2005 Audi A6 electrical problems

Filed Oct 4, 2016 · Electrical, Lights · 120,000 miles · MA

The left drivers side break light/signal will stop working intermittently. I have noticed that it tends weather dependent. I have read audi forums whom have said that the electrical wiring when exposed to heat (70 degrees fahrenheit and above) will short causing the LED break/signal light to not work. My mechanic stated that it is also because of a faulty "light control module + wiring." due to the intermittency and high cost of the job it has not been something that I have been able to fix. I am afraid that eventually none of the tail lights will work or even after repairing it, the same issue will arise. I first noticed this in may of 2015, however it was fine through the fall and winter. I again noticed it randomly through the summer months (june-aug).

Filed Jun 3, 2016 · Airbags, Electrical · CT

I reached out to audi when I received an email stating recalls for my car. I spoke to 2 audi reps at there call center whom both stated to me that I was wrong about the email I received and to check this site. Once I have it showed and stated the same recall that I received an email about. But once I stated that the dealer may not be aware of the scheduling of this but both reps state that the site backed by auto trader and kbb was incorrect. It bothers me to see that this company is not aware of there own defects which makes me wonder what else is extremely wrong with the car--------- also after seeing the recall my passenger light for the airbags started to flicker when no one was in the car, which lead to some other electrical problem with my car. My whole mmi interface malfunctioned to where its only a black screen

Filed Nov 24, 2015 · Electrical · 147,000 miles · MI

Start access control unit (j518) malfunction. Car will not start. Audi dealer claims that whole steering column must be replaced. Quote $2,400.

Filed Oct 15, 2015 · Electrical, Engine · 192,000 miles · VA

Very common problem - "ignition module defective" code at 190,000 miles. Temporary repair of the issue with dtc reset. Full logging of car data via obd-ii port reveals zero faults while car is running, and diagnostic traffic on the can bus at startup show zero faults. Once key is inserted in dash and turned to "accessory", module faults out without any traffic sent/received. Happens intermittently and dealership states this is a known problem. Dealership-only repair, per multiple audi service technicians, audi of america refuses to comply with massachusetts right to repair law by making available to independent repair shops, the necessary tools and equipment to access the immobilizer hardware. Dealer estimates/quotes range from $2100-$3700 to replace entire steering column with the attached and separable ignition module (accessible via 2 screws and 1 rivet). Dealerships refuse to replace/re-code only the ignition module, stating the entire steering column needs replaced. Multiple reports of the same issue with other c6 body audi a6 owners confirm the same details. Nothing is physically wrong with the ignition switch or module, and clearing diagnostic trouble codes allow the vehicle to start immediately. Suspect planned obsolescence of the part in question.

Filed Sep 25, 2015 · Electrical · 135,000 miles · MI

My car was running perfectly, next time I went to drive it, it wouldn't start. The wheels and shifter are locked up .the lights and bells work, but it turns out that the module that recognizes the key has failed. I have been on just about every audi forum to investigate this, and this is an incredibly common complaint. The part that is broke cannot be fixed, rather the entire steering column has to be replaced at a cost of at least $2000, in some cases over $3000. This is an obvious design defect and audi needs to be held responsible. Paying thousands of dollars for a module that fails to recognize a key is beyond ridiculous. There were no warning lights whatsoever to indicate that this part was failing. Luckily it is currently stuck in my driveway. It could have left me stranded anywhere.

Filed Jun 23, 2015 · Electrical, Lights · TX

My sunroof will not retract..

Filed May 7, 2015 · Electrical, Steering · 126,948 miles · VA

Having all the same issues with the steering column listed below, why has this issue not been made a recall issue???? There is an entire page of this problem at the following audi forums.com link http://www.audiforums.com/forum/audi-a6-9/2005-audi-a6-wont-start-but-mmi-lights-seat-memory-etc-works-finefacebook-twitter-163846/ note: the issues listed in service bulletin no: tsb-48-14-62 the federal safety agency id number: 10056441 complaint filed 10/29/2014 the federal safety agency id number: 10651089 and complaint filed 04/27/2012 the federal safety agency id number: 10456711. Why hasn't this problem with the steering column become a recall item? When is this problem with the steering column going to become a recall item?

Filed Oct 29, 2014 · Electrical · 132,000 miles · NC

We have a 2005 audi a6 purchased cpo in 06. We recently had issues with brake module issues that are still there but waiting on the recall for this issue. Now we have an issue with our mmi system which is the entertainment part of the car. It controls the music, navigation, and some convenience features. I have seen a lot of audi owners with this mmi problem as well. There seems to be a trend with audi vehicles now. I would think when you make a luxury purchase such as this you would not have these kinds of issues. Certainly if you are not abusing the car in any way. This also needs to be a part of a recall. The first indication was I could not reset the battery after the replacement which was not done by audi. Then I took it to them to reset the battery level and recode the mmi and audi could not do it? There is an issue here....

Filed Oct 29, 2014 · Brakes, Driver assistance · 93,450 miles · NC

On our 2005 audi a6 we purchased certified pre-owned (cpo) we are the second owners of the vehicle. When we purchased this a6 it had only 30,330 miles. When we got to around 90k+ miles is when we started to have some issues with the cars braking system. We took it to audi which is the only place we have had it serviced and where we purchased the vehicle. They said there was a problem with the brake module causing the blinking brake light and the ABS light to come on along with a loud beeping from time to time. They thought it could also be low on brake fluid and capped it off. The problem went away for a while but then came back along with the check engine light. This time it was said we have a fault ecu module. We had this service done which costs $2,200.usd but this was just to repair the check engine light but not the brake module. We asked if this repair would resolve both issues and the answer was yes. There are thousands of complaints about the bosch brake module which seems to be an ongoing problem with audi. This needs to be recalled and everyone get their money refunded to them for the pain and anguish this has caused. There also needs to be a class action lawsuit against audi!!

Filed Dec 9, 2013 · Brakes, Driver assistance · 55,000 miles · TX

Audi 2005 a6 started to have intermittent warning for ABS, stability, hand brake at ~55k miles. Took car to dealer to diagnose it . Dealer called with an estimate of $2800 to replace ABS module. He also provided an estimate of $1100 for another error code for airbag to replace the center rear seat belt. I'm not understanding why these warning codes come so randomly and clear so randomly. Not sure why an audi a6 will need such repairs that clearly point to flaws in design and unreliable parts after only 55k miles. There are tons for online complaints from audi drivers that use the bosch 8.0 ABS module. Audi should either recall this part or offer to pay for the repairs. When I complained to audi USA, basically they asked if I was first owner and if I take it to dealer for maintenance. The answers for both is no. I'm the 2nd driver. Bought the car with only 20k miles and since relocating to houston, I take the car to a local garage for oil change. I'm looking for safecar.gov to rectify the issue with audi. Audi doesn't even sell the ABS module part alone. You will have to buy the brake pump as well.