Audi A6 brake failure problems

Filed Apr 22, 2026 · Brakes, Electrical · TX

Complete shut down of all electrical associated components while driving on highway Loss of power steering loss of braking loss of ability to accelerate transmission failure loss of lane detection, loss of car detection. Diagnosed as , faulty alternator recall repaired and continuation of same electrical failures despite six additional repairs Multiple failures of all electrical components on highway road and side roads

Filed Jan 27, 2023 · Driver assistance, Electrical · GA

My wife was travelling on the interstate at about 75 mph, when all of the dash lights flashed in red that there was an electrical system failure. At this time, while driving in the fast lane, it seemed like all systems including steering and power brakes failed. She managed to make it across four lanes of traffic before the car died completely. Once we got the car towed to the dealership, they informed us that it was a failure with the 48V generator and that it would be at least 2 months to fix the problem because the part was on back order. It has now been 2 and a half months, so I called the dealership and they told me they have 31 of these to change and my car is still a few weeks away from be repaired.

Filed Jun 11, 2012 · Brakes · 5,800 miles · NC

Brakes barely stop care , especially at low speed. Power brake failure.

Filed Mar 16, 2012 · Suspension · 150,000 miles · WV

Tl* the contact owns a 1998 audi a6. While traveling 25 MPH, the contact noticed that the front end of the vehicle had suddenly dropped to the ground. The vehicle was taken to the dealer, where the front lower control arm was replaced twice. The failure continued. The failure and current mileages were 150,000. Updated 5/7/12 *cn the consumer stated one month prior, while turning off a road, the vehicle dropped to 25 MPH, there was loss of brakes and the vehicle was hard to control. Updated 05/30/10

Filed Jul 12, 2011 · Electrical · TN

Brake light switch failure. Had it fixed, but the problems seems to be not in the brake light switch itself, but the wiring or sockets to the switch. Used same switch, but soon as car is turned off and turned back on, switch tends to work only for a couple of days and ABS system shows up again with no brakes lights at all. Took to audi dealer in which they said that there has been many problems within this system. But to totally fix the problem would run anywhere from 700.00 to 1200 dollars on a 35.00 to 45.00 part. No brakes could lead to serious accidents not knowing that your brakes lights are actually out. Please please recall this issue on all audi's.

Filed Dec 2, 2009 · Brakes, Driver assistance · 52,365 miles · CO

My ABS light, parking brake failure, and esp lights all came on at the same time while driving my 2005 audi a6 4.2 s-line model through a sudden snow storm in colorado. My ABS immediately failed and my brakes locked, causing me to lose control of my vehicle, and fortunately I avoided a crash (I was at low speeds). The quattro all wheel drive was also disabled at this time and I was unable to gain traction on the icy road. This could have been a devastating crash resulting in injuries if I had been going the speed limit that night. I immediately took my car in for service on 12/2/09 and was told I needed to have the ABS module replaced at a cost of around $1600. Why was this not a recalled part? According to the service tech at stammler audi in boulder, co it is a very common problem with the 2005 model year because it is the first year to have some new technology involved in the vehicle's driving systems. I am extremely upset that there is nothing I can do but pay out of pocket for a defective part, that audi also agrees with, just to drive safely on the roadways.

Filed Jun 19, 2007 · Electrical · 114,000 miles · MN

The lcd in the instrument cluster which displays any warning lamps was failing. This was a very common problem. Without use of this display I will not know if I have a check engine light, brake failure light or so forth. I know over 100 people with this same problem ,and I am not making this up.

Filed Feb 12, 2007 · Acceleration · PA · crash · 1 injury

Tl*- the contact stated that the 1999 audi a6 quattro had problems with acceleration. The vehicle accelerated on 02/05/07. The contact's wife was driving at 65 MPH when the vehicle accelerated on its own. The contact stated the only way the vehicle stopped was to push the brake pedal with both feet. The contact called the dealership and had an appointment set up for today 02/12/07. It happened again on 02/09/07. While driving the vehicle, and she was at a complete stop made a right turn and slowly accelerated to 45 MPH. The road surface was completely dry, the vehicle accelerated unexpectedly. The gas pedal went to the floor by itself without her pushing it to the floor. The driver applied the brakes with the right foot and the vehicle didn't stop. Then tried to pull the accelerator pedal up with the oe to stop the acceleration. She tried to pull the vehicle over to the side of the road, but the vehicle didn't decrease in speed. While trying to get the vehicle to come to a stop she then hit a tree. She hit the tree off the center of the front of the vehicle, and airbag didn't deploy, but the seat belt did restrain her. The contacts wife sustained neck and sternum injuries. And was taken to the hospital by an ambulance. There was a police report. The current mileage was 14000.

Filed May 18, 2005 · Brakes · 28,478 miles · OK

I am the owner of a 2002 audi a6 4.2. This is the second exact make and model that I have owned. My complaint is two fold. First and foremost, this particular audi has no rear brake pad wear sensor. Both vehicles I owned had rear brake failure. The second vechicle I had the idea to continously check the rear brakes. I feel that the ntsha should look in to audi and the lack of a brake failure waring system. Secondly, the first failure I have was completely covered by warranty. The current car was not covered. Audi has unilaterally chaged ther warranty policy. The have decided no long to warranty wearable parts. For the record the warrant stated that wearable brake parts are covered.

Filed May 22, 2001 · Brakes · CA · crash

Brakes failed due to brake pedal mounting bracket. Driver was unable to stop vehicle, resulting in a collision and fatality.