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2009 Audi A4 / S4 / RS4 repairs by problem area

Engine (40%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (3%)

Suspension and Steering (13%)

Electrical and Air Conditioning (23%)

Paint, Rust, Leaks, Rattles, and Trim (15%)

Other (3%)

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Chart based on 542 repairs.

See TSBs and recalls for the 2009 Audi A4 / S4 / RS4.

2009 Audi A4 / S4 / RS4 engine repair cost distribution

$2500+ (11%)

$1000 - $2499 (15%)

$500 - $999 (14%)

$100 - $499 (12%)

< $100 (48%)

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Chart based on 166 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

43400 mi A $400	New PCV fitted to reduce excessive oil consumption.
52700 mi A $1400	leaking engine mounts replaced
63240 mi A $1600	water pump leaking Engine mount bracket damaged. The problem occurred after the gearbox was repaired so i think it was probably caused by the workshop, I could be wrong. Pistons and rings replaced due to excessive oil consumption.

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41200 mi	After bringing in for oil change on June 24, oil light came on and brought it back on July 23. Less than 1000 miles later. Dealer did Step one repair of oil burning recall procedure. Said to bring back if issue continues. For step 2.
42900 mi US $650	Oil light came on again, and step 2 was performed of Audi class action suit for Oil consumption. Dealer says the engine "basically now has zero miles" New pistons, rear seal, and also a new water pump.

14260 mi	Material defect in intake manifold. Car idles rough and misfires at low RPM. Audi located the problem and ordered the parts. Problem manifold replaced and repaired. ECU reflashed. Much better performance.
60760 mi C $350	Needed new spark plugs and oil change.
66740 mi	excessive oil consumption
70620 mi C $1200	Cracked water pump housing due to improper repair by audi dealer service
76220 mi C $1200	Failed integrated vaccuum advance on intake manifold rwquiring replacement of entire plastic manifold.

96500 mi US $85	replace electronic ignition key lock mechanism after getting a 'defective ignition lock' error messagernrncar is on CPO, copay $85.
87200 mi US $85	Excessive oil consumption. Dealer replaced oil 'separator' and initiated consumption test.
92000 mi US $280	significant oil leak from rear main seal
127000 mi US $4000	oil level sensor not working, warning light stayed on even after changing oil. Replaced sensor

39500 mi	Service bulletin for cam adjustment Engine was using excessive amount of oil. Performed repair per service bulletin to correct.
61200 mi US $850	CEL came on because a flap on the intake manifold was sticking. Intake manifold needed to be replaced.
52200 mi	Oil consumption test confirmed that I needed to have phase 2 done to resolve problem. Replaced 4 pistons, rings and all gaskets. Was covered under warranty even though warranty expired.
83000 mi US $400	Oil separator had a leak causing misfires in engine. Part was replaced.

53000 mi

Loud moaning sound on cold start up. Dealer claims this is due t the air injection system, and "all 2009 A4 models with the 2.0 do this. I'm working on a second opinion on that. Also, power mirror pre-sets wouldn't work. They did fix that

51460 mi C $85	Excessive oil consumption
74400 mi C $365	Excessive oil consumption. > 1qt per 1000 kms. Oil consumption test is being performed
75640 mi C $600	Excess oil consumption. Vehicle has 'failed' oil consumption test. Data has been sent to Audi for review.
78740 mi	Performed Audit TSB 2039655/1 Excessive Oil Consumption. Measured cylinder bore for scoring - within limits. Replaced pistons and piston rings
82460 mi C $1100	Carbon build up in intake jammed air intake flapper causing electrical actuator motor to fail.
86180 mi C $540	Check engine light. Mechanic confirmed thermostat failure. Replaced part.
89680 mi C $250	Cam access plug fell out causing significant oil leak, rough idle, check engine light

40000 mi	While under the car to change the oil, I noticed a residue of dried coolant on the side of the engine oil sump. It led up the side of the engine to a very slow leak associated with the water pump.
80000 mi	The car has recently been consuming more motor oil than before. The re is an action to deal with this issue. The oil separator and front crankshaft oil seal were replaced and the ECU was reprogramed.
80900 mi	Engine was disassembled and new pistons and rings were installed. A new timing chain and timing chain tensioner was also installed
89000 mi US $1300	Intake manifold developed an air leak and triggered a misfire and check engine light. The manifold had to be removed and replaced. While the manifold was off, the intake valves were cleaned.
105000 mi US $40	The clamp that connects the front section of the exhaust system to the rear muffler rusted and began to leak. The clamp was replaced before it failed completely

45000 mi

Turbo assembly had to be replaced.

42000 mi

Faulty turbo boost Diverter Valve. Repaired under warranty.

5500 mi
40100 mi US $1500	Leaking water pump

34300 mi

US $18

REPLACE CYLINDERS BECAUSE FOR EXCESSIVE OIL USE.

11780 mi

TSB Turbo coolant pipe replaced

25000 mi	New ECU flash per TSB concerning transmission not shifting out of 2nd gear intermittently. Engine leaking small amount of coolant. Replaced hose clamp attaching coolant hose to water pump.
33000 mi	car misfiring and eventually stalled out without being able to restart. #3 Fuel injector stuck open flooding engine. R&R #3 fuel injector

138000 mi

US $6500

Timing chain and tensioner. New intake valves, machine head, new intake camshaft. Oil change, coolant flush

90000 mi

US $700

water pump replaced

55300 mi US $550	PCV valve failed resulting in excessive oil 'consumption'
56000 mi US $325	Engine was misfiring and thus running very rough. Problem was finally diagnosed as an ignition coil failing
69500 mi	High oil consumption. Replaced pistons and rings.
87000 mi US $400	Accessory belt idler wheel broke and was replaced

152000 mi

US $1350

2 injectors were leaking fuel. Intake manifold operating improperly, stuck. All replaced.

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50000 mi

Oil leak. 2 Coolant leaks.

51000 mi US $650	Leaking waterpump. Replaced pump and thermostat.
75000 mi US $3000	Leaking water pump 3 leaking engine mounts
90000 mi US $500	Bad coil pack causing cylinder misfire. Replaced all 4 coil packs.

68000 mi	Excessive oil consumption. Took car to dealer. Replaced some components and upgraded ECU software.
68300 mi	Replaced pistons, rings and other components

23560 mi	PCV changed, ecu reflash, camshaft adjusters
40300 mi A $1200	stage 2 repair, piston and rings

50220 mi

C $600

Key sticking in ignition, whole ignition piece needed replacement.

8000 mi

CVT was shifting funny... computer setting fixed the issue.

75000 mi

US $1460

Replaced crankcase vent valve, replaced front crankcase seal, perform software update, carbon blast intake valves.

55000 mi

US $1700

This month the car was taken in for a recall -- also found that the engine mounts needed replacing. Cost 1700.00.

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47500 mi

Engine was consuming excessive oil. Got a low oil error on the dashboard. The car was still under warranty, so they put some new parts and adjusted the cam shaft position. Dealer told that they are aware of this problem with Audis with turbo

92000 mi US $550	Motor Mounts
110000 mi US $800	New Turbo
116000 mi	timing chain broken - car is scrap

106000 mi	Check engine light with code P2181 which is a well known issue with a coolant temperature sensor
118000 mi US $2000	Timing chain stretched resulting in $2000 repair to replace with no assurance that it would fix issue. Decided to trade in for 2013 Audi A6

51000 mi

US $2300

Turbo charger failed

68000 mi

US $1000

MISFIRE CYLINDER #1, ALSO BURNING A QUART OF OIL PER 1200 MILES. NEVER GOT TO THE MIS FIRING PROBLEM, SOLD CAR.....

37000 mi

Excessive oil consumption

30800 mi US $675	Intake manifold had a faulty flap and needed replacing.
55000 mi US $222	Oil separator valve leaking
56700 mi	Engine was built with one piston of the wrong size, causing excessive oil consumption. Audi did consumption tests and determined that the engine needed to be rebuilt with the correct part installed.

87000 mi

US $800

Water pump failed and leaked coolant. Water pump was replaced.

99000 mi

US $1600

preemptively replaced timing chain / camshaft. Drain and replace transmission fluid.

66000 mi

Temp gauge was drifting down after the car came up to operating temp. Diagnosed as failed thermostat. Replaced thermostat / water pump assembly under CPO. Coolant leaked after picking car up, replaced with second water pump assembly.

44000 mi	Engine was burning oil too quickly. The dealer had to make some adjustments to fix the problem, but no details were provided.
45500 mi US $500	Ignition Key was not starting the engine sometimes. A yellow key symbol with a red cross (X) on it came on the instrument panel with an error message.

50300 mi	Oil Consumption, replace PCV & gasket, pulley bolt and ECM flash.
51100 mi	Oil consumption part two. Replace pistons, rings, and all gaskets.
71200 mi US $2500	Timing chain tensioner failure.

89700 mi	Oil consumption/leakage. In the shop for diagnosis.
93000 mi	New pistons / rings / gaskets - oil consumption issue. It seems mostly fixed, but still consuming a little oil (very little compared to what it was consuming).

60420 mi C $850	Engine light came on--Needed to replace water pump and change oil separator. Car still drinking too much oil.
70460 mi	Excess oil burn. They made the service adjustment in early April but no change. Taking it in for another fix.
71260 mi	Excess oil consumption. Dealer did a measurement. There is a class action law suit Audi has settled on excess engine oil consumption. Problem still not resolved on the car. I'm taking it in again.
72840 mi	Excess oil consumption. Dealer still had not resolved it per Audi of America directions.
77480 mi C $1700	Excess oil consumption-went Audi court settled repairs for warrantied Piston rings, bearings replacement. Covered by Audi. Car still consuming excess oil-going back to dealer for test I paid for timing chain, oil pan and carbon cleaning.
80600 mi	Additional repairs for excess oil consumption. Car was tested and rings, piston and oil cover were replaced. Appears to be fixed.
83080 mi C $900	After piston replacement job done by Audi, the timing cover chain was leaking oil. It required a warranty work Intake manifold issue sensor not working within parameters. Engine light coming on. I had to have the intake manifold replaced.

105000 mi

Total engine replacement. 2012 Audi A4 engine put in. This was due to the notorious Audi Oil Consumption problem noted in previous year models. I had the car back from this repair for two weeks when the 2012 engine then blew on April 4th. Two weeks after the installation of a 2012 engine into the 2009, the engine blew again on the highway.

108800 mi

US $7000

Engine Replacement: catastrophic failure due to tensioner failing

91000 mi US $2500	Computer system issue
195000 mi US $8200	Blown timing chain. Full engine replacement.

49000 mi

turbo assembly and water pump replaced.

74000 mi US $85	Known oil consumption issue with this 2.0t engine. Took in for Stage 1 and Stage 2 repairs. Oil use was 0.5l/1000mi. Received new pistons and rings. So after 500mi, no oil consumption issues.
84000 mi US $400	Intake manifold leaking. Redesigned intake manifold installed. Audi paid for one-half of bill as car is only 4 months out of CPO warranty.
107000 mi US $1800	Rear main seal leaking. Rear main seal replaced.
118000 mi US $110	Heating element on the upstream O2 sensor failed. Replaced sensor.

1800 mi

Bad water pump. Waiting on part from Germany. Total time in the shop will be over 2 weeks.

33000 mi	Replace crankcase pressure regulator valve
33900 mi	Replace camshaft adjuster. Preventative. The car showed no symptoms. The dealer just volunteered to do it.

15500 mi	vacuum hose replacement (hose was cracked and was throwing codes).
44640 mi	turbo - wastegate repair. No charge - recall, extended warranty item. Scheduled appt, then got CEL before taking it in. Engine performance much better.

25000 mi	Flash the ECM to update the software
30000 mi	Oil Consumption in excess of manufacturers recommended add levels.
31000 mi	The car failed the oil consumption test parameters and has been slated for new piston rings.
31800 mi	The auto failed an oil consumption test and subsequently had the piston rings replaced due to faulty tolerances.
51000 mi	The turbo waste gate was not operating correctly
68700 mi	A long block had to be installed due to the camshaft being out of alignment and ruining the engine. The fuel line was connected improperly to the GDi pump.
93000 mi US $400	Turbo was not spooling sufficiently. Temporary fix: reflash.
103000 mi US $4775	Turbo went bad and had to be replaced
111000 mi US $625	Replace alternator pulley and belt
113000 mi US $1400	catalytic converter failed and replacement failed and car had to use California emission catalytic converter to stop fault codes

63000 mi

US $107

water pump replaced.

18000 mi	Found runner assembly in intake manifold was loose causing vacuum leak
18700 mi	Installation of ordered part, car now runs normally

5000 mi	Key occasionally does not release from ignition slot upon turning off the engine. When warm, engine causes car to shake slightly when in gear and releasing the brake pedal, as to accelerate from a stop at a stoplight.
13000 mi	Key fob was stuck in ignition, could not be removed, car could not be shut off. Key extracted, switch should be OK, but cosmetic plastic "gateway" for fob was broken during extraction, and has not been replaced.

25700 mi	Occasionally, the transmission won't upshift from the 2nd to 3rd gear. Dealer refreshs the TCM.
38000 mi	Coolant slow leak, dealer replaced water pump assembly.
47000 mi	15D6 RVU for camshaft adjuster and camshaft replacement Tech found vacuum pump leaking and replaced vacuum pump
48000 mi	fuel pump and camshaft follower were replaced because of engine noise during acceleration
58300 mi	Oil leak from timing case cover seal

41000 mi	Faulty ECU, caused battery to completely discharge. Dealership replacing under warranty.
60000 mi US $900	replaced both cooling fans due to failure

60000 mi

US $62

Engine control unit

47000 mi	Needed a new turbo. Out of warranty time wise but within warranty mileage wise. AOA covered the repairs after a little nudge from me.
68000 mi US $1000	Needed a new water pump

74000 mi

US $2830

Replace water pump due to coolant leak Replace faulty motor mount due to hydraulic fluid leak

38000 mi	The car felt like it was stalling while driving and prior to stopping. Software was updated to repair problem.
46500 mi	Low oil light would come on frequently even after filling up. Software was installed to correct.

28000 mi

Excessive oil consumption (1 pint every 2000 miles). Dealer said within normal range, but Audi suggested a computer reflash and replacement of some parts. Excessive oil consumption described in problem 1. Parts installed.

15000 mi	Blinking CEL, no power under boost, white exhaust and fuel smell, and rough idle. Was able to drive to dealer. Dealer found bad fuel injector. Part was back ordered, once dealer received part, was fixed that day.
26000 mi	My intake manifold was leaking and they replaced the gasket I believe. Running great now!
62800 mi	Oil consumption test. "Passed test". No repairs offered, told to add oil as needed.

17700 mi

US $500

Car using over 1 quart of oil every 500 mi.

55180 mi C $1	Oil consumption
80600 mi C $250	Fuel injectors replaced (x2). Carbon cleaning.
84320 mi C $250	Piston rings and Pistons replaced for oil consumption

32000 mi

Replaced "camshaft adjuster-in ELSA" under warranty

7000 mi

ignition switch replaced

65100 mi	Conducted Part 1 of 2 part 2.0 TFSI engine oil consumption test for excess oil consumption.
68000 mi	Part 2 of oil consumption repair. Replaced pistons and rings due to excessive oil consumption.
116000 mi US $950	Water pump failed and replaced.

22000 mi

slowly losing coolant with no apparent cause or location

48000 mi	Intake manifold replaced - valve popped out replaced leaking water pump
50000 mi	engine running rich - high pressure fuel pump replaced
76000 mi	oil consumption TSB stage 1 and 2 - replace breather valve - replace pistons/piston rings camshaft damaged - replaced timing chain stretched and damaged - replaced

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104160 mi

R 80000

I was experiencing excessive oil consumption so all four pistons were replaced with OEM parts by the dealer but I had to pay the full price for the repair.

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30000 mi	TSB related to camshaft - completed same time as scheduled maint.
55300 mi US $330	Engine misfiring during boost
57000 mi US $125	Failed PCV - replaced with updated part 06H103495AC. Confirmed after replacement that the gasket inside had torn. Common problem - under 1 hour DIY.
51000 mi US $1600	Clutch slipping. Could have driven for thousands of miles if I baby it. Replaced with ClutchMasters FX350 and retained flywheel which was in good shape. Cannot fault Audi for failure - my car makes far more power than stock.

51460 mi

A $180

Replaced air intake sensor. Engine warning light came on and stayed that way. 2 trips to attempt repair required. 1st attempt was just reset of codes and test drive.

27000 mi

US $45

updated variable valve system

97000 mi

US $2500

Crack in water pump.

68000 mi US $85	Part I of Oil consumption test including replacing breather valve and seals. Replaced water pump.
70000 mi	Part 2 of oil consumption test: failed Replacement of pistons and piston rings. Car started bucking at 3-5 rpm. Took to shop, but no check-engine lights came on. No fault codes found in computer. No repair made. They suspect bad fuel as the culprit.
75000 mi US $540	Car acceleration not smooth, surging with wide open throttle. Low pressure smoke test showed a leak in the engine cover/timing belt cover. 1 day to diagnose. 1 day to install new parts.

43000 mi	stage 1 oil consumption repair performed. Returned after 800 miles for consumption calculation. no further repair needed. two trips to the dealer.
61000 mi	check engine light went on. scan indicated intake manifold fault. intake manifold replaced. covered under the 7/70 california emissions warranty.
98000 mi	Rear main seal leak ... also pcv failed. estimated cost of rear main seal $1000-$1100. i authorized replacement of clutch and resurfacing of flywheel, as the addtl labor cost was nominal, and clutch was nearly 100k old. replaced failed pcv myself.
103000 mi US $200	rat or other animal ate thru the wiring on a sensor ... car would not start ... wiring in a difficult position, so a mechanic's involvement was needed.

31000 mi	Check engine light came on and indicated intake manifold problem. After testing determined flaps inside intake manifold were loose. Replaced intake manifold.
75700 mi US $900	Check engine light. Indicated misfire in 3 cylinder. Determined to be carbon buildup on valves. Cleaned valves. Significant improvement in mpg noted and engine running very well
85000 mi US $531	vent valve sticking and drawing oil from rear seal - replaced and updated computer
105000 mi US $450	Completed Stage 1 oil test and failed. Installed new rings and pistons. Serpintine belt failed
151000 mi	Timing chain broke or stretched requiring engine replacement.

89000 mi US $6000	Complete replacement of the head
89000 mi	Check engine light on for the 6th time in 3 years.

19220 mi	Damaged / missing intake manifold. Noticed due to engine stalling when turning on a side street (dangerous!!) and whole car shaking on idle. Parts ordered once diagnosed by dealer then replaced next day.
68200 mi C $400	exhaust clamp broke and had to be replaced. Discovered the problem, drove 40km to garage and exhaust almost fell.. had to wait for part to come in.
71920 mi C $1500	Excessive oil consumption. Will have to see if I can get it covered by the dealer. water pump was cracked. excessive oil consumption. did stage 1.

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90700 mi

Leaking oil after an oil change; oil drain plug is stripped and slight crack on oil pan. Mechanic replaced oil drain plug and sealed the oil pan.

34720 mi

C $1800

Replaced leaking fuel injectors and spark plugs. Replaced leaking coolant line.

11000 mi

Reverse Error Jerky shifting in low gears (automatic) Vibration in wheel at high speeds

97340 mi

C $4000

Fuel injectors plugged. 7 hours of Audi labour + parts = CDN$3300!

110000 mi US $6000	Several other parts replaced that were leaking oil. Oil change. Fan unit replaced. O2 sensor replaced.
114000 mi US $800	Radiator was punctured somehow. Discovered because coolant was leaking. Replaced radiator, and everything was fine

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101000 mi

US $3700

Car had.a rough idle and had to replace head gasket.

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30000 mi	Check engine light came on. Dealer updated software and reset engine light. Light came on again.
36000 mi	Check engine light came on. Cleaned fuel injectors and reset indicator.
129300 mi US $3100	motor mounts - replaced
131000 mi US $2109	Valve cover gaskets

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14880 mi	Collapsed engine mountings. New engine mountings fitted. Drive chain noisy, also replaced under warranty.
16740 mi	Camshaft chain and additionals related to camshaft chain. Car sat for three weeks waiting for parts from Germany.
27280 mi	Gasket and valve tsb. New turbo ordered to be fitted, whistling.
31000 mi	Car using excessive oil (500ml/1000kms). Previous TSB hasnt resolved issue. Seem a new TSB is out so car has to be rebooked for work to be done.

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37200 mi	Engine check light was on, and the engine was consuming about 1 liter per 1500 km, a turbo valve was replaced
37200 mi C $59500	Engine check light was on, turbo system was faulty, part was not in inventory, so part had to be ordered. turbo was replaced in 5 days.

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2009 Audi A4 / S4 / RS4 repairs by problem area

2009 Audi A4 / S4 / RS4 engine repair cost distribution

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