Table 1 shows one common air brake related problems of the 2001 Audi A4.
| Problem Category | Number of Problems |
|---|---|
| Air Brake Antilock Control Unit/module problems |
Failure of abs controller in 2001 Audi A4 1. 8t. Was told by dealer that engine heat melts soldering in unit. $1,300 estimated repair ($1,000 for part alone). Intermittent failure light and beep when driving, abs not active when light is blinking. I've read on Audi websites that this is a common failure that Audi of America refuses to take steps to rectify either monetarily or through redesign of the controller to prevent future failures.