Originally Posted by KevinGary
Take a look at post number 3.
Guys - bad news on the park brake problem. I have had this car back to Audi 3 times to finally get it resolved.
First time they replaced the park brake control module and told me the problem was fixed.
Within 24 hours the park brake had again locked the car up and immobilised it. The car could not be moved at all as the right rear park brake motor had failed while engaged. An Audi mechanic told me over the phone that I needed to unplug the cable connecting the motor to the electrical system, undo the two screws that held the motor in place and then turn the torque screw until the brake was no longer engaged and the car could be driven.
This sounded simple over the phone but harder in practice and I was not able to complete the work. Despite this, the work must have disengaged the brake because the car could at least be driven.
After Audi replaced the right rear park brake motor and told me it was fixed, the problem came back after 24 hours and the car was again immobilised. Turning the ignition on and off again resolved the problem temporarily and enabled me to drive the car back to Audi the next day.
On the third attempt to fix the problem, the Audi technician reported that the contacts on the plug connected to the park motor were dirty and wwere causing the problem. That was yesterday. I'll wait to see if it really is fixed.
The upshot is that I don't think that the TSB is going to help you!