Catalytic converters (2 front) need to be replaced. And the check engine light is on steady, indicates engine misfire. *Tr
Engine & cooling
1999 Audi A6 Engine problems
Owners have filed 17 complaints about the 1999 Audi A6's engine & cooling with NHTSA - 8% of all its complaints, most recently on April 17, 2011. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 17
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
1999 Audi a6 avant with serious safety issues. Consumer would like audi to pay for the last 4 repairs that needed to be done. Consumer has had some serious safety issues with this vehicle and states that it is a lemon. *Kb there was a rumbling noise coming from the engine, there was an oil leak coming from the engine, the engine light illuminated due to a bad pipe, the front rotors and pads were replaced, the transmission was leaking, the back wheels were dragging so the pads would not release, the brake and abs...
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light illuminated, the cruise control was inoperative, t he sunroof was inoperative, the tie rods needed to be replaced, the timing belt, water pump, gasket oil cooler and serpentine belt were all replaced. *Jb
1996 Audi a6 customer states that the catalytic converter has been replaced twice and still having problems**cc the consumer was informed that the after market muffler he purchased didn't work well with audi's and it was recommended that the consumer only use a factory catalytic converter. *Tr
Audi a6 customer states that after receiving a recall notice she took her car in for repairs and was given a larger bill for other things that need to be repaired**cc the consumer stated the dealer made repairs to the steering and engine. Update *tr
Tl* - the contact purchased a 1999 audi a6. On march 19, 2007. The contact explained that on march 20, 2007 the check engine light turned on for the first time ,and that there was burnt smell coming from the engine. The dealer stated that there was air in the gas lines. On march 21, 2007 the air conditioner stopped working. On march 22, 2007 the check engine light turned on a second time. The vehicle was taken back to the dealer. The contact was told that the air conditioner needed to be repaired, and that...
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the engine hoses needed to be tuned. On march 24, 2007 the vehicle would not start. The dealership transported the vehicle back to the repair shop. The contact was told that this problem was due to a bad battery, the hoses were adjusted. They were only waiting on the parts for the air conditioner. The contact had informed them that there continued to be a strong burnt smell coming from the engine. On march 31, 2007 the contact took the vehicle back to the dealership to have worked on the air condition unit. On april 1 the contact heard a loud fan noise from under the hood when she started the vehicle. On april 4, 2007 the contact called the dealer and was told that all vehicles go through a 25 point inspection before sales. On april 7 the vehicle was taken to a professional dealer, where the contact was informed that there were leaks on the front and the back of the engine. All engine cam seals, hoses, and abs module need to be replaced . The repair costs would come to over $5000.00. The contact wanted to file a complaint against americar trading company 501 north thompson, spring dale ar, 72764 (479-927-0333) since they did not report that these problems existed on the vehicle prior to the sale. The dealer has not returned the contacts calls after this last failure. The failure mileage was 120,049, and the current mileage was 121,594. *Ak updated 07/17/07. *Jb
The flex joint which is attached to the catalytic converter running into the engine has developed a leak.
I had a leak in the cam seal and it seems that a lot of others have experienced it in the audi forum.*Ak
While driving, the check engine light appeared on and remained on. The driver noticed that the vehicle would hesitate while driving. The driver was able to drive it to the dealer for inspection. The mechanic informed the driver that the sensor needed replacement. Please fill in additional information.
Water pump failed suddenly at 56,000 miles while on vacation trip. Car immediately overheated, and was not drivable without risk of serious damage to engine. Occurred several hundred miles from nearest audi dealer. Cost to replace over $600 plus $400 for hotel & food for two nights (work performed by local vw dealer becuase nearest audi dealer several hundred miles away; had to wait overnight for parts to come from audi dealer; audi usa will not warrany vw's canada's work, only parts, even though audi is a...
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subsidiary of vw). Numerous reports of same problem (water pump failure at low miles) at audi owners site www.Audiworld.Com; audi owners manual suggest water pump service at 90,000 miles. Car serviced per audi's recommended schedule & usually by dealer. *Ak
Cam seals and main seal both failed and cost over $2000 to repair out of warranty. Very upset since the car only had 58000 miles on it.*Ak
Unintended acceleration -- car accelerated rapidly. Would not slow even when driver's foot was not on the gas. Engine revved rapidly and would not return to normal idle speed.
Consumer smelled a burning odor while driving. Upon inspection of vehicle they noticed that oil was leaking onto the exhaust system, and the oil pressure escalated. *Ak
Engine oil leaks. Wife (main driver of vehicle) reported strong smell of burning oil. Dealer mentioned that this is a common problem and that manufacturer has covered repair for other owners. Manufacturer declined assistance for our model year (1999 with 37,000 miles) even though they would approve a 2000 model year with up to 62,000 miles.*Ak
1999 Audi a6 2.8 Liter catalytic converter failed at 93,000 miles november 2003. Interior of catalytic converter is loose and rattles very loudly, the check engine light is on, meaning the the emissions component is ineffective. Dealer states out of warranty. *Ak
Engine oil leak: driver side valve cover leaks after cam seals, water pump, and timing belt replaced. Vehicle now has 95,000 miles. Valve cover gasket on that side replaced 2 times each time only lasts one week before oil leak develops. Worse leak each time.*Ak
Engine has leaks in the crank seal housing,cam seal and the transmission seal. The seals seem to fail at a high rate.
Consumer states has had an oil leak between engine and transmission for the last 3 years. Inspected by dealer who replaced head gasket, but problem reoccured. Ts
Audi A6 engine complaints by year
A6 engine problems, every yearSource: 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