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2007 Audi A4 / S4 / RS4 repairs by problem area

Engine (53%)

Transmission and Drivetrain (4%)

Brakes and Traction Control (3%)

Suspension and Steering (8%)

Electrical and Air Conditioning (17%)

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

Other (4%)

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Chart based on 655 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 (12%)

$500 - $999 (13%)

$100 - $499 (30%)

< $100 (39%)

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Chart based on 262 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

27000 mi

losing antifreeze. gasket replaced

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29000 mi US $50	coolant leaking - found a faulty hose
32200 mi	Aux radiator leaking

45100 mi US $1000	Replace belt
58000 mi US $3364	Plastic(!) valve cover gaskets warped, leaking oil. Covers replaced with new OE at tremendous cost. Audi cursed out loud. Oil cooler leaking coolant from seals. Seals replaced.

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57040 mi	Leaking Valve Covers
64680 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

95000 mi

US $900

P0171 check engine code. Right bank too lean. Vacuum hose replacement

66300 mi

Squeaking noise during idle and acceleration. Replaced serpentine belt, idler, and tensioner.

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54000 mi	key/ignition cylinder refused to turn rendering car unable to drive.
65300 mi	Mass air flow sensor broke damaging throttle body. MAF and throttle body replaced.
67300 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.
85221 mi US $6000	Motor mounts,

66000 mi

US $85

Fuel pump failure.

62000 mi US $600	Intake Mani gasket and 02 sensor replacement
69000 mi US $400	alternator belt and tensioner replacement. belt broke.

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.

156000 mi

US $5000

Timing chain components and clutch

56800 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.

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45700 mi	Serpentine belt was failing.
61500 mi	Ignition coil failure
81400 mi US $600	Replaced N80 valve.
83300 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.
88000 mi US $800	Car failed to start. Dealer changed coil pack. Car failed to start. Dealer changed fuel pressure sensor.
81800 mi US $200	Car failed to start. Had it towed to independent repair shop. There were too many codes for them to even attempt a repair. Car failed to start. Took it to dealer due to the number of codes found in VAG COM. Dealer cleared codes and said they could not replicate problem. Car failed to start. Took back to indy shop. VAG COM code showed camshaft sensor failure. Went back to the dealer since they have been paid numerous times for repair. Dealer said there were no codes, then called and said fuel pump $1700. Dealer "guessed" at fuel pump @ $1700. Took car back to indy. VAG COM showed camshaft sensor failure. Indy changed camshaft sensor. No problem since.

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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

50220 mi

C $1500

Water Pump housing cracked, so it and water pump and thermostat and coolant replaced. Since the front bumper had to be removed to do this, the sepentine belt was replaced at the same time (it was looking aged).

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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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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.

51200 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.

55000 mi

US $189

Check Engine light for "Too Lean" fault. Single O2 sensor replaced and issue resolved.

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. Replace O2 sensor. Check engine light: Outside air temperature sensor replacement. 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.
106620 mi C $465	Air leak in oil/water separator
109740 mi C $960	Carbon cleaning of exhaust valves on block.

95000 mi

US $3000

Carbon buildup needed to be cleaned, and fuel injectors replaced

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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10000 mi

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

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.

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
59200 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.
73000 mi US $50	Replaced failed thermostat

98000 mi US $1200	Replaced exhaust valves (previous owner ran low octane fuel, detonation chipped away at them), cam chain, tensioner and timing belt. Car was running on two cylinders. That's what you get for a screaming deal at an auction.
104000 mi US $100	Coolant leak so i replaced the coolant flange. Oem part $60.

88000 mi US $879	75000 mile maintenance. Included oil change and diagnostic of excess oil burning.
89000 mi US $2150	Catalytic converter clogged Engine snub mount degraded. Upgraded with polyurethane mount. Coolant flush needed due to incorrect type of coolant in system when car was purchased. Included, thermostat, seals, coolant flush. Also signs that the temp sensor and coolant flange were failing, and in there, so replaced these as well.
91225 mi US $2300	Valve cover was found to be leaking large amount of oil into the inter cooler. Replaced valve cover and gasket. Internal waste gate found to be leaking into the Turbo and inner oil seal was also found to be leaking.
94000 mi US $48	Valve cover flap had broken causing the engine to burn excessive amounts of oil. 1qt every 600 miles. Oil change. Noticed Oil leak around filter housing or Oil Cooler. Ordered seals.
98000 mi US $228	Engine would cut out after high idle on start was done. Had no check engine light but when pulling codes for that there was a code for low voltage to the low volume fuel pump. Replaced fuel filter and Fuel voltage regulator that required dropping part of the fuel tank.

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).

52780 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.

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.

29000 mi

Emissions control valve failed

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49700 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.
53500 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.
80100 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.

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.
78820 mi C $150	Camshaft position sensor was leaking oil onto engine. Replaced sensor.
104629 mi C $300	Repaired cracked exhaust at "Y" before resonator. Replaced flex coupling.
106640 mi C $105	Low oil pressure light came on and engine sounded rattly. After a few minutes Check Engine light also on. The problem happened in early evening so I let the car sit overnight. I started the car the next morning and there was no low oil pressure warning but the engine still sounded rattly and the check engine light was still on. I called for a flatbed to get it to my mechanic but due to a snowstorm the truck took 4 hours to arrive and when I started the car to move it out of my driveway the problem was gone, no engine rattle. I still had it taken to the garage but aside from resetting the CEL they could not find any problem. It had been quite cold (-20C) so they think that had something to do with it. I always run synthetic oil so it shouldn't have been an oil flow problem. They don't think it was actually low oil pressure as the CEL was unrelated but the engine noise to me seemed to point to it.

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

58200 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
71000 mi US $200	Replaced engine mount.

56000 mi

US $500

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.

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.

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	Valve cover gasket replaced to address oil leak. $38 part + $105 labor Replaced valve cover gasket.
50251 mi US $369	Car running with rough idle. Valve cover breather valve and pipe replaced. Mechanic noted database (TSB?) described this as potential common problem. Replaced valve cover breather valve and pipe.
77872 mi US $2408	Low oil pressure warning light came on and engine was running very poorly. Oil pump was replaced. Diagnosed low oil pressure problem to be failed oil pump.
83048 mi US $508	MIL came on and car was misfiring badly. One ignition coil was not functioning, 2 others were cracked. Replaced all 4 coils. Diagnosic labor and replacement of 4 ignition coils (1 fails, 2 cracked, one proactive) Routine oil change
92929 mi US $95	Rattle when shifting. Shop diagnosed as loose heat shield resting on muffler. Resecured shield, but did not eliminate original noise of concern. 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.
103692 mi US $301	Diagnosis for oil leak. Added oil. Replaced valve cover gasket and crankcase valve to fix oil leak.
110884 mi US $1076	Center muffler replaced due to crack/hole
113829 mi US $339	Multiple misfire codes, higher RPM than expected, too lean at idle codes. Prelim repair attempt pulled spark plugs, cleaned oil from cylinders and reinstalled plugs. MIL came back on in ~2 days Replaced crankcase pressure regulating valve and vent valve gasket
119094 mi US $1016	Diagnostic investigation. Oil bypassing PVC valve pooling in cooler pipe due to split in baffled shield. Replaced valve cover gasket and baffle shield Reattached loose exhaust sheild
125112 mi US $40	Diagnosis included misfire codes on cylinder 3 and throttle valve controller malfunction. Codes cleared.
132568 mi US $173	Exhaust with rust holes
136656 mi US $95	Diagnose check engine light. Code suggested very small leak. Expected loose gas cap.
137648 mi US $266	Diagnose check engine light. Evaporators codes. Checked for leaks. None found. replaced purge valve
139159 mi US $591	replaced leaking exhaust clamp Diagnose check engine light remove and replace boost pressure recirculating valve
141868 mi US $1877	Resonator pipe had come loose. Replaced and reclaimed
143000 mi US $343	Replaced booster valve installed Nov 2020 at prior repair. Dealer determined aftermarket part was not compatible and check engine light was on as a result
146500 mi US $48	Low coolant light came on. Tested for potential leak. None found.
152000 mi US $92	Check engine light came on and engine was running rough. Brought in for diagnosis. Fault codes stated engine speed sensor. Shop reported only 0.5V on sensor vs expected 1.2V.

5000 mi

Car had start problems in the morning. Fuel line pressure monitor had to be replaced.

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108000 mi US $180	Engine computer management software updated.
110000 mi US $343	Air intake cleaned.

66238 mi

US $1400

Center and side engine mounts needed to be replaced.

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41300 mi	Replaced Clutch sensor
64000 mi US $90	Timing belt case oil leak
89300 mi US $400	Cam shaft seals replaced, leaking oil.
92400 mi US $400	Intake air control vacuum sliders stuck with carbon built-up. Intake removed and cleaned to restore slider movement and clear code.
104500 mi US $300	Crankcase gasket oil leak
115000 mi US $200	Valve cover gasket replacement
137000 mi	crankcase oil leak noted, not repaired

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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.

57000 mi

Oil light came on, dealer stated loose oil filter

99000 mi

US $650

Faulty fuel pump.

85000 mi

US $530

Motor mounts crumbling.

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

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15000 mi

Misfire at highway speeds, especially at high ambient temperatures and with cruise control on.

72000 mi

US $420

Head Gasket Replaced, Crank Case Ventilation Valve and Gasket Replaced

51840 mi

US $2000

This trip was the second oil consumption test since owning this CPO car. The first was shortly after we bought it, when it consumed 1 qt of oil every 1400 mi. Audi installed new piston rings under warranty. $2000 otherwise. 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.

72540 mi	Coolant leaked, could not find source of leak, likely result of extreme cold weather. Filled coolant, levels seem okay now.
73880 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.
93000 mi C $2000	Exhaust leak

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.
88500 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.
89100 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.
91200 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.
92300 mi US $115	It is still not fixed.
94300 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.
111000 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.

42000 mi

crankcase breather hose replaced

123000 mi US $120	Coolant loss caused from leaking and cracked rear coolant flange.
123000 mi US $350	Misfires caused by carbon build up. Carbon cleaning was performed.

115000 mi US $550	Replaced resonator. Exhaust leak, noise.
129000 mi US $400	Replace turbocharger. Valve cover gasket replacement.

58900 mi A $450	Crank case pressure relief valve failed and was replaced.
94160 mi A $350	PCV had failed and was replaced

94400 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.

40000 mi US $90	PCV valve
53000 mi US $400	leaking coolant manifold

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 $32	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
117180 mi C $1004	Diagnosis only - Coolant flange leaking, Thermostat faulty

26450 mi

US $571

Manifold runner valve failed and triggered CEL. Valve repaired and car is fine now. Check Engine light lit with loss of power. Had to replace Intake Manifold Runner Control valve and reset CEL. $571.00 total cost.

41000 mi

Check engine light, shop TSB 2016868/4 states to replace intake flap motor, intake flap motor replaced.

33000 mi

Complained of slow shifting to 1st gear at stop. The dealer changed (updated) some software.

40920 mi

Slight engine shuddering due to PCV.

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5000 mi	Check engine light came on. Low fuel pressure sensor replaced under warranty.
42000 mi	Replaced crankcase vent valve under manufacturer extended warranty
44000 mi	Crankcase vent valve update: Replaced Turbo Pipe
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

37000 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.

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
145600 mi US $300	Coolant flange was leaking
157000 mi US $500	CELs for EVAP system and misfire
174000 mi US $200	Large EVAP leak due to punctured EVAP line behind front bumper on passenger side. Possibly from driving bumper over a curb while parking. The splash guard wasn't installed at the time.
182400 mi US $936	Swapped temp sensor o-ring seal due to coolant leak from flange Motor mounts were changed. The mounts were dead pretty much. They have been leaking for a long time now. The straight lower arm fail on both sides. I decided to change out all 4 anyhow.

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31000 mi	Cracked valve/camshaft cover
33000 mi	Car felt a slight bit sluggish. PCV valve was clogged/damaged. Dealer replaced.

137000 mi

US $539

throttle body locked up wouldn't open, replaced throttle body

78500 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.
143000 mi US $3500	Something with the cam
148000 mi US $6000	Complete engine replacement with a used engine. 2.0T totally failed during normal driving and had metal shavings in the oil.
149000 mi	Turbo failed 3 weeks after engine was replaced

13000 mi

Check Engine light - Audi replaced an intake flap under warranty

143840 mi A $80	Cooling flange leaking at the end of the engine required replacement of flange. Difficult to do but not expensive part, under 100.
144460 mi	Exhaust rusted around resonators area, replaced with new item.

191700 mi

Replaced head gasket and rear timing chain

149800 mi US $400	Engine mounts replaced
124800 mi US $400	airflow mass sensor and vacuum (ECC?) valve
198200 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
261000 mi US $650	Oil leak at oil filter base

47000 mi	PCV valve failed.
49200 mi	Belt tensioner was whistling when cold.

131100 mi

Replaced thermostat housing

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.

122300 mi

US $6008

Engine blew related to the turbo using leaking too much oil.

71920 mi

Replaced cam cover gasket, small leak

85000 mi	Turbo bypass valve noisy.
90600 mi	The following Service Bulletions were performed at 71,226 miles: (1)Replaced Intake Flap Motor. (2) Replaced Fuel Pressure Sensor. (3) Replaced Pressure Control Valve and Breather Pipe. Oil Consumption Test determined car is consuming 0.81 quarts of oil every 1000 miles. Parts ordered.
92281 mi	Replaced Piston Rings. 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. Update: 5K miles - not a drop used! :) 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! :)
115000 mi US $350	Coolant leak at flange behind engine

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

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.
138300 mi US $200	fuel pressure regulator fault. replaced fpr and all is good again

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23000 mi

Fuel Pressure sensor failed.

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
50000 mi	engine light back on when sold

63000 mi

US $323

Removed & replaced faulty fuel pressure sender

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.
38300 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.
113447 mi US $472	Cam solenoid seal replacement Valve cover gasket replacement (both banks)

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93800 mi

US $400

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

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
47200 mi US $2300	carbon build up on intake system

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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.
45000 mi	High Pressure Fuel Pump Failed. Known issue covered under Audi's extended warranty for that part.

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
85700 mi US $200	Two coil packs failed, I had all four replaced
92700 mi	CEL due from coolant system, shop recommends replacing thermostat and temperature sensor
106000 mi US $1000	Replace failed thermostat (was stuck open)
108000 mi US $900	Low pressure fuel sensor on high pressure fuel pump was replaced, due to check engine light and fuel cuts/stalling at low RPM right side motor mount was found leaking, and was replaced with solid rubber aftermarket mount

34500 mi US $512	Replaced cracked intercooler. Replaced rear main seal. 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.
62000 mi US $330	Water pump leaking from gasket. Improper seating of gasket when timing belt changed. Water pump removed, gasket surfaces reconditioned, gasket and water pump replaced
69000 mi US $430	Leaking diverter valve (torn diaphragm). Replaced with new diverter valve.
72000 mi US $1500	Motor mounts worn and leaking. Both mounts replaced Radiator overflow tank cracked, with slight leak Severe vibration of serpentine belt tensioner and belt. Diagnosis was that tensioner failed, and belt ruined by vibration. Tensioner and belt replaced.
73000 mi US $501	Vibration again noted in engine. Overrun pulley on alternator seized, pulley replaced

30000 mi £1000	Unable to start. Initially told failed camshaft sensor, subsequently melted ignition coil. Billed for both.
31000 mi £1000	Further ignition coils failed

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45000 mi

Check engine light was on, sensor and tube for the turbo was replaced.

26000 mi	Check engine light. Repair to Emissions module
57300 mi	oil leak
61000 mi US $300	oil leak was repaired
65000 mi US $540	Warning light

25000 mi US $400	Vacuum leak PCV replaced
68400 mi US $200	Temperature sensor
72000 mi US $350	New thermostat
77000 mi US $450	Sensor error, replaced.
92000 mi US $1100	Ignition switch and relay.
97000 mi US $2000	motor mounts

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.
88000 mi US $650	Carbon build up, fouled plugs and coil pack

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

31000 mi	replace valve cover gasket under warranty
56000 mi US $400	replace valve on turbo

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27000 mi

breather valve went bad

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59000 mi

continuous leakage of oil into the cooling system

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80000 mi US $70	diverter valve allowing boost to escape
86000 mi US $15	Dealer recall/extended warranty PCV Valve intake motor and thrust sensor replaced 15 dollars for loaner

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70000 mi

US $150

valve cleaning needed. declined to have repair done as cost is $900+. the 150 paid is for diagnostics.

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See TrueDelta's information for all Sedans, Wagons, and Convertibles.

See TrueDelta's information for all Audi models.

2007 Audi A4 / S4 / RS4 repairs by problem area

2007 Audi A4 / S4 / RS4 engine repair cost distribution

2007 Audi S4 4dr Wagon

2007 Audi S4 4dr Wagon

2007 Audi S4 4dr Sedan

2007 Audi S4 4dr Sedan

2007 Audi S4 2dr Convertible

2007 Audi S4 2dr Convertible

2007 Audi RS4 4dr Wagon

2007 Audi RS4 4dr Sedan

2007 Audi A4 4dr Wagon

2007 Audi A4 4dr Wagon

2007 Audi A4 4dr Wagon

2007 Audi A4 4dr Wagon

2007 Audi A4 4dr Sedan

2007 Audi A4 4dr Sedan

2007 Audi A4 4dr Sedan

2007 Audi A4 4dr Sedan

2007 Audi A4 4dr Sedan

2007 Audi A4 4dr Sedan

2007 Audi A4 2dr Convertible

2007 Audi A4 2dr Convertible

2007 Audi A4 / S4 / RS4

2007 Audi A4 / S4 / RS4 4-door

2007 Audi A4 / S4 / RS4 4-door

2007 Audi A4 / S4 / RS4 4-door

2007 Audi A4 / S4 / RS4 Engine Problems