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Acceleration & cruise control

Audi A8 Acceleration problems by year

20 complaints filed with NHTSA about the Audi A8's acceleration & cruise control. Unintended acceleration, surging, throttle problems and cruise or adaptive cruise faults.

Acceleration complaints by model year

YearAcceleration complaintsCrashesInjuriesRecalls
20152000
20131000
20121000
20082100
20063000
20053000
20022000
20014000
19972100

Latest A8 acceleration complaints

2013 Audi A8Transmission & drivetrainAcceleration & cruise controlEngine & cooling

I was driving on the highway, the vehicle epc light came on. Vehicle began to run rough, and shortly after died out completely. Luckily there was no one behind me when the car died, and that I was in the right lane and was able to limp onto the shoulder. Waited for tow truck. Had car towed to dealer where a faulty turbocharger was diagnosed as the reason for vehicle breaking down

Filed Incident Power train · Vehicle speed control · EngineNHTSA 11319907
2008 Audi A8Acceleration & cruise controlBrakes

Tl* the contact owns a 2008 audi a8. The contact stated that the vehicle hesitated to accelerate and the brake pedal failed to respond when depressed. The vehicle was taken to the dealer, but the failure could not be duplicated. The manufacturer was not notified. The vin and failure mileage were not available.

Filed Incident Vehicle speed control · Service brakesNHTSA 10905010
2012 Audi A8Acceleration & cruise control

After starting the car it will travel or idle for 3-6 minutes (2-3 miles) then start to sputter and stall. During this time the yellow epc light and engine light are on. After sitting for 3-8 minutes it most often starts but will not idle or travel unless the epc light goes out. This restart may not be successful the first or second time. Running other software, air conditioning, and cruise control has no influence. Preliminary computer check suggests 14 faults. Further examination will be done after may 30, 2016.

Filed Incident Vehicle speed controlNHTSA 10871300
2015 Audi A8Electrical systemAcceleration & cruise control

Tl* the contact owns a 2015 audi a8. The contact stated that while driving at approximately 60 mph, the vehicle speed decreased and suddenly failed to go over 40 mph. In addition, when depressing the accelerator pedal, the vehicle stalled. The failure occurred intermittently. The vehicle was taken to the dealer but the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 10,427.

Filed Incident Electrical system · Vehicle speed controlNHTSA 10839712
2015 Audi A8Acceleration & cruise controlBrakesFuel system

The brake and gas pedals are too close. I consistently hit the brake while accelerating. They need to be spaced farther apart, and the brake pedal moved to the left. There are comments all over the internet about this problem and audi service says there is no fix. I have large feet and have never had this problem with any other car manufacturer. I need the nhtsa to get involved before someone gets hurt. This is a very big defect that needs to be fixed.

Filed Incident Vehicle speed control · Service brakes · Fuel / propulsion systemNHTSA 10750197
2005 Audi A8BrakesAcceleration & cruise controlEquipment & accessories

Adaptive module j428 failed and brakes seized while vehicle was in motion.. Audi customer service said that since they could not find a recall and the vehicle was nine years old they thought it was not their problem. I think the problem could have e resulted in a serious accident at high speeds and could have killed me. I paid for the repair but told them they should check into the problem because of the safety issue but did not receive a positive response. I feel the problem should be researched and I would like feed back on any information that would result from the research. *Tr

Filed Incident Service brakes, hydraulic · Vehicle speed control · Equipment adaptive / mobilityNHTSA 10606131
2006 Audi A8Fuel systemAcceleration & cruise control

While accelerating to get on the parkway my car locked at 7000 rpm's and continued to accelerate with my foot off the accelerator. I was forced to put the car in neutral to avoid an accident, if I were not an experienced driver this could have caused a fatality in the car was at 80 mph and quickly rising. The tachometer continued at 7000 rpm for roughly 20 seconds, only after continually tapping the accelerator it finally began to decline. Please look into this life threatening situation. Additionally my tire pressure light remains on even when all tires are at the factory recommended settings. *Tr

Filed Incident Fuel system, gasoline · Vehicle speed controlNHTSA 10573657
2008 Audi A8Acceleration & cruise controlCrash

Tl. Hi, this morning I was involved in an accident when my 2008 audi a8l suddenly accelerated out of control as I was entering a parking garage. Thankfully it appears no one was injured. I am extremely disturbed by this incident. I have also contacted audi usa. Is thus a known problem with this car? Please let me know what I should do. I don't want this to happen to anyone else and I do not know if I should escalate this issue somewhere else. I am also concerned about driving it again after it is repaired. I always...

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liked the car and if I don't drive it again I could not in good conscious sell it to someone else. Please let me know anything that could help me with this situation. Thanks bob (contact wanted this complainted copy and pasted into the complaint form)

Filed Incident Vehicle speed controlNHTSA 10358339
2006 Audi A8Acceleration & cruise control

Car suddenly accelerated without warning and propelled us across am intersection into traffic. This is 2nd time this has happened, the first time it happened was on a freeway devoid of other traffic. I reported the first event to the local dealer that I purchased the vehicle from but never received any feedback. After researching the issue I was able to determine that the problem is caused by the drivers factory floor mat coming loose from its retaining clips, sliding forward and causing interference with the...

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accelerator pedal. It was only my familiarity with the problem and how to fix it that allowed me to react quickly enough to avoid an accident the second time. If the car had been driven by a less experienced driver or if this had been the first time that it happened to me this could have easily resulted in a fatality. *Tr

Filed Incident Vehicle speed controlNHTSA 10275799
2006 Audi A8Acceleration & cruise control

Tl*the contact owns a 2006 audi a8 l. While driving approximately 25 mph, the contact approached another vehicle and attempted to apply the brakes, but the vehicle would not stop. The harder he depressed the brake pedal, the faster the engine would race. He pulled to the side of the road and noticed that the floormat was resting on the gas and brake pedals. The contact called audi and filed a complaint. Approximately four months later, the failure recurred and the dealer was notified. He took the vehicle to...

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the dealer approximately six times for the issue with the floormat. The failure recurred on august 7, 2008 and almost caused the contact to crash into another vehicle. The dealer replaced the pegs in the floor and then they replaced the floormat; however, the failure persists. The failure mileage was 95 and current mileage was 39,683.

Filed Incident Vehicle speed controlNHTSA 10237329
2005 Audi A8Acceleration & cruise control

Tl*the contact owns a 2005 audi a8. While driving 70 mph with the cruise control activated the contact heard a bell sound and the cruise control failed. The vehicle decelerated, but did not shut off. The vehicle was taken to a dealer approximately ten times, but the cause of failure could not be determined. The dealer stated that the failure was a normal characteristic of the vehicle. The vehicle has not been repaired. The current mileage was 23,800, and failure mileage was 10,000. *Ak update 05/04/07*tr

Filed Incident Vehicle speed controlNHTSA 10188022
2005 Audi A8Body, doors & structureAcceleration & cruise controlWheels & tires

Dt*: the contact stated while the vehicle was traveling 40 mph the accelerator pedal was released. The vehicle accelerated on its own. The brake pedal was depressed and the vehicle stopped. The dealership was unable to determine a problem. A second time, while driving 70 mph, the accelerator pedal was released and the vehicle accelerated to 100 mph. The brake pedal was applied and the vehicle slowed to 70 mph then the vehicle sped up again. The contact used the parking brake to slow the vehicle to 45 mph,...

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and then applied both feet to the brake pedal to stop the vehicle. Once at a stop, the vehicle was put in neutral and the rpm's red lined. The vehicle was then put in park and the engine continued to rev. The dealership was called to tow the vehicle, but there would be an hour wait. The contact drove the vehicle to the dealership, but the dealership is unable to determine a problem. The manufacturer has sent a representative for further inspection. Updated 4/11/2006 - the tire pressure monitoring system was inoperative. The trunk failed intermittently. *Nm

Filed Incident Latches / locks / linkages · Vehicle speed control · TiresNHTSA 10153215
2001 Audi A8Transmission & drivetrainAcceleration & cruise control

The consumer experienced an inconsistency with acceleration when making right hand turns. *Jb the consumer stated that when he drives the vehicle it feels like he is starting off in third gear. *Tc

Filed Incident Power train · Vehicle speed controlNHTSA 10097168
2002 Audi A8Engine & 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

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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