2007 Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2007

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2007 Audi A4 / S4 / RS4 repairs by problem area

Engine (48%)

Transmission and Drivetrain (4%)

Brakes and Traction Control (5%)

Suspension and Steering (7%)

Electrical and Air Conditioning (19%)

Paint, Rust, Leaks, Rattles, and Trim (11%)

Other (6%)

Chart based on 541 repairs.
See TSBs and recalls for the 2007 Audi A4 / S4 / RS4.

2007 Audi A4 / S4 / RS4 engine repair cost distribution

$2500+ (6%)

$1000 - $2499 (15%)

$500 - $999 (19%)

$100 - $499 (51%)

< $100 (9%)

Chart based on 115 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2007 Audi S4 4dr Wagon

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

27000 mi losing antifreeze. gasket replaced 

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2007 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

29000 mi

US $50
coolant leaking - found a faulty hose 
32700 mi Aux radiator leaking 
45300 mi

US $1000
Replace belt 

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2007 Audi S4 4dr Sedan

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

95000 mi

US $900
P0171 check engine code. Right bank too lean. Vacuum hose replacement 
66700 mi Squeaking noise during idle and acceleration. Replaced serpentine belt, idler, and tensioner. 
57040 mi Leaking Valve Covers 
64880 mi

C $700
Ignition coil faulty 
67580 mi

C $2000
Coolant Leak, water pump housing replaced 
77500 mi

C $4500
Intake Manifold Pan Valley Gasket Leak 

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2007 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

57300 mi (2) catalytic converters failed, so car would not pass emissions. They will be replaced under warranty. 
68000 mi

US $800
Replaced alternator drive belt, idler pulley, belt tensioner, front crank pulley & snub mount. Snub mount and belt were worn. 
74000 mi

US $400
One of the original coil packs had failed. And the wiper blades needed to be replaced. 
66000 mi

US $85
Fuel pump failure. 
16000 mi When starting the car in the morning after sitting all night the engine surges for about 10 15 seconds. Check Engine Light came on. Code P2097 - Post Catalyst Fuel Trim Too Rich Bank 1. Dealer replaced O2 Sensor. 
23000 mi Oil level low light came one. I was told that the low level light comes on with the engine is less than 1 quart low and that it is not uncommon for this car to consume as much as 1 quart in 1,000 miles. 
35000 mi Engines surges when cold. RPM varies between 800 & 1200. 
59000 mi

US $600
Replaced Serpentine belt. It was starting to crack. 
54000 mi key/ignition cylinder refused to turn rendering car unable to drive. 
65700 mi Mass air flow sensor broke damaging throttle body. MAF and throttle body replaced. 
67700 mi

US $458
Car completely lost electrical. Nothing worked. Was told serpentine belt was too worn and would not charge battery. 
72000 mi

US $2769
Oil leak. Valve cover gasket, oil cooler o-ring. 
62000 mi

US $600
Intake Mani gasket and 02 sensor replacement 
69000 mi

US $400
alternator belt and tensioner replacement. belt broke. 

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2007 Audi S4 2dr Convertible

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

57700 mi Serpentine belt was failing. 
61500 mi Ignition coil failure 
82000 mi

US $600
Replaced N80 valve. 
83500 mi

US $4535
Replaced leaking valve cover gaskets Replaced cracked coolant reservoir. 
84000 mi

US $500
Car would not start. Supply power relays faulty. Both were replaced. 

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2007 Audi RS4 4dr Wagon

420-horsepower 4.2L V8 6-speed manual AWD

3000 mi Intermittent hesitation when setting off in first gear. Design flaw, no repair. 
4500 mi Carbon build up in engine due to incompatibility between the engine and recommended oil. Car sent to an independent specialist with a rolling road. Car was not producing anywhere near specified BHP. Found that a problem with many RS4s. 

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2007 Audi RS4 4dr Sedan

420-horsepower 4.2L V8 6-speed manual AWD

89280 mi

C $100
Rear O2 sensors failed. Check engine light on. 
95480 mi

C $255
Check engine light: Outside air temperature sensor replacement. Replace O2 sensor. Replaced failed O2 sensor. 
102920 mi

C $2977
Remove and replace bank 1 sensor 2 oxygen sensor. Vibration/Buzz sporadically & rattle over bumps. Exhaust system hanger broken causing exhaust to rest on cross beam. Replaced hanger and space out cross beam. 
107220 mi

C $465
Air leak in oil/water separator 
109740 mi

C $960
Carbon cleaning of exhaust valves on block. 
51300 mi

US $1200
Carbon buildup in intake manifold and valves. Must be manually cleaned. Known issue audI won't cover. Engineering flaw with direct injection system. 
28000 mi Oil level sensor 
59000 mi

US $200
ECM upgraded because the engine threw a code for Carbon Build up. I "believe" this will have the engine run a little hotter and have the threshold for the code set higher. 
55000 mi

US $189
Check Engine light for "Too Lean" fault. Single O2 sensor replaced and issue resolved. 
114000 mi

US $2100
Intake valve flaps and position sensors were reporting errors. The flap arms were replaced and the oil separator was replace. Intake valves were cleaned of carbon deposits. 

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2007 Audi RS4 2dr Convertible

420-horsepower 4.2L V8 6-speed manual AWD

37200 mi

C $150
Slow leak in lower rad hose assembly 
43400 mi

C $773
Engine light came on. Analysis determined 3 out of the 8 coils were faulty. Changed all 8 and replaced spark plugs which were original 

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2007 Audi A4 4dr Wagon

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

10000 mi High pitched "whistle" at high rpms under WOT conditions. Diagnosed as PCV valve failure. 
59520 mi

C $320
Fuel pressure sensor failed, defaulting to reading high fuel pressure so the engine management shut down the fuel pump. Car lost power and had to be towed, fixed the same day by dealer. 
38000 mi

US $1300
Cambox oil leak. Gasket replaced Thermostat housing leaking. Housing and thermostat replaced 
42000 mi

US $450
PCV failed. Audi replaced pCV and fuel regulator under emission warrantee. I had to pay for cambox oil leak. Previous mechanic failed to diagnose and dismissed my telling him the underlying issue (low miles,shirt journeys, oil on filler). 
35000 mi Faulty gas cap, was replaced under warranty. Fuel pressure regulator recall. Was made aware by service adviser when I brought the car in for routing maintenance. 
60000 mi

US $75
Failed diverter valve. Part replaced 
64000 mi

US $60
Check engine light revealed large evap leak. Diagnosed failed N80 and breather valves. 
29000 mi Emissions control valve failed 
52680 mi

C $100
had noticed blue smoke on decel after heavy throttle application. dealer found PCV valve plugged, replaced valve and valve cover, cleaned out intake / intercoolers. 
89280 mi

C $1740
diverter valve and valve cover PCV system failure. diagnose and replace both. Also replace timing belt, pulleys, water pump at Audi's cost. 
41000 mi replaced ignition coils 
52000 mi replaced coil pack on one cylinder (which was already replaced 1 yr earlier as part of the recall);  replaced valve cover gasket 
59300 mi Intake manifold runner control motor fault 
70000 mi

US $1299
Exhaust system failed / rusted out after 9 years on salted Northeastern streets. Replaced with Europa Parts stainless performance exhaust system. A bit noisy, but noticeable performance improvement. 

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2007 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

29000 mi Oil pressure regulator failure, causing full oil pressure. Oil coming out of fill cap. 
47000 mi Replaced engine mounts replaced valve cover gasket 
80500 mi

US $900
A bracket that connected two sections of the exhaust had corroded, it was affecting turbo boost pressure. It was removed, replaced and all else is back to normal. Fuel pump injector failed. Replaced. 
40114 mi Water leak in plastic ECU housing repaired. 
42886 mi Camshaft, cam follower and high pressure fuel pump replaced after cam follower failed. 
53355 mi

C $100
replace clutch pedal switch for cruise control 
55180 mi

C $100
Check engine light on: Replaced intake flap motor and diverter valve 
78120 mi Clamp connecting two sections of exhaust pipe was cracked. Replaced clamp. 
78420 mi

C $150
Camshaft position sensor was leaking oil onto engine. Replaced sensor. 
85000 mi

US $1352
Traction control light and EPC light coming on intermittently, car stalling for a period of time. Replaced throttle body and wiring. 
90000 mi

US $120
Second trip for warning lights, stalling. 
95000 mi

US $815
At the dealer three times in last six months. Each time the dealer had it for at least a week. Traction control light and EPC light coming on intermittently, car stalling for a period of time. Total of $2300, not fixed. 
57500 mi

US $4000
Cam follower failed, had to replace intake camshaft and all related components. Also did timing belt. 
58000 mi

US $5000
cracked head on guide rail frame for camshafts. Also had a broken baffle inside the valve cover. 
70000 mi

US $600
leaking engine mount on passenger side. Ordered new mounts for $200 
71500 mi

US $200
Replaced engine mount. 
9540 mi Had brake noise (right front): "glaze" on pads reported. Performed TSB 2015505/2 (replace PCV valve) and 2015505/3 (remove & reinstall pressure regulating valve) to address small oil leak at fill cap and oil consumption (warning light - had to add ~1 qt 
47934 mi

US $177
Replaced valve cover gasket. 
50251 mi

US $369
Replaced valve cover breather valve and pipe. 
77872 mi

US $2408
Diagnosed low oil pressure problem to be failed oil pump. Oil pump replaced. 
83048 mi

US $507
Diagnosic labor and replacement of 4 ignition coils (1 fails, 2 cracked, one proactive) Routine oil change 
92929 mi

US $95
Noticed rattle noise when shifting. Diagnosed by shop as loose heat shield resting on muffler. Shop resecured, but did not eliminate original noise. Unsuccessful repair. 
5000 mi Car had start problems in the morning. Fuel line pressure monitor had to be replaced.  
50000 mi The car was burning oil. Oil consumption test was performed. Dealer determined that piston rings needed to be replaced. After piston rings were replaced I noticed small puddles of oil on garage floor. Took the car back to the dealer and they replaced a valve on the turbo as well as a hose that attached to the turbo. 
51000 mi

US $210
Car continued to burn oil. This time, the dealer replaced the gasket cover. So far I haven't seen any additional oil being burned. 
64700 mi

US $85
I returned from a trip and there was no throttle response even though the car would start. The ECU appears to have crashed. The dealer re-flashed the ECU and the car runs fine now. 
79700 mi

US $500
Vacuum pump went bad causing an oil leak. The pump was replaced. 
84000 mi

US $1600
Replaced motor mounts. Also replaced rear brakes. 

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2007 Audi A4 4dr Wagon

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

108000 mi

US $180
Engine computer management software updated. 
110000 mi

US $343
Air intake cleaned. 

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2007 Audi A4 4dr Wagon

255-horsepower 3.1L V6 6-speed manual AWD

41000 mi Replaced Clutch sensor 
64000 mi

US $90
Timing belt case oil leak 
89700 mi

US $400
Cam shaft seals replaced, leaking oil. 
92300 mi

US $400
Intake air control vacuum sliders stuck with carbon built-up. Intake removed and cleaned to restore slider movement and clear code. 
105000 mi

US $300
Crankcase gasket oil leak 
115000 mi

US $200
Valve cover gasket replacement 

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2007 Audi A4 4dr Sedan

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

99000 mi

US $650
Faulty fuel pump. 
36000 mi Check engine light came on and originally thought it was loose gas cap. Found out from dealer there was an issue with the gas tank and it had to be replaced. Car was under warranty so I was not charged for the repair. 
71000 mi

US $181
Crankcase valve replaced. Second time, AUDI/VW engineers designed a poor valve. replaced with latest model..HOPE IT LASTS longer than the previous version!!! 
87000 mi

US $104
Dipstick replaced. The plastic broke below the pull ring due to heat and poor manufacturing quality control. Sensor then detecting low engine pressure, CEL went on. Cost $104 to replace. 
104000 mi

US $2000
Timing belt and engine mounts 
123000 mi

US $275
evaporator emissions 
85000 mi

US $530
Motor mounts crumbling. 

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2007 Audi A4 4dr Sedan

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

72500 mi

US $420
Head Gasket Replaced, Crank Case Ventilation Valve and Gasket Replaced 
44020 mi

C $694
Thick white smoke from exhaust and loss of power when accelerating. Diagnosis found oil in the Intercoolers. Drained oil from intercoolers, replaced hose, gasket and sparkplug 
46500 mi

C $157
Thick white smoke coming out from Exhaust when accelerating. Loss of power felt. Thick white smoke from exhaust. Check engine/Mil. light came on. 
50220 mi

C $341
Smoke reappeared on acceleration despite replacing Turbo. Dealer suggested replacing Valve cover. 
62620 mi

C $1494
Complete timing belt job Camshaft seal leaking Valve cover gasket leaking 
88000 mi

US $200
Current problem is something with the fuel system. Car will barely crawl. Two problems within two months, not good. Love the car when it works properly, which has been about two weeks. Dealer narrowed problem down to hpfp or regulator. 
89000 mi

US $100
Used car dealer installed high pressure fuel pump with $100 deductible. Update: they installed a used pump, failed again a month later. Limping around, trying to get Audi to honor warranty. 
90000 mi

US $1200
Car running poorly, limp mode, low fuel pressure, check engine light, EPC light. Replaced LPFP and HPFP, didn't resolve issue. Dealers just throw parts at a problem. 
91300 mi

US $30
Car still going into limp mode, EPC light still coming on. Replaced two 612 or 614 relays myself based on forum suggestions, 5 minutes. Still ran awful until a shop cleared many codes. So far 150 miles issue-free. Probably $30 relays the whole time. 
92700 mi

US $115
It is still not fixed. 
94700 mi For at least 8 months I have been having fuel pressure issues. We have replaced everything under the hood fuel related even the ECM to no avail. Car is going back to the shop tomorrow. This car is a fluke not the rule. Usually a very nice car. 
107000 mi

US $5000
Fuel cuts. Ongoing. Entire time I've owned the car with no end in sight. For a premiem car this one is fucked. 
110000 mi

US $600
After 3+ years and thousands of dollars spent the culprit was the clip that goes onto the top of the hpfp. Lesson, go to Darlings Audi if you're in Maine. 
40000 mi

US $90
PCV valve 
53000 mi

US $400
leaking coolant manifold 
72540 mi Coolant leaked, could not find source of leak, likely result of extreme cold weather. Filled coolant, levels seem okay now. 
73980 mi Timing belt scheduled maintenance. Water pump replaced and seems to have solved coolant leak. 
88040 mi

C $200
Diverter valve and wastegate actuator replaced. Engine not receiving enough boost.  Engine mounts also failed, but have not replaced. 
51840 mi

US $2000
The oil consumption, as on many A4s, had been high. First test, performed in '09, car passed. Second test, January, 2013, car failed. Audi approved new piston rings. Work sheet indicates crank was checked and passed specs. 
59000 mi

US $20
After changing the plugs, the car ran well for 1 day. Then it started running on 3 cylinders. Apparently one coil had always been faulty. After replacement of all coils, the car runs better than when bought with 6,600 mi. on it. 
26450 mi

US $571
Check Engine light lit with loss of power. Had to replace Intake Manifold Runner Control valve and reset CEL. $571.00 total cost. 
94300 mi Extended warranty for PCV and flap motor replacement. 
98000 mi

US $300
Hydraulic motor mount failed, replaced both, along with snub mount. Replaced cam follower after checking and finding excess wear. 
33000 mi Complained of slow shifting to 1st gear at stop. The dealer changed (updated) some software. 
42000 mi crankcase breather hose replaced 
15000 mi Misfire at highway speeds, especially at high ambient temperatures and with cruise control on. 
41000 mi Check engine light, shop TSB 2016868/4 states to replace intake flap motor, intake flap motor replaced. 
58900 mi

A $450
Crank case pressure relief valve failed and was replaced. 
98540 mi

A $350
PCV had failed and was replaced 

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2007 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual FWD

48000 mi

US $80
There were a few things. It went in for a recall originally. Noticed sqeaking noise from the engine. It was the timing belt. Dealership changed it. Other work done includes brake fluid flush. 
101000 mi Positive crankcase valve (PCV) was not creating the proper vacuum seal causing the car idle really rough 
118000 mi Check engine light indicated fuel regulator pressure problem. Turned out to be low pressure fuel pump controller 
145700 mi

US $300
Coolant flange was leaking 
157000 mi

US $500
CELs for EVAP system and misfire 
5000 mi Check engine light came on. Low fuel pressure sensor replaced under warranty. 
42000 mi Replaced crankcase vent valve under manufacturer extended warranty 
53000 mi

US $125
Check engine light had been illuminated, but was no longer on. Dealer reviewed stored codes, but found no issues. Was charged $125 diagnostic fee. 
66000 mi

US $240
EPC and CEL lights illuminated at start-up. Upon restart the EPC light would go away. Very sporadic at first but eventually started occurring multiple times each day. From forums I learned others had fixed this by replacing the J757 fuel pressure relay. 
71000 mi

US $700
Replace thermostat and temperature sensor 
39000 mi Dealer had to replace a faulty ignition coil. Audi paid for the tow and the repair was done under warranty. No out of pocket expense.  

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2007 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed manual AWD

71920 mi Replaced cam cover gasket, small leak 
85000 mi Turbo bypass valve noisy. 
89538 mi Oil Consumption Test determined car is consuming 0.81 quarts of oil every 1000 miles. Parts ordered. 
92281 mi Replaced Piston Rings. 
93332 mi

US $85
My oil level was down over 1/2 a quart at 1K with new rings. And it was still bogging and blowing a plume of smoke. Valve cover crack discovered causing oil to be sucked into turbo and burned through exhaust. 5K miles - not a drop used! :) 
119000 mi

US $350
Coolant leak at flange behind engine 
31000 mi Cracked valve/camshaft cover 
33000 mi Car felt a slight bit sluggish. PCV valve was clogged/damaged. Dealer replaced. 
122700 mi

US $6008
Engine blew related to the turbo using leaking too much oil. 
42000 mi Ignition lock cylinder jammed. Dealer replaced cylinder.  
44000 mi I had to have the fuel pump piston, cam follower and intake camshaft replaced due to wear. This was a TSB issue. 
138700 mi

US $200
fuel pressure regulator fault. replaced fpr and all is good again 
13000 mi Check Engine light - Audi replaced an intake flap under warranty 
131300 mi Replaced thermostat housing 
120400 mi

US $400
Engine mounts replaced 
144400 mi

US $400
airflow mass sensor and vacuum (ECC?) valve 
199300 mi

US $1500
Turbo underboost. Must be replaced. Debugged for all possibilities of Intake sensor or pressure valve. 
224000 mi

US $500
Turbocharger leak Vacuum system in fuel 
45000 mi

US $190
Some ventilation crank's diaphram was dead, so the engine could not get enough air. 
61000 mi

US $200
Spark plugs misfiring, needed new ones. 
47000 mi PCV valve failed. 
47000 mi Belt tensioner was whistling when cold. 
44000 mi fuel pressure sensor, other? engine light on (for months), covered by audi 
78000 mi

US $200
Check engine light on exhaust system fault 
142000 mi

US $539
throttle body locked up wouldn't open, replaced throttle body 
79000 mi

US $600
Turbo cutoff valve replaced. Will have to return to dealer for further troubleshooting. 
88000 mi Check engine light and drivability impacted. TSB for cam shaft failure / replacement. Repair would have been over $2500 covered by AoA. Bulletin SB090111. 

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2007 Audi A4 4dr Sedan

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

28000 mi Car was running rough upon initial start up in cold weather. Re-flash causes engine to initially run richer. Problem no longer experienced. 
35000 mi

US $50
Oil leaking onto garage floor. Identified as bad cam seal. Seal replaced. 
38700 mi CEL reading claimed multiple cylinder misfires. Could be carbon build up problem or fouled spark plugs. Told to add octane booster once per month for next two months. CEL reset. 
40000 mi Car was hesitating/missing under throttle. I was told that the plugs needed to be replaced (only 16K on them). Since they replaced plugs under scheduled maintenance, no charge. I speculate could be faulty coil packs & plan 2 ask them about. 
92000 mi

US $112
CEL with P2006 & P2007 codes. Forums advised was vacuum leak & to check the vacuum tubes running across the engine to driver side. Unable to find broken tube. Shop replaced vacuum tube running across back of engine. 
50000 mi replaced 2 engine mounts that were leaking fluids 2 engine fault light that related to vacuum hose issues; these repairs would have been $1,600 without the warranty 
51000 mi engine light back on when sold 
63000 mi

US $323
Removed & replaced faulty fuel pressure sender 
23000 mi Fuel Pressure sensor failed. 

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2007 Audi A4 4dr Sedan

255-horsepower 3.1L V6 6-speed manual AWD

44000 mi

US $155
epc light comes on after engine is warm, dealer scan shows cold misfire code. i am given 2 bottles of G17 gas additive. engine starts easier, but epc light still comes on after engine warm. 
46000 mi

US $500
valve covers replaced 
47500 mi

US $2300
carbon build up on intake system 
94700 mi

US $400
serpentine system was replaced -- belt was nearly shredded and tensioners were gone. 

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2007 Audi A4 2dr Convertible

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

22000 mi Replaced coilpack under warranty 
32000 mi Valve cover and oil cap gaskets were leaking, so they were replaced Burning oil under boost, replaced PCV valve, valve cover gasket, oil fill cap gasket 
35000 mi Intake manifold flap motor replaced due to CEL codes 
62000 mi

US $90
Driver side hydraulic motor mount had leaked, replaced with aftermarket solid mount 
84700 mi

US $200
Two coil packs failed, I had all four replaced 
93300 mi CEL due from coolant system, shop recommends replacing thermostat and temperature sensor 
34500 mi

US $512
Replace rear main seal-warranty Replaced cracked intercooler 
47000 mi

US $446
Thermostat stuck open, making engine run too cool. Thermostat replaced and problem solved. on most cars, this would be a minor repair, but there's 2.5 hours labor to get to the thermostat on an Audi. 
33000 mi Excessive oil consumption of approx. 1 quart every 1000 to 1500 miles. Audi dealer says this is within spec. Noticing blue smoke from tailpipes and excessive carbon build-up. Dealer gave me spare quart for trunk. Horrible service. 
46000 mi High Pressure Fuel Pump Failed. Known issue covered under Audi's extended warranty for that part. 
30000 mi

Unable to start. Initially told failed camshaft sensor, subsequently melted ignition coil. Billed for both.  
31000 mi

Further ignition coils failed 

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2007 Audi A4 2dr Convertible

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

25000 mi

US $400
Vacuum leak PCV replaced 
69000 mi

US $200
Temperature sensor 
72000 mi

US $350
New thermostat 
77000 mi

US $450
Sensor error, replaced. 
31000 mi replace valve cover gasket under warranty 
59000 mi

US $400
replace valve on turbo 
33000 mi PCV replacment to updated version 
35000 mi

US $200
Failed DC replaced with OEM piston type and installed PCV fix (Eurojet). Latter is basically an additional check valve that can handle higher boost peaks. 
43000 mi PCV replaced again with latest revission 
51000 mi Stuck valve of some kind that caused the car to run roughly. Engine light came on as well. 
61000 mi

US $500
Car was bucking at highway speeds. 
103000 mi

US $1000
Replaced part of exhaust system. 
46000 mi Check engine light was on, sensor and tube for the turbo was replaced. 
26000 mi Check engine light. Repair to Emissions module 
57700 mi oil leak 

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2007 Audi A4 / S4 / RS4

Engine not specified

27000 mi breather valve went bad  

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2007 Audi A4 / S4 / RS4 4-door

turbocharged 4-cylinder diesel CVT 2WD

61000 mi continuous leakage of oil into the cooling system 

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2007 Audi A4 / S4 / RS4 4-door

turbocharged 4-cylinder manual AWD

80000 mi

US $70
diverter valve allowing boost to escape 
93000 mi

US $15
Dealer recall/extended warranty PCV Valve intake motor and thrust sensor replaced 15 dollars for loaner 

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2006.5 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

68200 mi Engine is beginning to burn oil. 1 litre / quart every 1,500 kms 
72540 mi Serpentine belt frayed. Changed because would fail in next few months. 

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2006.5 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

97500 mi

US $2000
Fuel pump and turbo bypass valve faulty. All but $250 covered by Geico plan. Motor mounts on both sides. All but $250 covered by Geico plan. 
100000 mi

US $1500
Car stopped accelerating on the highway. Towed to a nearest dealer for $120. Spark plugs replaced and injectors cleaned for $525. Prior to this, front brake pads and rotors replaced, second time within 1 year. 
115300 mi

US $400
Replaced the part which attaches the oil filter to the engine block. Also had maintenance done (over $300 for a check up) and 3 recalls. Check engine light was on when scheduled the servivce, but it went off by itself. The final charge was over $700. 
118000 mi

US $20
My mechanic switched coils and reset the Check Engine light. So far it hasn't turned on. 
121000 mi

US $190
Well, it's the same Check Engine light issue. 2 trips to the dealer and it hasn't been fixed. Getting ready to call the dealer today for the 3rd appointment. My wallet is getting too light! Also broken glove box door hinge and armrest latch. 
123000 mi

US $90
3rd attempt to cure the Check Engine light. Mechanic tested compression. All was fine. The light stays. 
139000 mi

US $330
Misfires in multiple cylinders. All coils replaced by the dealer. 
151000 mi

US $2130
Oil leaks 
154300 mi

US $700
Additional oil leaks. Gaskets replaced. Vacuum pump replaced. 
165000 mi

US $30
I replaced the N80 evap purge valve. 

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2006.5 Audi A4 4dr Sedan

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

20000 mi Oil from CCV or EGR due to pressure sensor failure in the EGR system-or so they say. 

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2007 Audi A4 / S4 / RS4 Engine 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 2007 Audi A4 / S4 / RS4 problems occur, check out our car reliability stats.