Overview - Brake Booster/Brake Master Cylinder, Vacuum Brake Booster, RHD
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Audi SQ5, 2024 Audi Q5 e, 2024 Audi Q5, 2023 Audi SQ5, and 2023 Audi Q5 e. However, it is still accessible from the selected car via links, so may be relevant.
- Bolt
- 8 Nm
- Brake Lamp Switch -F-
- Refer to BRAKE LAMP SWITCH, REMOVING AND INSTALLING
- Must be flush with the outer edge of the mount
- Brake Master Cylinder
- There are different versions. Refer to the appropriate Electronic Parts Information for the allocation.
- Replace completely if faulty
- Refer to BRAKE MASTER CYLINDER, REMOVING AND INSTALLING
- Bolt
- 25 Nm
- Nut
- Replace after removing
- Tightening Specification
- 49 Nm for the brake booster / brake master cylinder, ZF-Girling
- 55 Nm for the brake booster / brake master cylinder, Bosch
- Seal
- Replace after removing
- Plugs
- To install, coat with brake fluid
- Spring Pin
- Brake Fluid Reservoir
- Cap
- With seal
- Brake Fluid Level Warning Switch -F34-
- Brake Booster
- There are different versions. Refer to the appropriate Electronic Parts Information for the allocation.
- Function Test:
-- With the engine switched off, press the brake pedal firmly several times (to reduce the vacuum in the device).
-- Hold the brake pedal with average foot pressure and start the engine. If the brake booster is working properly, the brake pedal will be felt to give noticeably under foot (booster becomes effective).
- Refer to BRAKE BOOSTER, REMOVING AND INSTALLING
- Refer to BRAKE PEDAL, DISCONNECTING FROM BRAKE BOOSTER
- Refer to Figure
- Seal
- Replace after removing
- Mount
- For the actuator rod
- Not available separately.
- Push Rod
- The pushrod is only loosely inserted into the brake master cylinder and can fall into the brake booster when removing
- Actuator Pin
- For the Brake Lamp Switch -F-
- The actuator pin only functions for the brake lamp, not for the brake system
- If the pin is missing or is damaged, the brake lamp will not function
- Must not fall in the brake booster when removing the brake master cylinder.
- It must always be pushed into the hole in the brake master cylinder directly on the Brake Lamp Switch -F-
- Do not bend it
- Cannot be replaced separately
- Brake Line
- Brake master cylinder/primary piston circuit to hydraulic unit
- Do not change the bending shape.
- Replace a damaged or bent brake line
- 16 Nm
- Brake Line
- Brake master cylinder/secondary piston circuit to hydraulic unit
- Do not change the bending shape.
- Replace a damaged or bent brake line
- 14 Nm