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Engine & cooling

2000 Audi A6 Engine problems

Owners have filed 21 complaints about the 2000 Audi A6's engine & cooling with NHTSA - 14% of all its complaints, most recently on July 9, 2010. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
21
Recalls
0
Crashes
0
Fires
0
Injuries
0
Deaths
0

Engine complaints

Engine & cooling

2000 Audi a6 4.2L v8 quattro engine cooling system failure. The plastic coolant pipe between the oil cooler housing and the engine block fails causing potential catastrophic coolant loss, overheated engine and potential fire. *Tr the plastic pipe hardens/crumbles with age, approximately 10 years and 135k miles. I replaced the pipe...It takes about 10 manhours. The replacement audi part is maybe $20 but it is still plastic. I replaced it with a billet aluminum part with double o-rings. Dealer wanted $2900.00 To repair!! I understand this part is on every 4.2L v8 on both a6 and a8 cars from 1998 to current 2010.

Filed Incident Engine and engine coolingNHTSA 10342338
Engine & cooling

I have had a lot of problems with my audi 2000 a6 2.7 Turbo emissions system. I was told I had a bad catalytic converter at 90,000 and they said it was not under warranty. I looked on the internet and found hundreds of complaints about the audi's catalytic converters. Why do they only last 80,000 to 90,000 miles? Then we have to pay $3,000.00 To fix it to pass the california smog tests? That is not fair. *Tr

Filed Incident Engine and engine coolingNHTSA 10332280
BrakesEngine & coolingElectrical systemBody, doors & structure

Model year 2000, audi a6 quattro wagon 4 instances of sub-standard equipment: 1) abs warning lights due to defective abs controller a very common problem which the manufacturer should be forced to recall. 2) Sub-standard materials used in the vent tubing in the engine compartment (cheap plastic that breaks causing increased emissions output harming the environment). 3) Dashboard warning display led faulty, a very common problem which the manufacturer should be forced to recall. 4)Plastic components in interior of the auto break easily poor plastic strength (ie cupholder, buttons etc). *Tr

Filed Incident Service brakes, hydraulic · Engine and engine cooling · Electrical system · StructureNHTSA 10208622
Engine & cooling

A strange noise from the engine compartment of a 2000 a6 audi began several months ago. The noise became progressively louder. I then suspected a water pump malfunction was forthcoming. The vehicle was taken to an audi dealer for evaluation. They determined that the water pump was defective, and recommended a replacement. Most people would not have recognized this noise and an on road accident could have taken place on a freeway when the engine would have overheated and seized. Since there was only 31500 miles on...

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the vehicle I am concerned that this type of problem occurred at all. Either the pump shaft was bent by an over tightened belt or the part was defective at manufacturing point. (The belt has never been adjusted after purchase). *Jb

Filed Incident Engine and engine coolingNHTSA 10168080
SteeringEngine & coolingTransmission & drivetrainLightsVisibility & wipersWheels & tires

2000 Audi ax6 axle broke, transmission is poor, left front rim cracked, rack and pinion worn, flood lights do not work, airbag, engine, electrical windows and sunroof failures. *Ts the inside lights did not work. *Jb

Filed Steering · Engine and engine cooling · Power train · Exterior lighting · Visibility · Tires · Wheels · Interior lightingNHTSA 10161586
Engine & coolingTransmission & drivetrainEquipment & accessories

I own an audi a6, 2000. The car has been in the shop for over 18 months and 2 1/2 years for a re-accruing check engine light. For over 50,000 miles the car has been serviced by audi and audi only. Recently the car went out of warranty, however the check engine light is still not resolved and both flow and audi have washed there hands of it. In-addition, I just recently lost my 4 and 5 gear and only after I took the car to a different dealer we found that flow audi has been doing bad work on the car such as...

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gluing parts back together (yes, gluing parts on a $55,000 car) and installing vacuum hoses up to the wrong parts. In-addition, they stripped out bolts and left them in place without fixing them, these bolts hold the engine together and in-place. (Ask me about my timing belt issue, to long of a story to write on a web-page). The bottom line is audi and flow audi refuse to warranty the car any further, however the check engine light is still not fixed and its showing new codes. I have much more information... Also, ask me about my a4 (better story) flow and audi have cost me over 8,000.00 In the last two months and I have called everyone from the top of flow to the top of audi. There is no customer service and no response. My new mechanic is will to talk as well... There are no lemon laws and there is no one to help the buyer. It seems like no-one will talk to me since im not buying a new car. I really need help and advice. *Nm

Filed Incident Engine and engine cooling · Power train · EquipmentNHTSA 10154339
Engine & cooling

The check engine light came on. The code for the light indicated a failed catalytic converter had failed, this was at 78k miles the dealer said that it must fail again before 80k mile to be cover under warranty. It failed again at 87k mile and now the dealer won't replace it under warranty. *Nm

Filed Incident Engine and engine coolingNHTSA 10151207
Engine & coolingFuel systemTransmission & drivetrainElectrical systemVisibility & wipersAcceleration & cruise controlWheels & tires

Near total loss of power (intermittent) 17 error codes in obd. New triptonic transmission 1 month after expiration of warentee. Extended warentee never offered by audi. Error codes include throttle housing and cam error. I have spent nearly $7,000 in 10 monthes on mechanical repairs and mechanic says that I need approximatly $6,300 more. Audi said that I can have the dealer run a dignostic at my own expense. Addition to the $6,300 need. Check engine light has constantly come on since purchase. Dealer siad that he advises customer many times to disconnect light. Constant repairs since ownership. Audi is not helpfull.

Filed Incident Engine and engine cooling · Fuel system, gasoline · Power train · Electrical system · Visibility · Vehicle speed control · TiresNHTSA 10126377
Engine & cooling

At 61,000 miles turbo charger shaft shattered resulting in catastrophic failure, immediate loss of oil throughout engine and exhaust, loss of drivability and serious fire potential. *Jb

Filed Incident Engine and engine coolingNHTSA 10108506
Engine & cooling

Both catalytic converters failed at 78,000 miles. Called and wrote to audi, wanting this covered under warranty; was told three different things regarding coverage (1. 'Don't know," 2. 7Years and 70,000 miles, 3. 8 Years and 80,000 miles.) Was repeatedly rebuffed. Cost $4600 to fix. Audi 2000 a6. Wrote to vice president - audi of america - axel meese - two months later response said no again and quoted some other warranty (3 years and 50,000 miles) in all my years of car owning, I have never had one catalytic converter fail, let alone two. I feel that this is a defective car, and think audi should cover the failure of the catalytic converters.*Ak

Filed Incident Engine and engine coolingNHTSA 10100658
Engine & coolingElectrical system

Turbo bypass and mass airflow replaced numerous times during the first 30k miles. Car in the shop every 2k...For one thing or another.*Ak

Filed Incident Engine and engine cooling · Electrical systemNHTSA 10090579
Engine & coolingTransmission & drivetrainBody, doors & structure

Consumer requesting assistance for a matter dealing with interamericana transport industries inc.*Mr after a new transmission was installed the consumer was still dissatisfied with the performance of the vehicle. Offensive odors have been emitting form the vehicle. These odors have made several members of the consumer's family ill. The door did not close properly. *Nm

Filed Incident Engine and engine cooling · Power train · StructureNHTSA 10083453
SuspensionBrakesEngine & cooling

2000 Audi a6 chronic "service engine" light illumination; oil leaks & valve gaskets repeatedly replaced (within 30 days); brake issues/front end vibration; engine rough when initially started. *Jb

Filed Incident Suspension · Service brakes, hydraulic · Engine and engine coolingNHTSA 10064582
Engine & cooling

At 65k miles, my baby daughter and I were driving 70 mph down vail pass on i70 in colorado when the engine light starts to flash. I then lose all power, brakes and steering due to a total engine and turbo failure. This problem was discovered to be caused by a water pump failure, causing the timing belt to fail, in turn causing the engine to completely seize. Audi refused to take responsibility for all the costs associated with replacing the engine and didn't lend any concern that this is a safety issue. I have researched various consumer sites and have found several comments describing this exact problem. *Cb

Filed Incident Engine and engine coolingNHTSA 10054246
Engine & cooling

The vehicles check engine light illuminated. The dealer refused to service the vehicle unless the consumer paid out of pocket, although the vehicle was taken to the dealer for service 3 days prior. The consumer paid for the check engine light service, in addition to the defective thermostat, which caused the vehicle to overheat one month after the warranty expired. Subsequently, three days after that service, the check engine light illuminated again. *Ak *scc *nlm

Filed Incident Engine and engine coolingNHTSA 10031449
Engine & cooling

Engine check light is on. Dealer has inspected vehicle five times and could not duplicate or correct the problem. *Ak

Filed Incident Engine and engine coolingNHTSA 10022924
Engine & coolingElectrical system

There were oil leaks, the consumer had to replace the turbo(s) at 37000 miles and needed a new turbo(s) again, and the engine and brake lights appeared on different occasions. Dealer stated the oil wasn't changed regularly. The initial turbo(s) were replaced with the old oil because the new oil wasn't covered under warranty. The service dealer stated that 1 out of 15 vehicle's have the same problem. Mr scc *jb

Filed Engine and engine cooling · Electrical systemNHTSA 10014871
Engine & cooling

Hello, 2000 a6 has an auxiliary fan on the 2.8 Engine. My audi was in warranty on 10/17/02, and it was brought to the dealer. The dealer was unable to duplicate the problem. The problem is the fan makes alot of noise, and the fan smells like a fire is happening..Now the local dealer, wagner audi in boyloston, ma checked the car, and will not cover it under warranty.. This should be checked out before someone is hurt in a fire from this audi a6 problem. Thanks, don melanson. *Nlm

Filed Incident Engine and engine coolingNHTSA 10014110
Engine & cooling

Cylinder heads (v-6, 2.7 Liter, 5-valve) are leaking oil from the ends in an area which is plugged with a "ball seal" pressed in place during mfg. Oil drips onto exhaust causing causing moderate to severe smell of burning oil inside and around vehicle. Dealer mechanics were able to locate problem by inserting special dye in the oil and checking with a blacklight, and state heads need to be replaced. Dealer denies defect and suggests this as a normal wear item, but there are no moving parts. I am worried about complete failure of the seals resulting in oil/oil pressure loss, extensive engine damage and/or fire. *Nlm

Filed Incident Engine and engine coolingNHTSA 10010522
Engine & cooling

The car makes a whining noise on cold start. It has been in for repairs since march 2, 2002. Zaumbach of manhattan has replaced the engine, turbos and water pumps due to possible leak. They cannot repair the car, they say the noise is still present. No one knows what the problem is and it may be dangerous.*Ak

Filed Incident Engine and engine coolingNHTSA 760925
Engine & coolingAcceleration & cruise control

For an unknown reason, when the vehicle is shut down after driving, then it's re-started the engin idles rough. At that time the engine check light come on, and the engines power is reduced. It won't go faster than 15 mph.

Filed Incident Engine and engine cooling · Vehicle speed control · Unknown or otherNHTSA 725667

Audi A6 engine complaints by year

A6 engine problems, every year

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

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