1,2 and 3 beyond repair due to migration through the intake manifold since the head on the valve was broken and open during power stroke. Estimated $8500 to repair, so junked. 
Audi A4 in Michigan, United States
Nov 2010 - Jun 2018
Jan 2011

192000 mi

US $6000
Emergency hand brake unusable/seized. Would normally stick in winter but became unusable recently. Hand brake cables were replaced during this trip and it works as expected now. Oxygen sensors and breather system replaced. Engine complains of running lean at times but problem is intermittent. Issue would show up when low in gas at higher cruise speeds, then go away after some time. Sheared off a tooth in 1st gear of manual transmission and damaged Syncro. Vehicle was drivable but transmission clicked in 1st gear. Replaced syncro, 1st gear, output shaft to resolve issue. Passenger side engine mount was leaking hydraulic fluid badly. Replaced both left & right engine mounts and also front snub mount. 
Mar 2011

196000 mi
Power Steering started whining when turning at low speeds. Dealer checked power steering fluid level and refilled. PS tank was apparently empty. Instructed to monitor and if noise returns seek repair. 
Jun 2011

197000 mi

US $2500
Car was losing power steering fluid over course of a couple of months. Replaced power-steering rack. MAF Sensor replaced 
Oct 2011

206000 mi

US $3000
Flex Joint damaged and required repair.  Updated rear sway bar and added new bearings for suspension. After-market rear shocks replaced under warranty. 
Jul 2012

213200 mi

US $785
A power-steering line difficult to replace was leaking or allowing air into the system. The system was making the whining noise while turning the wheel and a bubbling/spurting noise behind the steering whee. The line was replaced/fixed. 
Apr 2013

218300 mi

US $1100
A/C would stop blowing cool air after a period of time on high temperature days (90+). A/C was recharged. 
May 2014

233000 mi

US $357
Driver-Rear wheel was leaking brake fluid determined after visual inspection and brake light flashing. Caliper parts were rusted. Replaced caliper and securing bolts. 
Jul 2015

243200 mi

US $890
Power-steering very light at highway speeds. Whining noise with acceleration but not while turning. Intermittent difficult turning at low speeds. Fluid levels ok and no leaks. Determined to be power-steering pump. 
May 2016

247700 mi

US $4300
Engine head gasket and cylinder damage. Vehicle was losing coolant slowly with no visible leaks. Coolant leaking into damaged cylinder. Machine shop repaired damage & additional components replaced as part of repair. 
Dec 2016

253000 mi
Breather hose cracked. 
Audi A4 in Pennsylvania, United States
Feb 2006 - Jun 2011
Jul 2006

62000 mi

US $50
COIL PACK FAILURE. CAR FLATBEDDED TO DEALER 
Jan 2007

70000 mi

US $50
ANOTHER COIL PACK FAILURE 
Mar 2010

77000 mi

US $2000
car stalled while merging on the highway. would not restart. coasted to shoulder. flatbedded to service. car sold upon completion of repair. Car was fun to drive but not dependable. 
Audi A4 in California, United States
Nov 2011 - Jul 2015
Jan 2012

US $400
Vacuum hose connections leaky causing failed emissions testing. One hose broken. Replaced all connectors with screw-type. 
Audi A4 in North Carolina, United States
Mar 2007 - Apr 2020
Jun 2007

85000 mi

US $6000
Engine sludge caused lack of oil pressure which then caused a spun rod bearing which destroyed the internal engine parts. 
Jan 2009

101000 mi

US $100
The plastic piece holding the window to the window regulator broke, so the window would no longer go/stay in the up position. It did stay in place with duct tape on the outside in order to get the car home.  
Oct 2009

107000 mi

US $40
Failed ignition coil. AAA paid for the tow home (wasn't sure how to factor in that potential cost). 
Jul 2010

120000 mi

US $110
MAF sensor failed, bought new one and replaced myself 
Aug 2010

120700 mi

US $8
Found a couple of vacuum leaks in the turbo system. 
Jun 2011

126000 mi

US $300
Sensor in the system replaced, but problem is not fixed yet. Will return to shop in the near future. 
Nov 2011

131000 mi

US $40
A suction pump (vacuum switch) in the PCV system failed and required replacement. 
Mar 2012

135000 mi

US $2000
Power steering rack failed while driving. Had to be towed to the shop. 
Aug 2012

145300 mi

US $200
3rd recharge in 3 years. No leaks found this time around. 
Jun 2013

150000 mi

US $100
The coolant return fitting out of the turbo failed. Quick easy fix. Oil supply line to the turbo was leaking. In retrospect this might have just been a loose fitting, but I replaced the fitting and the line to be safe and avoid fixing something twice. 
Dec 2013

156000 mi

US $100
a mysterious coolant leak that was not able to be replicated. Maybe extreme cold weather related? Problem has not returned since. 
Mar 2014

157000 mi

US $500
Water pump leaking, probably the o-ring, replaced entire assembly and timing belt. Then 2 weeks later my thermostat housing exploded. 
May 2014

160100 mi

US $20
The car would intermittently not shift into gears for a few days. Bleed the slave and clutch which didn't appear to help, though the problem has not returned. 
Sep 2014

168000 mi

US $50
Failed coilpack. Diagnosed with personal pc and had a spare coil in my trunk. 
Dec 2014

170000 mi

US $200
another failed coilpack, so I just replaced all 4 
Mar 2015

172000 mi
hood pull latch broke - just the lever, not the actual cable 
Aug 2016

177000 mi
Had a slow AC leak for a few years, able to get by with recharges. Leak became faster and was found to be a defective AC compressor. Cost $1500 Crankshaft position sensor failed, but intermittently so the car was still driveable at low throttle. Replaced on my own. 
Audi A4 in New Jersey, United States
Feb 2007 - Aug 2011
Mar 2007

54000 mi

US $800
Rear Left Axle seal and Rear Diff Yoke Seal. Both were leaking. Remove both and reinstall new seals with fresh diff fluid. 
Mar 2009

60000 mi

US $90
Replace leaky lower coolant hose. 
Audi A4 in Michigan, United States
Sep 2012 - Mar 2014
Apr 2012

139000 mi
Replaced the wires leading to the coils. The insulation was cracked and they were shorting out on each other. I bought the car this way. I replaced the plugs and coils, too. 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. 
Nov 2012

143000 mi

US $300
No cruise control. Replaced clutch switch Check engine light on. Code for large leak evap. Replaced purge valve and a hose leading through the firewall. Check engine light on. Code for bad cat. Assumed to be from previous owner driving so long with 2 cylinders misfiring. I bought it misfiring and fixed the wiress leading to coils. Cat is bad but runs fine. Have to live with this code. 
Mar 2013

148000 mi

US $280
Oil leaking onto the exhaust and burning off causing a bad odor. Replaced valve cover gasket and cam chain tensioner seal. 
Nov 2013

150600 mi

US $275
Clunk in RF. They replaced a ball joint...I guess there are a couple on each side, but we just did the bad one because the others were done by the previous owner. Bad vibration at idle and the intake system sounds different. not quite as peppy, I found vacuum leaks and replaced the diverter valve and PCV valve. Better but still vibrates. Shop checked all systems...perhaps the flywheel but not sure 
Dec 2013

152000 mi

US $199
Flex pipe broke off. Had a cheap one welded in 
Mar 2014

152000 mi
Clutch went out (was causing the vibrations previously mentioned). The main bearing in tranny is bad and causing the clutch to bind - would not go into gear while running. Sold the car as a project to an Audi guy. 
Audi A4 in Texas, United States
Feb 2007 - Mar 2018
Sep 2007

114000 mi

US $55
crankshaft position sensor (aka vehicle speed sensor) intermittently not working on cold starts, requiring repeated cranks to start the car 
Apr 2008

120000 mi

US $40
Driver's side front outer CV boot cracked. 
May 2008

121000 mi

US $20
Rear coolant flange leaking, replaced with new flange and O-ring. 
Apr 2009

133000 mi

US $12
cam chain tensioner gasket leaking. gasket was removed and replaced. 
Nov 2009

142000 mi

US $80
inner CV boot ripped, axle replaced replaced driver's front CV axle due to torn boot 
Mar 2010

149000 mi

US $100
Water pump failure - impeller separated from shaft, resulting in lack of coolant circulation 
Apr 2011

168000 mi

US $68
hood release cable had stretched to the point it caused the release handle to break. Hood release cable and handle were both replaced 
Mar 2012

182000 mi

US $350
clutch disc worn, replaced 
Jun 2012

185000 mi

US $50
Cam position sensor started throwing codes occassionally, was replaced. 
Dec 2012

192000 mi

US $250
leak in radiator, replaced; thermostat sticking open, replaced 
Mar 2013

195000 mi
replaced rear differential mount 
May 2013

197000 mi

US $500
head gasket leaking. Valve job done on head (seals replaced, etc), all gaskets etc replaced 
Aug 2013

201900 mi

US $250
replaced all rear suspension bushings 
Dec 2013

209000 mi
thermostat sticking open 
Jun 2014

215000 mi

US $75
Oil level sensor began intermittently incorrectly reporting low oil level. Sensor was replaced. 
Aug 2014

215000 mi
left axle seal on rear differential was leaking, replaced 
Sep 2014

216000 mi

US $45
low pressure AC line between condenser and dryer was leaking. Line was repaired with new rubber/crimps 
Oct 2015

223200 mi

US $1500
FOD (foreign object debris) ingested into engine, damaging head and piston #1. Possibly some slag broke off a weld inside the intercooler? 
Mar 2017

235000 mi

US $100
control arm ball joint was worn, replaced 
Audi A4 in Pennsylvania, United States
Dec 2006 - Mar 2010
May 2007

69000 mi

US $50
rough idle due to the front O2 sensor. 
Jun 2007

69000 mi

US $367
intermitant rough idle. dealer replaced the MAF under warantee but the problem still exist. they cleaned the throttle at cost to me. replaced the skeleton for the lumbar in the driver's seat. 
Aug 2007

73000 mi

US $260
-O2 sensor once again. -spark plugs for some strange reason were red at the tips. -rough idle 
Audi A4 in Michigan, United States
Apr 2012 - Apr 2013
Apr 2013

172000 mi

US $550
E-brake cable bound, preventing release of brakes 
Audi A4 in Georgia, United States
May 2007 - Jun 2022
Jul 2008

101000 mi

US $150
Coil pack failure on cylinder #1. Replaced all 4 coil packs due to the large difference in the revision of the part. Had version L replaced with version R 
Dec 2008

106000 mi

US $100
Small leak in Evap system. The gas tank has a crack or defect on the top of the tank. Purchased a used tank. Awaiting time to install. 
Oct 2009

121000 mi

US $900
Gas tank had a failure point. causing evap system error. New tank corrected problem. 
Feb 2010

125000 mi
P0420 catalytic efficiency. Purchased new front O2n sensor. Awaiting install. 
Apr 2010

127000 mi

US $88
Replaced front O2 sensor 
Jun 2013

130000 mi

US $430
Replaced the engine speed sensor.....after 3 years it was hard to start the car without it :) 
Aug 2013

131200 mi

US $130
2 coil packs failed. Replaced all 4 due to new revision of part. 
Dec 2013

137000 mi

US $400
Motor mount failed. Liquid inside mount oozed out. Both motor mounts replaced with solid rubber design. 
Mar 2014

141000 mi

US $20
Cat inefficient error - clogged Cat. Replaced cat. Dipstick funnel failed. 
May 2014

143000 mi

US $100
Replacement of suction pump, bleeder valve and pressure control valve. 
Aug 2014

144000 mi

US $100
Rear O2 sensor replaced. Code for faulty heating element 
Feb 2015

150000 mi

US $800
Oil pan seal was leaking Rear differential axle seal 
Sep 2015

155000 mi

US $145
Car would randomly not start after leaving parked in the garage overnight. Aftermarket battery was not the correct battery for the car. 
May 2017

157000 mi

US $2000
Original clutch shattered. With 156k miles on it, it was on borrowed time. Replaced with aftermarket clutch. 
Oct 2017

157200 mi

US $2200
Syncro failed for 4th gear. Could not shift normally into 4th gear. 
Audi A4 in Massachusetts, United States
Sep 2011 - Jan 2013
Oct 2011

91755 mi

US $90
Coil pack D failed causing misfire. Replaced Coil pack. Replaced one front headlight and both front blinkers. Blinkers failed due to burnt connections, fixed with an electrical sealant to keep out moisture. Replaced Hood Lift support. The old one was not holding the hood up. Replaced Hood Lift support. The old one was not holding the hood up. Replaced missing front lower valence/spoiler 
Apr 2012

98700 mi

US $30
engine speed sensor /engine crank position sensor failed, and was replaced 
Jan 2013

110000 mi

US $500
Car began blowing a lot of white smoke out of exhaust. Problem was either Head gasket or Oil Cooler. Both were replaced. 
Audi A4 in Colorado, United States
Oct 2009 - Jun 2012
Jan 2009

85000 mi

US $1200
Leak in power steering. EStimate is about $1200 to replace rack. So far, I have just topped off the fluid. Haven't had to add more in about 6 months. 
Nov 2009

93000 mi

US $400
Driver window mechanism broken. Had to be replaced. Driver window mechanism repair 
Dec 2009

95000 mi
Check engine light code indicated a problem with the thermostat or sending unit. Code reset and will see if problem re-occurs. 
Feb 2010

96000 mi
Check engine comes on. Code indicates a problem with either the thermostat or sending unit. Light goes off on its own after a week or so. Shop couldn't pin down exact cause. Headlight bulb replaced. windshield washer fluid leak near front of car. Shop couldn't pinpoint location. Tubes looked good. Could be headlight washer pumps which are too expensive to repair. 
Aug 2010

105300 mi
Sunroof opens fine, but sometimes stops on closing. I have to open all the way and re-close. Shop thinks problem is in the switch, a $330 part. 
Oct 2010

106000 mi

US $210
Engine temp sensor failed. Car difficult to start when engine was cold because sensor was telling computer that the engine was at 80 degress instead of 40 or so. 
Sep 2011

111000 mi

US $850
Car would lose power. Could only go about 15 MPH. I replaced the throttle body. The problem took a couple days to diagnoise. 
Jun 2012

115000 mi
Never replaced faulty sunroof switch. 
Audi A4 in New Mexico, United States
Sep 2006 - Mar 2010
Feb 2009

58000 mi

US $90
Noticed noise in transmission. Owner's manual no help, ordered repair manual from online vendor. Transmission fluid was low. Got fluid from online dealer. Filled fluid reservoir, noise disappeared. Drove awaiting manual arrival, then not til fluid came. 

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2002 Audi A4 4dr Sedan

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

Audi A4 in California, United States
Nov 2009 - Dec 2013
Jul 2013

89500 mi

US $4000
variable transmission was jerky at low speed and something slided out of gear altogether. 
Dec 2013

92000 mi
Transmission never fixed. 
Audi A4 in Florida, United States
Oct 2003 - Feb 2011
Oct 2003

20500 mi
coolant leak. Replaced valve 
Dec 2004

40500 mi
replaced radio 
Apr 2005

46631 mi
replaced catalytic converter 
Jul 2005

49582 mi
speakers go in and out in volume. Installed felt strips in all 4 doors. 
May 2007

78500 mi

US $1050
Replaced faulty Combu Valve 
Jun 2007

79000 mi
Replaced catalytic converter 
Nov 2007

86500 mi

US $50
Sunroof would randomly tilt open and close during driving. Dealership replaced a switch. Replaced sun roof switch 
Dec 2007

88000 mi
Snub motor mount was bent and replaced during scheduled timing belt change at roughly 87500 miles. 
Audi A4 in North Carolina, United States
Jun 2007 - Oct 2013
Sep 2007

67000 mi

US $230
Water pump failed. Engine ran hot and was shut off before permanent damage could occur. Car was towed to a local shop, but they were not equipped for the repair. They towed the car to the Dealership. Dealership replaced the water pump and timing belt. Check engine light was on for two weeks. Local auto parts store reset the light, it came back on after 3 days. While in the shop for problem 1, shop said they think problem 1 caused problem 2. They reset light but repaired nothing. Had to take car bac Check engine light on (as mentioned in problem 2 of trip 1). Light reset during trip 1. Light came on 3 days later. Went back, sensors bad, replaced sensors, problem solved. 2 weeks later light has not come back on. After getting car back from trip 1, washer fluid light came on. I refilled with 1 gal of fluid. Took back for trip 2, got it back, fluid low again. Shop says they filled it both times. Looked at it on 3rd trip, pump leaking, replaced, problem solved. 
Nov 2009

106600 mi
Coil failed, car was undriveable. Towed to dealer, they notified me that a recall had just gone out on the coil and replaced it for free. Happy me :) 
Jan 2011

112500 mi

US $80
Thermostat completely failed in the open position. Car drove fine but would take 20+ minutes to warm up. Did not notice the problem until the weather got ready cold. 
Nov 2011

142000 mi

US $300
Engine stalled, would not maintain idle without foot on throttle. Multiple codes, 2 O2 sensors intermittently giving trouble for years could be causing them. 3 sensors replaced at my request (due to reduced labor cost of the 3rd sensor). Same problem a week later, engine stall. Shop said ETC sensor giving readings that "didn't make sense" and suggested it be replaced. I requested shop replace the ETC sensor and fuel filter (it was overdue anyway). 
Dec 2011

143000 mi

US $180
Same prob another week later, engine stall. Shop gave an OBDII recorder to get more info. MAF sensor throwing bad data, shop advised replace sensor and wiring. Engine ran smoother when it was disconnected. Sensor and wiring replaced. Same problem as before. Advised shop that no routine maintenance had been performed since about 80k miles, other than oil and tires. Shop checked regular maintenance items, found two bad spark plugs and 4 poor plugs. Replaced plugs. 
Feb 2012

146400 mi
Stalling again, but this time could find nothing wrong and problem is gone again. 
Oct 2012

158800 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. 
Oct 2013

179000 mi
MIL thrown for both cat banks. Did a $150 fuel system service and cleared codes. Ran fine for a few weeks, then codes came back. Power to trunk lid never entirely fixed. 
Audi A4 in California, United States
Sep 2008 - Jul 2012
Jul 2012

137000 mi
internal coolant leak diagnosis in March, sold in July 
Audi A4 in Florida, United States
Jul 2010 - Feb 2016
Sep 2010

104000 mi

US $300
Front Driver Axle cracked at joint. Grease spilled out of joint. Car vibrated while accelerating and made occasional squeaks at point of damage. Front axle was replaced and problem solved. 
Feb 2011

105000 mi

US $550
Overhead gasket seal was old and leaking. Caused engine to misfire. 
Oct 2011

114000 mi

US $450
Car running rough fan running a lot. Drove it with check engine light (CEL) for a month~ code was for a temp sensor. Next, car vibrated and CEL began to flash. towed to shop. replaced temp sensor, hoses, and one coil pack. Fixed 
Feb 2016

164000 mi
Valve cover gaskets leaking. Second time. They were replaced in 2010. 
Audi A4 in California, United States
Nov 2008 - Feb 2009
Jan 2009

US $503
Power steering pump. 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

Audi A4 in California, United States
Sep 2007 - Sep 2012
Mar 2007

95000 mi

US $1800
Replace timing belt Repair broken glove box 
Sep 2009

123000 mi

US $400
Replace rear shocks and shock mounts 
Nov 2009

131000 mi

US $580
Replace right front axle Replace rear brakes 
Audi A4 in New Jersey, United States
May 2014 - Aug 2015
Jun 2015

135000 mi

US $150
Oil pressure light would come on intermittently. Replaced the sending unit and oil filter. 
Aug 2015

135000 mi
Leaking PS fluid 
Audi A4 in Utah, United States
Sep 2010 - Aug 2011
Nov 2010

75000 mi

US $627
CEL was constantly illuminated but the drivability of the car was normal. Repair was done by mechanic free of charge due to previous error during a pre-purchase inspection. Cost of parts/labor was $1000+. Cause: secondary air injector. 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. 
Jul 2011

86000 mi

US $220
I had a faulty oil level/temp sensor replaced. 
Audi A4 in California, United States
Dec 2011 - Sep 2020
Jan 2012

167000 mi

US $500
replace control arms (all front) 
Dec 2013

153000 mi

US $1000
Water pump, timing belt, pulleys, tensioners, oil seals on pas. side cam adjuster, coolant O ring on temp sender, oil, oil filter, air filter, spark plugs, drive side motor mount (all replaced this year). 
Aug 2014

162000 mi

US $500
replaced shocks 
Nov 2014

165000 mi

US $70
coolant leak from connection between flange and hose going to heater core. 
Dec 2015

180000 mi

US $200
replace leaking vacuum hoses, PCV valve and fuel pressure regulator. 
May 2017

195000 mi

US $200
Replace radiator, oil change, replace snub mount. Replaced rear rotors and pads. Flushed brake fluid. 
Jun 2017

196000 mi

US $200
Replaced headliner 
Audi A4 in Iowa, United States
Jan 2015 - Nov 2015
Nov 2015

187000 mi
Engine light on for catalytic converter. Ran fine, though. 
Audi A4 in New Jersey, United States
Oct 2009 - Apr 2012
Mar 2010

195000 mi

US $600
Emergency Brake cable repaired 
Mar 2011

225000 mi

US $550
Front driver side Ball bearing replaced. 
Apr 2011

230000 mi

US $550
Other front Ball Joint went 
Audi A4 in Wisconsin, United States
Sep 2007 - Sep 2009
Aug 2008

63000 mi

US $200
Both horns needed to be replaced. 
Dec 2008

65000 mi

US $200
Engine water temp sensor was replaced. Windshield wiper are assemblies both broke (at separate times) and were completely replaced 
Apr 2009

68000 mi

US $300
2 of 6 ignition coils bad. Shop recommended replacing all 6, which was done. 2nd time since car was new that this had to be done. Hose came off of emission control fan, causing high pitched turbo-like whine for up to 30 seconds, intermittently and mostly on engine cold start. Mechanic discovered and reattached hose at no charge while diagnosing problem #1 
Audi A4 in Virginia, United States
Feb 2009 - Sep 2013
Mar 2009

75000 mi
Catalytic Converter replaced under emissions warranty. 
Dec 2009

87000 mi

US $550
Oil Leak from Right Valve Head Cover; replaced L&R Valve Head Covers. Replaced serpentine belt & tensioner. 
Apr 2010

90000 mi

US $175
Car would crank at start but not fully turnover; mechanic unable to Dx problem; however, works fine now. 
Jun 2010

91000 mi
Replacement of coolant sensor; caused CEL and engine fan to power on during cold starts; also responsible for controlling fuel mixture entering the cylinders. 
Mar 2013

128000 mi

US $800
Replaced all 4 oxygen sensor; sensors had been running sub-standard performance for > 1 year. Replaced OEM sensors x 4 with after-market sensors. Issue diagnosed via owner's VAG-COM. Alternator failure. Replaced OEM alternator with after-market. 
Audi A4 in Connecticut, United States
Feb 2008 - Mar 2015
Apr 2009

118000 mi

US $700
EPC and traction control light came on randomly causing intermittent loss of power, and hesitation. 
Aug 2009

121000 mi

US $974
throttle body sensor replaced Also had routine 120k svc 
Dec 2010

141000 mi

US $230
clutch position switch 
Mar 2011

145000 mi

US $2000
balance fly-wheel broken and shifter-linkage along with clutch 
Apr 2011

146000 mi

US $450
windshield wiper control unit failed 
Aug 2012

158100 mi

US $200
all windows did not go down; wiring harness to drivers door replaced 
Nov 2014

183000 mi

US $400
coil pack replacement - one bad but all 6 replaced 
Feb 2015

188000 mi

US $1500
Needed replacement of entire steering rack 
Audi A4 in Virginia, United States
Sep 2006 - Jun 2011
Dec 2008

69000 mi

US $800
The A4's ignition coils crapped out AGAIN plus spark plugs, vacuum lines, throttle plate cleaning and lots of other labor charges to replace coils & plugs. 
Dec 2009

74000 mi

US $2000
New front control arms installed - had failed after 7+ years driving on city roads. 
Aug 2010

79000 mi

US $1400
Brakes, ignition coils (again), minor bodywork 
Sep 2010

90000 mi
ignition coils went again within 1 month of new ones installed; I sold the car the day I picked it up from the shop 
Audi A4 in Latvia
Sep 2014 - Sep 2014
Sep 2014

164300 mi

€50
Fuel nozzle rubbers was replaced. 
Audi A4 in British Columbia, Canada
Apr 2009 - Jun 2022
May 2009

70680 mi

C $409
Slightly leaking seal at rear drive shaft of transmission. Transmission oil replaced & seal conditioning additive added after shop felt that the seal replacement might cause additional problems. I have not yet been able to check if the seepage has stopped 
Jun 2009

73160 mi

C $600
Rear Transmission seal still leaking after May's repair by other shop. In shop for 2 days because all parts to repair not ordered. 
Jul 2009

75640 mi
Returned from vacation to find that seal still leaking, but all required parts were not in stock. Will have to return to repair again. 
Aug 2009

77500 mi
Dealer replaced seal again, under repair warranty. So far, so good. 
Dec 2009

82460 mi
Engine started missing badly, then Check engine light started flashing. Diagnosed as failed ignition coil. Dealer replaced all 6 ignition coils per Audi Canada Voluntary Emissions Service Action 28F2/J1 Ignition Coil Inspection/Replacement. 
Feb 2010

84180 mi
While the car was in to have the ignition coils replaced in Dec., the mechanic at the Dealership performed an overall inspection & discovered that the rear transmission seal was leaking, yet again. Repaired at no cost due to failure of prev. repair. 

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2002 Audi A4 4dr Sedan

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

Audi A4 in Ohio, United States
Oct 2013 - Jul 2014
Jul 2014

202000 mi

US $76
Fuel pump failed and was replaced 
Audi A4 in Tennessee, United States
Nov 2008 - Nov 2013
Dec 2008

44000 mi

US $150
Coil pack on one cylinder. Will probably replace the rest myself as they are a problem for many Audi 3.0 owners. 
Mar 2010

50000 mi

US $2000
Trans computer replaced along with tiptronic switch circuit board 
May 2010

50900 mi

US $2000
Tiptronic switch and circuit board replaced. Trans would not shift from park to any other gear without starting the car in Neutral and forcing it to shift. 
Feb 2012

58000 mi

US $575
Replaced left rear caliper which was leaking. Also did rear pads at that time. 
Sep 2012

59000 mi

US $50
Coolant temp sensor 
Nov 2013

64000 mi
leaking cam seals, collapsed valve tappet 
Audi A4 in Massachusetts, United States
Apr 2008 - Mar 2010
Mar 2008

75000 mi

US $2800
Had to replace one of the overhead cams which the dealer said was a common repair for this car 
Audi A4 in Pennsylvania, United States
Nov 2011 - May 2022
Jul 2012

110700 mi

US $25
whenever driving above 65MPH with slight uphill, i feel a little kick. went to dealer and got a code for torque converter (P0741) which needs to be replaced. 
Feb 2013

119700 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. 
May 2013

125100 mi

US $275
the front right window regulator had to be replaced as the regulator cable wear out. 
Jan 2014

121800 mi

US $557
the Drive shaft need to be replaced after noticing knocking sound while driving and also the car vibrate at low and high speeds. I got a used one for $250 instead of paying $1600 for the new one. 
Apr 2014

146000 mi

US $295
The turning signal switch got replaced. 
Aug 2014

150400 mi

US $250
the front right wheel hub was giving loud noise and in need to be replaced. 
Oct 2014

153200 mi

US $109
the cupholder did broke and was replaces by a genuine one from online seller ( $84.00). 
Apr 2015

163000 mi

US $910
the front left wheel bearing needed to be replaced. Also, discovered that the front upper front and front upper rear control arms needed to be replaced. the left rear window regulator needed to be replaced. 
Mar 2016

186000 mi

US $160
Oxygen sensor bank 1 has to be replaced. 
Apr 2016

187000 mi

US $40
coolant sensor had to be replaced. 
Dec 2016

210000 mi

US $738
replaced driver's side wheel bearing due to noise. serpentine belt tensioner and serpentine belt was replaced. front left inner CV boot was replaced. 
Feb 2017

214000 mi

US $522
There was a humming sound when making turns. It was thought to be the steering rack but turned to be the power steering pump. The rear differential seal was seeping and had to be replaced. 
Mar 2017

216000 mi

US $100
The parking brake seemed to get stuck couple of times. One of the (may be called hoops) was frozen. Got some WD-40 and all is back to normal. The passenger's side headlight washer jet in the front bumper was loose where its screws seemed missing and had to be fixed back in place. 
May 2017

218000 mi

US $263
After having the CEL on for many years, crankcase vent valve got replaced. The CEL went off for a day then came back on again. When scanned, it showed code P0441 (evaporative emission system/ incorrect purge flow). 
Nov 2017

238000 mi

US $720
the water pump did fail ,though was replaced back in February, and had to be replaced. Also, after getting the anti-freeze fluid every where the power steering pump did fail also and was replaced. 
Feb 2018

244000 mi

US $40
the brakes [brake lights] used to stay on. Brake switch got replaced from an old beetle. 
Mar 2018

245000 mi

US $70
rear brake rotors and pads replaced. License plate light wasn't working due to broken wires. Wires replaced and a new bulb was put on. Passed inspection. 
Apr 2018

246000 mi

US $50
Front rotors replaced. 
Jun 2018

250000 mi

US $614
the dual radiator fans were making loud noise and had to be replaced. Got used ones for $120. Leaking valve cover gaskets had to be replaced. misfire in cylinder 6. a coilpack had to be replaced. 
Oct 2018

256000 mi

US $330
the right parking brake cable did seize many times so I had it, with the left side, replaced. 
Dec 2018

262 mi

US $152
misfire in cylinder 1, Delphi coil replaced by old Audi one. Also, discovered the valve cover gaskets were leaking. 
Jan 2019

263998 mi

US $140
Valve cover gasket at the passenger's side was replaced ($ 50 for the part). 
Feb 2019

265571 mi
Front brakes were replaced. 
Apr 2019

270990 mi

US $460
Inner driver's side CV boot was leaking. Got a new one from FCP. Box flex pipes were replaced. 
Jan 2020

287899 mi
Fuel pump replaced. 
Audi A4 in California, United States
Jan 2007 - Mar 2016
Dec 2010

130000 mi

US $162
Temperature sensor failure caused fan to run at high speed at cold start. Part was replaced. Hood failed to remain open. Replaced Hood Strut 
Jan 2011

130000 mi

US $464
Drive belt tensioner failed. Belt tensioner, multi rib belt and expansion tank cap replaced. 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. 
Mar 2011

134000 mi

US $1157
Water pump bearing starting to fail. Water pump and timing belt replaced. 
Feb 2012

148000 mi

US $1800
Catalytic converter fault Torque converter fault. slippage faulty brake light switch 
Apr 2012

151000 mi

US $4200
Catalytic converter Bank 1 (Feb was bank 2) Torque converter slippage. seal failure 
Feb 2013

164000 mi
fuel pump failure one fuel cell failure. Chargable only to ~10.5V 
Sep 2013

174000 mi
Malfunction Indicator Light was intermittently flashing near 170000 miles. Usually occurred when coasting on flat or downhill at highway speeds. Issue disappeared before mechanic could check. 
Jun 2014

185000 mi

US $2600
intake manifold gasket and associated tubing replaced. (engine did not turn) rnwater temp sender and o-ring and spark plugs 
Sep 2014

190000 mi

US $200
Left headlight blown. Right headlight heavy flickering. Both headlight bulbs replaced. 
Dec 2014

195000 mi

US $600
Sheared Driver CV Boot. Motor Mount (Front/Snub) crack. 
Audi A4 in Montana, United States
Dec 2007 - Jan 2009
Jan 2008

59000 mi

US $1635
Software update: $135 Long overdue, apparently misfires were occurring that caused supplemental check engine codes along with the cat replacement.  Intake manifold: $1500. Repairs done due to a plastic rattle sound from intake manifold changeover mechanism that rattled in its seat during med-hard acceleration until intake changeover at 4200rpms. Cat replacement: covered under extended emissions warranty 8yr/80K but costs was quoted at about $1200 Caused by intermittent check engine light for a bank 2 O2 sensor code . 
Audi A4 in North Carolina, United States
Sep 2006 - Nov 2010
Dec 2006

43000 mi
rear brake light was off, shop replaced at no cost 
Mar 2009

65000 mi
Gearshift inoperative. 
Audi A4 in Rhode Island, United States
Feb 2010 - Jun 2011
Apr 2010

130000 mi

US $250
The wheel bearing was off and needed to be fixed 
Audi A4 in Massachusetts, United States
Sep 2008 - Oct 2011
Apr 2008

59000 mi

US $1000
timing belt. Belt had to be replaced because it was giving us trouble, this was unusual according to the dealer...belt looked to have been run very hot for extended periods of time, possibly an LA car or other metro location? 
Jan 2010

76000 mi

US $22
OEM ignition coilpack failed on cylinder #4. Drove to dealer adn all 6 were replaced under pending recall. 
Oct 2010

83000 mi

US $50
Changed out oil level sensor to alleviate "Bad Oil Level Sensor" message on car's diagnostic display. 
Mar 2011

85000 mi

US $150
Left rear caliper locked shut and needed to be replaced. 
Audi A4 in Virginia, United States
Apr 2008 - Jun 2014
Nov 2008

86000 mi

US $80
Left Inner CV Boot torn. Replaced Inner and outer CV boots.  
Jun 2009

94000 mi

US $5500
Catalytic Converters (L & R) Torque Converter replaced 
Aug 2010

104200 mi

US $608
Noticed vibration in Front end 25MPH on up. Vibration feels like wheel out of balance. 
Apr 2012

117300 mi

US $1000
Replaced RF CV boots (Inner and Outer). Replaced RF upper links bushings, and replaced LF tie-rods (Inner and Outer). Four wheel alignment, wheel balance & rotation done. 
Audi A4 in Florida, United States
Mar 2014 - Apr 2014
Apr 2014

110000 mi

US $20
replaced ignition coil 
Audi A4 in Ohio, United States
Aug 2008 - Dec 2015
Feb 2015

136900 mi

US $600
Replaced all engine mounts. 

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2002 Audi A4 4-door

turbocharged 6-cylinder automatic AWD

Audi A4 in Virginia, United States
Feb 2007 - Mar 2010
Mar 2007

41000 mi

US $50
It took 3 trips to accurately diagnose the problem as a pinhole in the cylinder head. The repair was JB Weld and is currently holding although I don't feel that it was appropriate. I think the head should have been replaced. 

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2002 Audi A4 4-door

turbocharged 4-cylinder diesel manual 2WD

Audi A4 in South Africa
May 2010 - Jun 2012
Aug 2010

116560 mi

R 2600
water temp sensor faulty upper C links on steering replaced  
Jan 2011

119660 mi

R 350
driver door wiring connector. wires cracked from door opening and closing, causing window to stop working. no error lights 
Dec 2011

126480 mi

R 12000
Tandem pump leaking, also replaced front disks and pads, timing belt and water pump 

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2002 Audi A4 4-door

turbocharged 4-cylinder manual AWD

Audi A4 in Missouri, United States
Jul 2007 - Sep 2008
Sep 2007

US $86
Replaced valve cover gasket due to oil found on ignition coil and spark plug in cylinder #2. Three of four ignition coils needed to be replaced. Sold car. 
Audi A4 in Oregon, United States
Jun 2007 - Jan 2008
Aug 2007

53000 mi

US $600
breather hose from the intake manifold to suction pump/breather valve cracked 

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2002 Audi A4 4-door

turbocharged 4-cylinder manual 2WD

Audi A4 in Nevada, United States
May 2007 - Mar 2010
Aug 2007

64000 mi

US $50
Coolant flange replaced. 

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2002 Audi A4 4-door

turbocharged 4-cylinder automatic AWD

Audi A4 in Georgia, United States
Oct 2007 - Mar 2010
Feb 2008

72000 mi

US $500
Coolant leak. 
Audi A4 in Iowa, United States
Jan 2007 - Sep 2007
Feb 2007

50000 mi
Headlight windshield washer pump failed 
Aug 2007

52000 mi
Coolant Sensor Malfunction Transmission sensor failed causing tranmission to default to "limp home" mode. 

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2002 Audi A4 4-door

6-cylinder automatic AWD

Audi A4 in Texas, United States
Jan 2008 - Mar 2010
Feb 2008

68000 mi

US $510
Front upper control arms replaced, along with tie rod ends and sway bar links. 
Mar 2008

71000 mi

US $210
Steering rack replaced. Alignment done. 
Dec 2008

81000 mi

US $700
New shocks to replace leaking originals. Upgraded shocks to koni FSD. replaced all front control arms. 

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2002 Audi A4 4-door

4-cylinder manual 2WD

Audi A4 in South Africa
Sep 2010 - Jul 2013
Dec 2010

119040 mi

R 3000
Oil leak - found pcv pipes cracked. replace all. 
Mar 2011

120900 mi

R 7300
Hose connector at the back of the cylinder head replaced 
Jul 2012

132060 mi

R 850
Alarm siren kept going off 
Jul 2013

137020 mi

R 350
Metal pipe corroded. Replaced temp sender unit 

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2002 Audi A4 4-door

4-cylinder automatic AWD

Audi A4 in Colorado, United States
Jun 2007 - Mar 2010
Jul 2007

60000 mi

US $1900
Water pump was leaking and needed to be replaced; replaced the timing chain also b/c it's recommended to be changed at 90K miles & have to change the water pump at that change also -- planning on keeping the vehicle, so it was prudent 

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2001.5 Audi A4

Engine not specified

Audi A4 in Colorado, United States
Sep 2011 - Dec 2013
Dec 2011

150000 mi

US $501
EGT sensors and throttle body boot 
May 2012

155000 mi

US $700
previous control arm work was faulty and needed repair also received an alignment new brake pads 
Dec 2013

176000 mi

US $330
misfire -- coil pack replaced 
Audi A4 in New York, United States
Dec 2008 - Mar 2010
Jan 2009

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

Audi A4 in Colorado, United States
Mar 2011 - Mar 2012
Feb 2012

122900 mi

US $400
Replaced cat-back after hangers rusted off on old system 
Audi A4 in California, United States
Mar 2011 - Dec 2012
Oct 2011

191800 mi

US $120
turn signals (relay) 
Audi A4 in Georgia, United States
Jan 2014 - Jun 2022
Apr 2015

176000 mi

US $900
Driver's side exhaust cam, and exhaust lifters had to be replaced, along with the cam adjuster. It appears that the 1 lifter failed. 
Oct 2015

182000 mi

US $45
Crank position sensor was replaced. 
Feb 2016

187000 mi

US $80
Replaced the passenger side inner-boot, on the CV joint. Airbag control module had a fatal error, and had to be shipped out to an airbag control module repair company. 
Mar 2016

187000 mi
Cup holder no longer worked, it would not open up out of the dash. 
Aug 2016

192000 mi

US $525
After 110k miles I needed to replace all 4 rotors and pads. Also had to replace the rear calipers. 
Jan 2017

183700 mi

US $415
Original lower control arms and tie rod ends(outer) replaced 
Apr 2017

187000 mi

US $65
-swaybar bushings -swaybar end links 
Jun 2017

197000 mi

US $80
Inner tie-rod ends replaced. 
Oct 2017

201000 mi

US $600
Oil/filter change P.S. outside C.V. boot 034 Snub mount 02 sensor (p.s.) 
Dec 2017

201000 mi

US $500
rebuilt passenger side stern motor mount trans mounts(Apikol) rear diff mount(Apikol) rear diff bracket bushings(Apikol) 
Apr 2018

204000 mi

US $350
-D.S. swaybar mount/bushing -D.S. motor mount/swaybar mounting bracket TB kit from Pure MS *Audi water pump was leaking(weep hole) after 39k miles 
Jun 2018

205000 mi

US $100
Mechanical fan clutch replaced Fan temperature sensor replaced 
Dec 2021

218000 mi

US $100
Ignition lock cylinder replaced due to a lack of starting issue. Starter would not turn over, unless I moved the steering wheel back/forth to engage the steering wheel lock. 
Jan 2022

218000 mi

US $1200
Pressure plate failed causing the slave to fail. Replaced clutch. 
Audi A4 in Florida, United States
Sep 2006 - Jan 2024
Nov 2006

38000 mi

US $50
Valve cover gasket was bad, causing leak to occur. Auto-dimming rear view mirror went bad Steering exhibits creaking noise when turing left. Also exhibits creak on right too, but lesser so. 
Dec 2006

39000 mi
Autodimming mirror replaced 
May 2007

41000 mi

US $80
Fuel gauge sender unit went bad 
Aug 2007

41000 mi

US $600
Bad steering arm. Replaced pair of arms. 
Dec 2007

44000 mi
Broken vacuum hose 
Feb 2008

45000 mi

US $40
Flasher relay went bad. 
Mar 2008

46000 mi

US $600
Camshaft tensioner seal leaking oil. Replaced seal. 
Apr 2008

46000 mi

US $300
Exhaust Gas Temperature Sensor. 
Feb 2009

51000 mi

US $700
Replaced upper control arms (loose fittings) Bad temperature sending unit. 
Jul 2010

59000 mi

US $600
Replaced auxillary water pump (sometimes called after run cooling pump) Cracked coolant tank replaced CV boot replaced 
Nov 2010

60000 mi

US $300
Replaced whining fuel pump 
Mar 2012

69000 mi

US $25
Coolant temperature sensor bad. Replaced temperature sensor. Exhibited bad starting as source of problem. 
Jun 2012

71000 mi

US $500
Oil level sensor bad, replaced CV Boot torn, replaced Hood strut failed, replaced 
Aug 2013

78300 mi

US $2000
Replaced all 8 control arms Alternator failed, replaced All brake lines were showing signs of dry rot. Replaced Master cylinder cracked, leaking. Worn tie rod ends, replaced. 
Dec 2013

80000 mi
Coolant sensor leaking 
Sep 2014

83000 mi

US $960
Replaced vacuum hose assembly Replaced valve cover gasket Replaced battery - dead 
Nov 2014

84000 mi

US $650
Replaced blown hose between rack and pump Heater core required flushing 
Mar 2015

86000 mi

US $1200
Leaking coolant hoses Leaking camshaft seal 
Jun 2016

91000 mi

US $600
Several cooling hoses leaking, replaced Windshield wiper pump cracked, replaced 
Feb 2017

95000 mi

US $300
Replace valve gasket 
Jun 2017

96000 mi

US $850
New steering pump and hose 
Feb 2018

98000 mi

US $200
Dead battery. Replaced. 
Jul 2018

100000 mi

US $2000
Replace struts/shocks Replace exhaust gas temp sensors 
Aug 2023

137000 mi

US $4500
New clutch 

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2001.5 Audi A4 4dr Sedan

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A4 in New York, United States
Oct 2012 - Jan 2015
Feb 2014

45000 mi

US $800
frozen rear caliper. replaced both rear calipers, replaced rear brake lines, bled and refiled brake fluid, new brake pads 
Jul 2014

45000 mi

US $100
AC not cooling sufficiently. Just needed a recharge. No leaks were found. 
Aug 2014

45300 mi

US $500
broken Vacuum for central locking 
Audi A4 in Massachusetts, United States
Sep 2013 - Jul 2018
May 2015

163900 mi

US $285
Wheel bearing 
Jun 2015

165000 mi

US $142
replace door speaker 
Jul 2015

165200 mi

US $1095
replace pads, caliper and e-brake cable 
Jun 2017

173000 mi

US $500
calipers were sticking and were replaced 
Audi A4 in Manitoba, Canada
Aug 2009 - Sep 2013
Jun 2009

81220 mi

C $50
Repair Coolant Leak 
Sep 2009

37200 mi

C $259
Aux Coolant pump failed. 
Jan 2010

44140 mi
Coolant expansion tank developed leak. 
Mar 2012

49600 mi

C $5000
Transmission was noisy in first gear. Replaced with re-manufactured unit. 
Audi A4 in Colorado, United States
Aug 2011 - Oct 2011
Sep 2011

123000 mi

US $900
Turbos sealed and turbo vacuums replaced.  
Audi A4 in Arizona, United States
Jan 2009 - Dec 2012
Feb 2009

111000 mi
I could smell burning oil when the heat or ac was on. One of the valve cover seal and camshaft seals were shot leaking oil. 2.7T 
Oct 2012

148300 mi
Blown passenger side turbo had big turbo kit installed. 
Audi A4 in Colorado, United States
Dec 2008 - Mar 2010
Jan 2009

108000 mi

US $584
Front upper control arms both sides. 
Feb 2009

108000 mi

US $550
Front upper control arms replaced. 

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2001.5 Audi A4 4dr Sedan

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

Audi A4 in Ontario, Canada
Aug 2012 - Dec 2015
Oct 2012

86560 mi

C $500
Front control arms including tie rod ends were changed. sub-sequential wheel alignment required 
Jan 2013

92460 mi
Cleaned up corrosion in wiper assembly, common in cars because white metal wiper studs pressed into brass fittings. Pulled motor and assembly out, pressed wiper studs apart, cleaned & greased all contact & joining parts. audiworld.com/tech/misc44.shtml 
Jun 2013

102920 mi

C $100
replaced rear callipers (one seized)and all rotors and pads A/C recharge required 
Jul 2013

103720 mi

C $55
Left rear wheel bearing (last replaced 30,000km ago) 
Dec 2013

113460 mi

C $130
Replaced both front oxygen sensors and one ignition coil. All other ignition coils will require changing in the near future 
Mar 2014

117800 mi

C $400
rear passenger wheel bearing (driver side replaced 9 months prior). These appear to be a high wear item on this vehicle 
Aug 2014

124620 mi

C $30
leaking aux. water pump. Replaced with new replaced exhaust clamp as old one rusted. 
Oct 2015

128340 mi
diverter valves changed 

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2001.5 Audi A4 4dr Sedan

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

Audi A4 in Pennsylvania, United States
Nov 2009 - Mar 2010
Dec 2009

57000 mi

US $400
Seal damaged to rear drive. 

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2001.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

Audi A4 in Sweden
May 2009 - Aug 2014
Jun 2009

114700 mi

$1300
Oil sludge in engine. Clogged oil pump pickup. Lost oil pressure. Use correct motor oil!!! 
Oct 2009

116560 mi
leaking onto passenger side floor, plenum drain holes probably clogged. 
Jun 2011

124620 mi

$300
front brake hoses replaced 
Dec 2013

135160 mi

$2000
Parking brake broken. replaced cables. both rear calipers were bad along with the discs and brake pads. All parts were replaced. 
Jun 2014

137020 mi

$300
rear brake line broke during yearly inspection. replaced brake line. 
Aug 2014

137020 mi
Would not start. Timing belt skipped is what mechanic said. Tired of problems with this car so I sold it without repair. 

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2001.5 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

Audi A4 in Virginia, United States
May 2011 - Jul 2011
Jul 2011

118000 mi

US $350
O2 sensor and EGT sensor on the driver side replaced.  
Audi A4 in Colorado, United States
Feb 2010 - Jun 2014
Feb 2011

170000 mi

US $300
Oil leaking slowly from cam tensioner seal. Intermittent oil burning smell in the cabin. Replaced cam tensioner seal.  
Jan 2013

171500 mi

US $20
Brake pad light was illuminated although brake pads are not in need of replacing. Sensor wiring is damaged in wheel well. Circuit jumped to remove warning light. 
Jul 2013

190000 mi

US $200
Control arm worn and in need of replacement. Part replaced. 
Dec 2013

194000 mi

US $150
Thermostat replaced Oil Level Sensor replaced 
Audi A4 in Alabama, United States
Jan 2010 - Jun 2011
Jun 2010

128000 mi

US $1500
Clutch and flywheel replaced 
Audi A4 in Idaho, United States
Sep 2007 - Oct 2009
Mar 2008

96000 mi

US $300
Valve cover gasket and cam tensioner were leaking oil on engine. 
Apr 2008

98000 mi

US $200
Boost change over valve "N75" had to be replaced along with a few vacuum lines. CEL hasn't returned since. 
May 2008

98000 mi

US $30
Coolant Temp Sensor replaced due to erradic Engine Temp gauge. 
Jul 2008

102000 mi

US $400
Alternator was not charging battery. Tested electrical system at shop. New alternator was installed, problem resolved. 
Apr 2009

110000 mi

US $25
severely worn TRE. Replacement of both TRE's successful. 
Audi A4 in Ontario, Canada
Mar 2007 - Apr 2011
Sep 2007

68820 mi

C $550
thermostat was staying open and the engine coolant temperature was too low. 
Oct 2008

78740 mi

C $200
Cracked temp sensor. 
Feb 2009

82460 mi

C $800
Rear brake ABS sensor became loose due to rust & corrosion and both left & right had to be replaced.  Both drive shafts removed and sandblasted. 
Sep 2009

86800 mi

C $400
driver side fog light was severely corroded and required replacement 
Apr 2010

93000 mi

C $600
rear seal was leaking, replaced and is now fixed right front tie rod replaced. 
Jan 2011

99200 mi

C $85
Check engine light came on after engine had stumbled after starting - reported engine miss 
Audi A4 in British Columbia, Canada
- Aug 2009
Jun 2009

48980 mi

C $1000
Timing belt/water pump Tie rod end 
Jul 2009

51150 mi

C $20
Replaced few broken vacuum hoses 
Aug 2009

51460 mi

C $50
Leaky valve cover gasket 

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2001.5 Audi A4 4-door

turbocharged 6-cylinder manual AWD

Audi A4 in North Carolina, United States
Aug 2007 - Mar 2010
Sep 2007

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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2001.5 Audi A4 4-door

turbocharged 4-cylinder automatic AWD

Audi A4 in Arizona, United States
Sep 2006 - Nov 2007
Jul 2007

66000 mi

US $125
mass air flow sensor failed. We had noticed a drop in power, scanned the car with our scanner, and determined part of the failure. Turns out Audi had a recall on the part and had extended the warranty. Overall cost was for labor, as part was covered bu 

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2002 Audi A4 Repair Histories

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 2002 Audi A4 problems occur, check out our car reliability stats.