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Engine & cooling

2002 Audi A6 Engine problems

Owners have filed 21 complaints about the 2002 Audi A6's engine & cooling with NHTSA - 22% of all its complaints, most recently on June 12, 2021. They describe 0 crashes, 1 fire and 0 injuries. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
21
Recalls
0
Crashes
0
Fires
1
Injuries
0
Deaths
0

Engine complaints

Engine & coolingFuel system

When I first got the vehicle it would start with no issues and now it wont start an I cant figure out why and not sure if this is the reason I cant think of what else it could be it acts like its not getting any fuel or something to get started.

Filed Incident Engine · Fuel / propulsion systemNHTSA 11420657
Engine & cooling

I parked my car to detail it and after I went to drive to the store and my car wasn't reaching above 4000 rpms and wouldn't go over 60 mph ...Its acting like there is a rev limiter and throw 2 new codes...Never got engine bay wet jus outer body of vehicle ...Diagnostic codes are p0322 and p0421 I believe one is for the engine ignition distributor no signal and also catalytic system below threshold bank 1 .....After I parked car again I tried to start and nothing happened ....I've bout new c.O.P's ....And still...

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nothing I was driving my vehicle when this happened and also notice that the fuel filler just inside the port was all cracked and when I filled with fuel its leaked alot of my gas ...The *tr

Filed Incident Unknown or other · EngineNHTSA 11325248
Engine & coolingFuel system

I recently bought my audi and throughout the summer it drove just fine, but once winter came around and the temperatures dropped, I noticed the smell of gas in my car as soon as it was started. I opened the hood and there was gas spraying from what looked like all six fuel injectors. So I took the car to a mechanic, where they replaced numerous things (fuel pressure regulator, o rings, valve system, and all 6 fuel injectors) all to no avail. Nobody can tell me what is wrong, nobody knows. I called audi and they...

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told me I could take it to a dealership but that they couldn't promise they can fix the car. I can't drive the car, it is a safety hazard. I have looked on many forums and there have been a few other people with the same problem but nobody can figure out what is wrong. Is there a recall, or any information you can give as to how to fix this problem?? *Tr

Filed Incident Engine · Fuel / propulsion systemNHTSA 10499473
Electrical systemEngine & cooling

The audi was stopped at a stop light when the rpm meter started to drop revs suddenly. Once the car was in motion the engine felt rough. The car was driven 3 miles with no further incidence and was parked for the night. The next day when the car was started in the morning the check engine light came on and the engine started to get very sluggish and shuddering. The car was immediately stopped and the diagnostic codes were pulled. The codes showed multiple cylinder misfires with specific misfires in cylinder 2 and three. The car was towed to an audi dealer where this was confirmed. The dealership mentioned that there was a voluntary recall for exactly this issue. This is a safety issue. *Tr

Filed Incident Electrical system · EngineNHTSA 10479603
Acceleration & cruise controlEngine & coolingFuel system

This car has been great to me. Aside from a fuel pump going, just recently I was driving on the freeway and the car died. The epc light on the dash popped up and luckily I was able to coast to the side of the road. I attempted to start the car several times before calling aaa (15-20 min) while on the phone with aaa I attempted to start the car again and it fired right up. Thinking it was just a one time issue I got back on the freeway where 10 mile or so later same the same thing happened. Another 20 min of...

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waiting before it cranked again at this point I was in a b ad area with my family and everyone was getting nervous. After it started the epc light stayed on this time and I experienced loss of power and the car coughed and stumbled terribly when I needed it most. I managed to make it home and let the car sit for a day. Hoped in and it cranked right up. No problems 15 miles later it happened again. After talking with other valued audi owners and looking over the audi owner forums. I have found this to be a quite common problem with the audi across the range of there a series from 1997-2011. Please help! *Tr

Filed Incident Vehicle speed control · Engine · Fuel / propulsion systemNHTSA 10458209
Engine & coolingFuel systemElectrical system

My check engine light is marking misfire but I have gotten a complete tune-up, changed all 6 coils on the engine changed all the spark plugs, I've done everything possible and changed everything I can that has to do with the engine all brand new and nothing has worked and its still saying misfire...I've googled this problem for audi's and there were so many people complaining about the same thing... Also, I am having a problem with the electrical system as well one day my windows work the next it doesn't sometimes...

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my lights will work and sometimes it doesn't, sometimes my radio will work some times it doesn't, the information on my dash sometimes doesn't light up and I can't see anything at night time, I have constantly been to the mechanics trying to figure out what's going on but we can't find the problem, I've spent so much money on this car trying to fix the problems but its really making it hard for me to keep spending money on my car and not being able to figure out what's wrong with it. This is very dangerous because if I'm driving at night time and my lights end up not working I can cause a very big accident I am very very concerned about these defects, my safety and others safety and would really appreciate if you can please investigate this problem because its happened to so many people. I also think something is wrong with the fuel system I'll put $60 in gas and two days later it'll almost mark empty I really don't understand how that is possible but if there's an answer I would really want to know. Thank you so much and I really appreciate your time. *Tr

Filed Incident Engine and engine cooling · Fuel system, gasoline · Electrical systemNHTSA 10430871
Engine & cooling

Tl* the contact owns a 2002 audi a6 quattro. The contact stated that the vehicle was taken to the dealer for repairs to the ignition coil under an unknown recall. The dealer performed a diagnostic and advised that the catalytic converter was failing. The manufacturer was contacted and advised that because of the mileage and age of the vehicle, they were unable to offer any assistance. The vehicle was not repaired. The failure mileage was 103,000.

Filed Incident Engine and engine coolingNHTSA 10394322
Engine & cooling

Tl*the contact owns a 2002 audi a6. While the vehicle was being inspected for emissions 01/10/2011, the contact was informed that the engine was misfiring due to a defective coil. The failure led to damage to the catalytic converter which needed to be replaced along with the coil. The local authorized dealer replaced the coil. The contact called the manufacturer who offered no assistance. The converter was not replaced. The failure mileage was 99,370 and the current mileage was 99,410.

Filed Incident Engine and engine coolingNHTSA 10383128
Engine & cooling

Tl*the contact owns a 2002 audi a6. The vehicle was taken to the dealership on june 4, 2010 for the manufacturers voluntary coil spring recall; however, the defected coil springs caused the catalytic converter to fail. The catalytic converter was replaced; and the coil spring repair didn't correct the failure. The vehicle lost power while attempting to accelerate. The vehicle was taken to a local mechanic who located the failure as the vehicles six engine cylinder. The manufacturer was contacted advised the contact that they would not reimburse him for the catalytic converter. The vehicle wasn't repaired. The failure mileage was 90,476 and the current mileage was 93,400.

Filed Incident Engine and engine coolingNHTSA 10368493
Engine & cooling

Driving on highway when engine started running very rough, engine light came on. Stopped and consulted manual regarding engine light, said to drive at reduced speed to audi dealer. Engine ran rough, floor of car heated up, smoke and odor started coming from exhaust. Dealer had to replace ignition coils, catalytic converter and o2 sensor. Consequences: car became interoperable and extreme toxic air pollution. *Tr

Filed Incident Engine and engine coolingNHTSA 10316904
Engine & cooling

On 02/21/09 I purchase a 2002 audi a6 3.0 In frederick, maryland for the amount of 5,808.00. I drove back the vehicle to selinsgrove, pa I almost did not make it. I noticed a lots of white smoke coming from the exhaust system and the car was shaken really hard. I pulled over cause the check engine light came on. Then I has to get out of the road 11/15 as soon as possible so I only could drive 40 miles per hour or the car will shake more. I purchased the vehicle with a personal check. I want this vehicle back to...

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the dealer as soon as possible. I do not want it . Can I cancel the check? I have a senior bank account and I wrote the check for $5,808.00 To south street auto sales in frederick, maryland. I will write a review online to consumers about the bad business of this dealership. *Tr

Filed Incident Engine and engine coolingNHTSA 10259604
Engine & coolingElectrical system

2002 Audi a6 with a belt failure. Consumer states that he did research about this failure and found out other people have had the problem too. He stated that when the water pump and thermostat was replaced or fixed the timing belt was not. *Kb the consumer stated his engine overheated and smoke began to emit from the engine. The consumer was informed the water pump to the coolant wasn't functioning properly. Prior to the incident, the check engine light illuminated, faulty coils were replaced and the vehicle had a leaking coolant bottle. *Jb

Filed Incident Engine and engine cooling · Electrical systemNHTSA 10220593
Engine & cooling

Tl*the contact owns a 2002 audi a6. While driving 25 mph, the engine shut off without warning. The vehicle was restarted after four attempts. There were no warning indicator lights until after the vehicle restarted. The esp warning indicator light illuminated. The vehicle is currently at the dealer. The current and failure mileages were 82,000.

Filed Incident Engine and engine coolingNHTSA 10209928
Engine & cooling

I am concerned with the safety involved with the catalytic converter on my audi a6. My check engine light appeared and I took it into my local mechanic who showed the fault as the catalytic converter. I then took my vehicle to the local audi dealer where they insisted it was the oxygen sensor. I then had this replaced and audi verified that everything was correct. Once again my check engine light appeared 200 miles later and I took the vehicle back to the audi dealer. I requested that they check the catalytic...

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converter again and they insisted that it was once again the oxygen sensor. The warranty on this part is approaching the end. I asked, "if this is once again replaced and the light comes on again in a couple hundred miles, my warranty will be up, will you cover it? Their response was, "if it is one mile past the warranty, we don't have to cover it." From this comment one would conclude they are giving me the run around until my warranty is up so they will not be held responsible. My concern is that audi is failing to comply with a federally mandated warranty. They simply do not want to replace the converter which is placing my life in danger considering a car can catch on fire if the catalytic converter is not working properly. *Jb

Filed Incident Engine and engine coolingNHTSA 10206150
Engine & cooling

My engine failed while driving at 35 mph on route 375 in woodstock, ny. The failure was a result of assembly bolts on the reverse side of the exhaust cam shaft variable valve timing sprocket loosening and falling out against the cylinder head, stalling the the camshaft and breaking the timing belt. Inspection of bolts show neither a lock washer or thread lock adhesive were present to prevent the loosening due to heating and cooling or vibration. Further service of bolts cannot be performed as there are no...

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tightening specification for these bolts. An easy fix for this mechanical failure would be to remove both valve covers and replace the bolts on the timing gear sprockets with new bolts with adhesive on the threads. This is an interference engine, which results in a catastrophic failure in the bending of valves and total engine destruction. *Tr

Filed Incident Engine and engine coolingNHTSA 10188943
Engine & coolingFire

After a short drive (about 3 miles in town), the car was pulled into my garage a few minutes later my wife noticed smoke coming from under the hood. I backed the car into the driveway, opened the hood and significant white smoke with the smell of burning plastic came from the passenger side of the engine compartment, below the engine, near the firewall. I used a garden hose to extinguish the fire. I could not determine the exact origin of the fire. On monday, june 27th I reported the incident to audi of...

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america. A reference number of 50231796 was assigned by audi to the incident. On june 29th I was contacted by james cruz at audi who told be that he would be turning the incident over to engineers who would decide what they wanted to do next. On july 5th james cruz called me back and said audi was not interested in doing any other follow up and that I should just file a claim with my insurance company.

Filed Incident Engine and engine coolingNHTSA 10128710
Engine & cooling

Audi a6 3.0 2005 68,000 Mi. Premature water pump failure premature timing belt failure as I was pulling into a shopping center parking spot on 4/25/05, the car began to feel different and the power steering was not working. I shut car off immediately and it was steaming. I turned key on again without starting engine in order to check guages. There was no indication of overheating. Outside the car the coolant had leaked onto the ground. I had it towed by flatbed to winner audi in wilmington, de. They...

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diagnosed that water pump failed and resulted in timing belt failure, also. Quoted $2380.00 To repair the timing belt and water pump. Once this is completed, further diagnostics are required to determine if more damage exists. Service advisor, michelle suggested I call audi for assistance. She said that sometimes they will agree to have the repair done for the customer at the warranty rate, which is half the regular rate. I contacted audi america customer relations @ 800-822-2834 for assistance. Willie moore took my information and indicated that even though the vehicle was out of warranty, he would review the problem with the dealer for possible assistance with my repair. After putting me off twice, saying that "the department was closed for a few days" each time, he finally called me with an answer after 8 days. The answer was that since the vehicle was out of warranty, audi would not assist me in any way. I could not help but wonder, why put me through 8 days of waiting and false hope if the answer was as simple as that! All of us knew from the start that the car was out of warranty!

Filed Incident Engine and engine coolingNHTSA 10119758
SteeringEngine & cooling

While driving the vehicle will shut down, and the steering will lock up. This happened four times.*Ak

Filed Incident Steering · Engine and engine coolingNHTSA 10109362
Engine & coolingAcceleration & cruise control

Out of control experience due to unwanted acceleration of vehicle. The vehicle accelerated when the gas pedal was released, the engine revved past the redline, and the vehicle did not slow down when the brakes were engaged and we almost did not make the turn into our neighborhood. Even when we put the vehicle in neutral,the engine did not stop revving. We checked to make sure the cruise control was not on and tried the engine again, only to have the engine rev through the redline when only the brake pedal (and...

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not the gas) was engaged. We turned the car off and pushed it to a safe location where we left it, and called the police (who would not make an incident report) and left a message at the dealership. *Ph

Filed Incident Engine and engine cooling · Vehicle speed controlNHTSA 10038750
Engine & cooling

Vehicle will slow down without and shut down without prior warning. Dealership is aware of problem.*Ak

Filed Incident Engine and engine coolingNHTSA 8013699
Engine & cooling

When making right or left turns vehicle will shutoff or will start to loose power. Contacted dealer, and the dealer was not willing to do anything.*Ak

Filed Incident Engine and engine coolingNHTSA 8011867

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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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