Two problems related to speed control cable have been reported for the 1999 Audi A4. The most recently reported issues are listed below.
January 17, 2007, 8 degrees - dry road conditions I accelerated up a steep hill on my way to work when at the top of the hill I took my foot off the accelerator and the vehicle's rpms raced to 7,000. I popped the car into neutral and punched the gas pedal and the car reduced speed and rpms this is very dangerous. This is my second complaint - it happened last winter with wet road conditions but very very cold. I took the car to the dealer last year and they claim there is nothing wrong. I had the accelerator cable replaced. There is a recall on the Audi a-6 and the dealer claims my car does not qualify. On certain passenger vehicles equipped with 2. 8l, v6 5-valve engines, and automatic transmissions, while driving during extremely low ambient temperatures the throttle may freeze in an open position due to ice accumulating in the throttle body. If this occurs, the vehicle may fail to reduce speed when the driver lifts his/her foot from the gas pedal. This loss of vehicle control could result in a crash without warning. Something must be done to make Audi realize this is very dangerous and applies to the a-4 not just the a-6.
When accelerator rod breaks,, rather than slowing down--it throws the car into full throttle.