Six problems related to brake abs warning light have been reported for the 1999 Audi A4. The most recently reported issues are listed below.
Abs control module light flashing and beeping ona 1 999 Audi A4. Although I thought it was only a warning, on down hill driving the brakes are effected and seem to lock up and make a noise. The feel of the pedal is also effected.
Audi A4 abs controller.
I own a 1999 Audi A4 with approximately 74,000 miles. Recently upon start-up the abs indicator light comes on and the brake indicator light flashes. I have taken the car in for service and have been informed that I no longer have anti-lock brakes and that to remedy the situation will cost in excess of $1500. This is completely unacceptable and appears to be due to a Audi manufacturing defect (anecdotally, I have heard of hundreds of similar issues with the abs). While the car is operable using standard brakes I believe it is a significant danger should the abs be required. Please look into this issue.
Abs unit failure, not replaced yet due to high cost of repair.
The consumer stated that the 1998 Audi a 4 was having a problem with the abs control unit. The diagnosis was that there was a communication error between the abs unit and the instrument cluster. The consumer has not had the problem corrected. The parts needed to fix the problem was on back order. The consumer has not ordered any parts to fix the vehicle at this time. The vehicle had a warning light on the instrument panel. It was the warning light and the abs light. The consumer took the vehicle to a repair shop to have it checked. The manufacturer has been contacted and the consumer filed a complaint with Volkswagen.
The abs system in my vehicle failed out of the blue without any trigger for it. The abs warning light is blinking in the instrument panel. As a result, the abs system is not functioning. I contacted the dealer and the quote to fix the part was about $1500.