Brake Booster, Removing And Installing: Notes
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Release Tool for Brake Light Switch T40168A
- Brake Servo Release Tool T40136
- Brake Charger/Bleeder Unit VAS5234 or
- Brake Charger/Bleeder Unit VAG1869A
- Sealing plug repair set, part no. 1H0 698, 311A
Function Test
- With engine switched off, depress brake pedal firmly several times (to exhaust the vacuum in the unit).
- Depress and hold brake pedal with average foot pressure and start engine. If brake booster is working properly, pedal will be felt to give noticeably under foot (booster assistance becomes effective).