Four problems related to electrical system have been reported for the 1999 Audi A4. The most recently reported issues are listed below.
The car is experiencing unintended acceleration, usually, but not always, after heavy acceleration. Over 10 occurrences. Cannot remedy by pulling back the accelerator. Car must be turned off and the engine must record 0 rpm to remedy the problem.
Bosch abs control unit has failed causing a flashing abs indicator and a solid brake light. Cause is electronic. Many documented cases found on line. Abs will not engage. Audi will not recall, but vw has recalled for the same problem.
The contact owns a 1999 Audi A4. While driving at 30 mph, the vehicle began independently shifting into manual mode from automatic. The contact was able to adjust the shifter to normal but the failure persisted. The dealer advised the shifter blind and the printed circuit board would need to be replaced. The vehicle was not repaired. The failure mileage and current mileages were 126,963.
My brake light started beeping and flashing one day while driving. The beeping and flashing continued through the next couple of weeks. I took my car to my mechanic and he said I would have to take it to the dealer because Audi won't release their service codes. I called the dealer and asked what was going on. The mechanic asked me "were you driving your car in the rain?" I had quite a few sarcastic responses to the stupid question but I just said, yeah. I assume a car is engineered to be driven in all climates including, rain. A product should be designed to perform its intended use. Not the A4. Who needs an all wheel drive car if they don't plan on driving it through rain and snow? the mechanic told me that my abs control module needs to be replaced and it would cost me $1500. He told me that my abs and all wheel drive would not work properly until I fix it. I live in colorado and I frequently drive through the snow. I drive through the rocky mountains in icy and dangerous conditions. Luckily, it was summer time when my module went out. I take my little sisters, little brothers, and nephews snowboarding. I could have been seriously injured or killed or I could have seriously injured or killed someone else because I was driving a vehicle that I thought had abs, but didn't. There is a slim margin for error when you are driving on snowy curves through the mountains. I could be at the bottom of the cliff by the time I realize my abs wasn't working. Or I could slide over a group of pedestrians. Even if Audi doesn't want to pay for the repairs, they should at least notify their owners that this is a very common problem that drivers should be aware of. I went online and I was not surprised to see that thousands of other people had the same problem. Audi did absolutely nothing except offer to repair the broken module for full price.
| Electrical System problems | |
| Wiring problems | |
| Ignition problems | |
| Fuses And Circuit Breaker problems | |
| Instrument Panel problems |