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Chart based on 109 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Breather assy, valve cleaning and main seal engine replacement
51500 mi
Vehicle was exhibiting excessive oil consumption due to factory defect in piston rings. Entire all four cylinders replaced with new rings under warrantee work.
115000 mi
car had oil consumption problem when we purchased it, previous owner did not disclose and it was 2k miles out of warranty. Audi would not extend or honor warranty outside of 80k.
Seperate issue- car lost power going up hill. Mechanic said it was the timing chain (supposed to be lifetime). He said they are repairing at least one timing chain a week because they "stretch out" and then fail. When they fail you have to replace the entire engine. Parts and labor quoted by several shops 10k-12k depending on if purchase a used or new engine.
We are going to walk away from the car. It was a pleasure to drive, beautiful, and we absolutely loved it. But we have a hard time with a company and/or product that has major defects and consumers are not told about it or have to pay for major design flaws. The car was a ticking time bomb.
78000 mi
Engine seemed to go through oil fairly fast, had to refill every 2500 miles or so. Oil consumption test was performed and cylinders were replaced under warranty
100000 mi
US $3800
Water pump Mixture sensor
40200 mi
Excessive oil consumption
53140 mi
Engine was leaking oil after the pistons were replaced under warranty.
73000 mi
US $1300
catalytic gasket replaced. regular service performed
77900 mi
Oil consumption test showed excessive consumption. Pistons & rings to be replaced. Head had gouge damage and was replaced.
82000 mi
US $660
A valve associated with crankcase ventilation developed a crack. Diagnosed & replaced. Also tire noise identfied.
36000 mi
Engine running very roughly, blowing black smoke, check engine light on, eventually car stopped completely. Car towed to dealer. Fuel injector on No.2 cylinder apparently faulty and was replaced.
37800 mi
Malfunctioning purge valve. Part replaced
45000 mi
Car has suddeny started using a lot more oil than usual (additional oil being required every 1,000 miles instead of the usual 3,000-3,500. Car was inspected for leaks and oil was changed.
77000 mi
Excessive oil consumption. Persistant problem since new. Set up for Part I oil consumption test over next 1,000 miles. Car has averaged 1700 miles per quart of oil and since first started monitoring consumption at 16000 miles.
78000 mi
Car has been using excess oil since new. They agreed to install new pistons and rings Water pump was leaking. News pump installed at no cost. Car is out of warranty but Audi is footing the bill for the new pistons and rings plus the water pump.
65000 mi
Oil consumption test. Also recheck the original software "fix". They will schedule a piston and ring job next. replaced pistons and rings, finally fixed oil consumption issue. Auxiliary water pump discovered signs of leakage while replacing pistons and rings for oil consumption. Dealer charged over $400 for part and 2.5 hours...$675 for repair
50220 mi
Had a stage 1 oil consumption test.
86800 mi
C $2000
Oil use problem . New pistons and rings done by dealer at 50% cost split out or warranty with Goodwill. I had timing chain and tensioner replaced at same time.
32300 mi
Oil consumption had gone up dramatically in the past year. I kept a record of when I added oil and mileage - and provided that info to the Service Mgr. They changed the front crank seal and a valve of some sort.
42000 mi
Dealer did part 2 of the oil consumption test, and my car passed that test, its using oil within limits.
59000 mi
US $569
Water pump was replaced - it was leaking slightly After failing the part 2 of the oil consumption test Audi of America instructed my dealer to replace the pistons and rings in my engine.
71000 mi
US $425
The PCV valve was bad.
84000 mi
US $100
I had codes P0441 and P2187 showing. The shop replaced the PCV valve under their shop warranty.
Replaced faulty fuel injector #3. Symptom: Engine suddenly ran rough, lost power, eventually flooded. Smell of gasoline fumes. Check engine light. Replaced faulty fuel injector #3. Symptom: Engine suddenly ran rough, lost power, eventually flooded. Smell of gasoline fumes. Check engine light.
31000 mi
Excessive consumption of oil, about 1 quart per 1k miles on average from time of purchase. Repeatedly told that this was normal for Audi's turbo 4 cylinder engines by the dealer. Consumption test performed then finally replaced pistons.
To high Oil consumption. Change valves and did consumption test.
37820 mi
Car was using excessive Oil. Engine was rebuilt with updated valves and rings.
46500 mi
A $2600
Engine valve collet broke. Valve entered the engine destroying the internals. Unclear if related to recent rebuild, Audi would not elaborate. Without dealer assistance the total would have been $28500.
Engine burned a quart every 1000 miles. Oil consumption test resulted in new seals and software update. Audi performed taillight seal recall
74300 mi
US $752
Replaced Air Intake Separator Tech noticed water pump leak on prior visit. Water pump replaced.
80700 mi
US $3100
Underboost CEL. Replaced turbo.
28520 mi
replaced crankshaft seal and PCV, oil consumption test, faulty injectors, carbon cleaning off intake valves. high pressure fuel pump losing pressure; update: misdiagnosis
53720 mi
Oil consumption, drinks 1Qt every 1000km
74400 mi
C $450
EVAP fuel line leak causing CEL. Decided not to fix it.
65200 mi
US $85
bad turbo bearings.
75400 mi
US $100
Failed pcv
93000 mi
US $10
Cam chain and tensioner failure. Both items replaced. Dipstick seal damaged. Showed up a couple days after having cam chain and tensioner replaced. I assume it was caused during the repair but I never accused and they didn't say. However I only had to pay for the seal and not labor or diagnosis.
106000 mi
US $115
Replaced upstream o2 sensor
34000 mi
TSB performed to address oil consumption issue.
77000 mi
Turbocharger was not attaining expected boost levels, so the turbocharger had to be replaced.
87000 mi
US $3500
Timing chain replacement
27900 mi
C $15
low oil. Added a quart after 5,000kms / 4months since last oil change. Dealer says oil consumption still within tolerance.
29140 mi
C $10
low oil warning came up and topped up with 1 quart.
35340 mi
C $800
Water pump failure. $300 parts. Rest labor.
54000 mi
US $900
Replaced leaky water pump
11000 mi
fuel injector failed and was leaking. put car in limp mode.
9000 mi
fuel injector exploded on freeway. car almost straned in ghetto of los angeles. limp mode home. fuel injector had to be replaced and loaner car given. had to work from home as i was on vacation for holidays...
40100 mi
catalytic converter failed at 41k miles. took 4 days to replace due to parts
43000 mi
PCV valve replaced and crankcase seals. stage 1 of EA888 oil burning
54000 mi
US $820
Failure of 1 fuel injector.
94000 mi
US $2000
Replace rear main seal Replace engine mount
28000 mi
US $1000
Water pump is started to leak slowly. I haven't had a chance to bring it to the shop for repair as I don't drive the car much. Repair cost quoted from $850 to $1175
69000 mi
US $2000
Valve burnout, rocker-roller push rod gave out and caused lack of compression.
78000 mi
US $335
Replaced pistons due to excessive oil consumption. This was warranty work due to the extended warranty (as a result of a class action lawsuit against Audi / VW Corp.).
61000 mi
US $50
During routine maintenance, water pump was found to be leaking and replaced under warranty.
63000 mi
US $645
Piston ring replacement was completed under warranty for excessive oil consumption. Added costs incurred during work to replace rear main, front cover seals and clean cam shaft oil bridge filters.
49000 mi
US $200
Known oil consumption-related problems with the 2009 and 2010 A4 2.0: top half of engine rebuilt with new valves, new turbo plus a timing chain tensioner replaced while the engine was out -- all covered by Audi save for the tensioner ~ $4500 total in repairs.
90000 mi
US $1600
PCV Valve failure caused an oil leak in the rear main seal. Repair costs associated with removing the transmission and replacing the main seal.
Water pump (plastic part defective on all early-2010 B8 S4s) leaking coolant.
7000 mi
CEL for secondary air pump. Reset CEL, could not duplicate.
8000 mi
Service bulletin for thermostat replacement.
310 mi
They had to replace the key part because it wasn't cranking the ignition.
1466 mi
US $750
replaced radiator from rock blasting a hole in the radiator. Customer pay.
18000 mi
TSB for thermostat. Dealer replaced
47000 mi
camshaft sensor caused check engine light to go on. Replaced under warranty
75700 mi
US $11000
Coolant in the cylinders
125500 mi
US $1800
emission sensor failed
132900 mi
US $400
Faulty coolant line
30000 mi
water pump failed and had to be replaced
40000 mi
the thermostat was replaced to prevent overheating
22000 mi
Water pump failure, managed to drive to out of town dealer for repairs before total loss of coolant
6000 mi
Water pump was replaced at owners request proactively by dealer as the water pump was in scope for the replacement. Very satisfied with the way Biener Audi replaced the water pump in under 2 hrs. while I waited without any hassles.
9300 mi
Thermostat was replaced based on Audi TSB where the thermostat could stick in the closed position, causing an engine overheating condition.
16000 mi
replace crankcase ventilation hose which cracked
15000 mi
Replaced leaking Water Pump
17000 mi
Engine light came on. Dealer diagnosed fuel injector problem. Replaced #1 fuel injector and reset engine light.
22200 mi
Thermostat replaced due to preventative TSB.
45200 mi
Check Engine Light came on with no obvious impact on vehicle performance. Dealer diagnosed a bad secondary air pressure sensor on Bank 2, ordered part and subsequently replaced the sensor under warranty.
73300 mi
Check Engine Light came on with no obvious impact on performance. Dealer cleaned secondary engine air ports. CE light came on again when picked up. Dealer diagnosed bad relay for secondary air flow motor. Replaced under extended warranty.
9000 mi
Known water pump/high pressure seal for pre-March 2010 build dates. Either the seal or plastic pump goes resulting in loss of coolant. Water pump replaced with metal pump the same day by dealership.
48980 mi
Secondary air flow low - repaired
82000 mi
US $1500
Thermostat needed replace car was overheating
2480 mi
Engine light came on. Dealer found fuel ratio imbalance error code. System scan performed. No problems found and no loss of power. Error code erased.
5880 mi
Engine light came on. Dealer diagnosed fuel injector problem. Replaced #5 fuel injector.
Thermostat replaced due to preventative TSB.
66000 mi
Secondary air injection cleaning performed under extended manufacturer warranty.
71000 mi
US $100
Replaced failed tstat and water pump Replace PCV to remedy high oil consumption
42000 mi
US $650
Thermostat (located under the supercharger)
64000 mi
US $2200
Right side catalytic converter failed
69000 mi
US $596
Crank pulley, accessory belt, super charger belt
53300 mi
Car overheat. Thermostat stuck open. Replaced thermostat.
16800 mi
Water pump and thermostat were replaced. Service bulletin, no symptoms.
15000 mi
Sudden water pump failure with loss of all coolant. Car towed to nearest dealer and repaired, all the the manufacturer's expense.
18000 mi
US $382
A "sport differential failure" warning light came on without any other symptoms. Computer scan revealed this was due to transient low battery power. Battery tested okay.
7000 mi
Thermostat replacement.
29000 mi
bad valves
25000 mi
Coolant level was low. Dealer did a leak check, no problem found. Added coolant, will monitor.
69000 mi
US $500
replaced coils and plugs since they were causing car to misfire
car was overheating and needed to replace thermostat and water pump.
33000 mi
Oil consumption was high. Brought it in for a 35,000 mile check one month ago - they said it was ok. Less than 1,000 miles later, it showed up as needing a quart of oil. They replaced oil separator and valves/gaskets.
43700 mi
US $100
Check engine light came on. Was a camshaft sensor that was broken. Would have been $290 + tax to repair at dealership, but I had an extended warranty.
53400 mi
US $658
Engine temperature kept on rising and low coolant warning came on once. Coolant level was fine. Faulty thermostat. Replaced thermostat.
65000 mi
Since mechatronics was replaced, had to push start button twice to start. Dealer followed TSB 20141242/2, updated the mechatronic control module software to 0009 via SVM.
5500 mi
Air fan was making a faint squeeking sounds. They said it was mal-aligned. Replaced under warranty. Rock perforated radiator. All coolant leaked within 15 mins. They replaced the radiator.
No cost, since i've only had car for a few months.
Very frustrating that audi does not protect radiator on such a car
Oil was being used to quickly by engine due to an engine oil valve
116000 mi
US $3000
Clutch and flywheel - put performance parts in due to slightly more than stock.
11000 mi
The engine thermostat was replaced
20000 mi
Oil consumption issue. Traced to loose filter.
27000 mi
Replaced pass. side downpipe, had a rattle inside at certain RPM's
47000 mi
US $10
Intake air temp sensor on passenger side has an implausable signal, MIL on, dealership diagnosed, sensor working to specification, reached audi tech line, sensor replaced per audi tech line.
46500 mi
Coolant thermostat failed. Previously dropped the car off when there were signs of something failing (radiator fan running at max speed) but dealer concluded "nothing wrong" as per their diagnostic tools.
105400 mi
C $1000
Loud whining, diagnosed to be the left lobe of the supercharger.
Supercharger replaced with new-used part and about 50% of the whining noise reduced, supercharger idle pulley replaced but the noise was still there but less, accessory belt tensioner replaced resolved the last bit of noise due to bad bearings.
8560 mi
Coolant dumped, had to replace water pump. Second trip to get coolant leak entirely fixed. Dumped coolant again 2km after first repair. They said I also had a hole in the radiator for the intercooler but I couldn't find any hole in the old part. Probably covering up a mistake with first attempt.
30000 mi
Occasional rough idle and odd vibration at just over 1000 rpm. Dealer said it was normal compared to other like cars.
2480 mi
Low oil warning light came on. Took car to dealer who topped up oil for free.
4640 mi
TSB issued for water pump prone to fail. Replaced by dealer under warranty.
5500 mi
Water pump blew leaving car unable to be driven. WP replaced
11000 mi
US $457
IC radiator punctured by road debris. Car flatbedded to dealer. IC radiator replaced. Tstat also replaced at that visit.
14000 mi
Coolant leak. Traced to cracked coolant hose. Hose replaced under warranty.
65800 mi
Excessive oil consumption. The dealership replaced the oil separator, which has solved the problem. Because the car had been involved in a recall in 2011 due to a coolant pump
issue, Audi of America extended the drivetrain warranty to 5 yrs/72K miles.
68500 mi
US $790
Erratic coolant temp and AC failure. Diagnosed as thermostat failure. Replaced thermostat.
77000 mi
CEL light on; diagnosed as defective bank 1 combivalve. Ordered part. Prior to part arrival, CEL cleared and did not return. Part not installed.
7000 mi
Complete loss of coolant due to failure of water pump seal. During the car's 5000 mile service, loss of coolant was reported to dealer, but they could not find the problem and simply topped off the cooling system.
thermostat repair and regular scheduled oil change. they did not install the oil filter correctly which forced a second trip to replace the filter and clean the engine bay of the leaking oil.
Plastic impeller failed on water pump. Know problem to Audi. Informed by Dealer that Audi are instructing dealers to wait for owners to notice problem and fix it rather than recalling cars. Reason: shortage of water pumps / impellers
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 2010 Audi A4 / S4 / RS4 problems occur, check out our car reliability stats.