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Engine & cooling

Audi A6 Avant Engine problems by year

19 complaints filed with NHTSA about the Audi A6 Avant's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Engine complaints by model year

YearEngine complaintsCrashesInjuriesRecalls
20112000
20103000
20085000
20075000
20044110

Latest A6 Avant engine complaints

2011 Audi A6 AvantElectrical systemAcceleration & cruise controlEngine & cooling

The car throw a EPC warning light which cause the car to go n limp mode. With doing research ot has to do with the transmission. This cause the car to drive sluggish unable to reverse at times unable to take the car out of park at times. It also cause the car to randomly shut off when reversing or at times when im sitting at a light n i begin to drive the car can randomly shut off at times. Which in my open is unsafe because what if the the person behind me isnt payimg attention and i get rear ended. Ive reached...

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out to Audi dearlership is was told a part was discontiued and to bring it in for them to further diagnostic it. Ive had the codes read and im getting the symptoms of the code i pulled but told that part was discontiued. So i feel like if thats the case Audi should have did a recall on the car.

Filed Incident Electrical system · Vehicle speed control · EngineNHTSA 11744229
2011 Audi A6 AvantElectrical systemEngine & cooling

2011 Audi A6 seems to be overlooked compared to the rest of the Audi's yet the Audi has so many different issues such as timing chain such as water pump, such as brake issues, such as rack pinion yet there hasn't been anyone investigating this in particular make a model it needs to be done for safety reasons. Additionally, I was never contacted for the airbags cars registered DMV and nobody has bothered to inform me of the New airbag issues. What other issues are there brought to one's attention?

Filed Incident Electrical system · Unknown or other · EngineNHTSA 11717713
2010 Audi A6 AvantEngine & coolingFire

Tl* the contact owns a 2010 audi a6. While driving 45 mph, the vehicle overheated and steam appeared under the passenger side of the hood. The vehicle was taken to an independent mechanic who diagnosed that the coolant system needed to be repaired. The vehicle was not repaired. Neither a dealer nor the manufacturer was notified of the failure. The approximate failure mileage was 113,000.

Filed Incident EngineNHTSA 11142320
2008 Audi A6 AvantEngine & coolingFire

Tl* the contact owns a 2008 audi a6. When the vehicle was started in the driveway, a wobbling sound was heard. The vehicle shook violently and smoke emerged from the tail pipe. Also, the temperature gauge started to rise and oil started to flow backwards to the top reservoirs. The vehicle was turned off. The dealer (audi bedford in bedford, ohio) had the vehicle towed to their facility for diagnostic testing. The dealer diagnosed that the engine was working to standards. The contact also stated that the entire...

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original engine was replaced in september of 2010. After the repair, the vehicle started hesitating when the accelerator pedal was depressed, and would even stall at times. The manufacturer was notified of the failures and refused to repair the vehicle again. The approximate failure mileage was 57,000.

Filed Incident EngineNHTSA 11015552
2008 Audi A6 AvantEngine & cooling

Tl* the contact owns a 2008 audi a6. While driving various speeds, the engine stalled without warning. The vehicle was taken to a local dealer (fred baker porsche audi 194000 rockside road, bedford, oh 44146) where it was diagnosed that the engine failed and needed to be replaced. The vehicle was repaired, but the failure recurred. The local dealer replaced the engine again. While the vehicle was parked, the engine seized. The vehicle was not repaired. The local dealer confirmed that the chambers to both the oil...

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and antifreeze where shattered, which caused them to mix. The manufacturer was notified of the failure and provided no assistance. The vin was unknown. The failure mileage was approximately 300.

Filed Incident EngineNHTSA 11010929
2004 Audi A6 AvantEngine & coolingFire

Tl* the contact owned a 2004 audi a6. While driving at 20 mph, smoke appeared from the engine compartment and the vehicle caught fire. A police report was filed and there were no injuries reported. The vehicle was destroyed. The vehicle was not included in nhtsa campaign number: 06v198000 (electrical system). The manufacturer was not made aware of the failure. The failure mileage was 103,000.

Filed Incident EngineNHTSA 10724137
2007 Audi A6 AvantEngine & cooling

Purchased an audi a 6 2007 4 years ago. It turned itself off in drive mode 2 months after purchase. This has continued sporadically. It happens after driving the car for some time and then coming to a stop. I press on the accelerator to proceed and the car moves forward. By then, I am out in the intersection or in a lane with oncoming traffic. The mil light goes on, indicating the engine is turned off. There is no power steering and no way to move forward. The car's gear selector is still in drive mode. This is...

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very dangerous. Have been to 2 dealers who say they can not find any fault codes so they can't fix it. Audi says without a fault code, they are not responsible. $40,000 For a car that broke 2 months after purchase and audi is not responsible? *Tr

Filed Incident Engine and engine coolingNHTSA 10426775
2004 Audi A6 AvantBrakesEngine & coolingAirbagsCrash1 injury

Tl*the contact owns a 2004 audi a6 avant. The contact stated that the check engine light had been illuminating intermittently. The dealer stated that the contact should not worry about the light. While driving 65 mph, the contact swerved to miss a deer and lost control of the vehicle. It began to rock back and forth and the brakes were inoperative. The contact hit guardrails on both the driver and passenger sides. The vehicle then tipped on its side and went into a ravine. The engine was still running and the...

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wheels were still spinning. The air bags did not deploy. The contact suffered injuries to the collar bone, ribs, a concussion, and lost teeth. The dealer stated that there could have been a problem with the computer. The vehicle was destroyed. The current and failure mileages were approximately 190,000. Updated 04/08/11

Filed Incident Service brakes, hydraulic · Engine and engine cooling · Air bagsNHTSA 10377974
2010 Audi A6 AvantEngine & cooling

2009 Audi a6 3.0T waterpump failed...Twice. Once at 8000 miles and again at 19,000 miles. *Tr

Filed Incident Engine and engine coolingNHTSA 10368688
2010 Audi A6 AvantEngine & cooling

2010 Audi a6 experienced massive sudden loss of engine coolant. Result was need to immediately stop car and shut down engine. Loss of coolant resulted in hot liquid spraying out of engine and reducing visibility. Required tow truck to get car to dealer for replacement of defective water pump. According to service manager who directed repairs, the original water pump had a plastic housing and these housings have been failing on many 2009-2010 audi cars. New water pump part has been changed to metal pump housing (reportedly). *Tr

Filed Incident Engine and engine coolingNHTSA 10361661
2004 Audi A6 AvantEngine & cooling

I am writing about my 2004 a6 avant, which has 78,000 miles. At a recent oil service at an independent garage, it was suggested that there was a problem with the catalytic converters. Exhaust was leaking from both sides, I was told. I took the car to my audi dealer, where they checked the exhaust system. The mechanic who examined the car concurred that the catalytic converters needed to be replaced. Under a federally mandated warranty, the catalytic converters are covered for eight years or 80,000 miles. Yet the dealer has declined to cover replacement because the "check engine" light was not on. I was given a repair estimate of $2,400. *Tr

Filed Incident Engine and engine coolingNHTSA 10356542
2007 Audi A6 AvantEngine & coolingFuel systemTransmission & drivetrain

Audi 3.2 Engine on a 2007 audi a6 (and same engine on a4 and other models) hesitates during acceleration, especially from a stand-still, such as a stop sign. Dealer states that the powertrain is designed this way, and that it is either the fsi engine which has a carbon buildup, or the cvt transmission. Either way, the hesitation and 2-3 second delay is problematic when at 4-way stops, or when making a left turn in front of oncoming traffic. The delay can lead to accidents. Also, there is a lot of info web about the fsi engines stalling from this issue (ie carbon buildup). *Tr

Filed Incident Engine and engine cooling · Fuel system, gasoline · Power trainNHTSA 10343549

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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