Overview - Brake Booster/Brake Master Cylinder
WARNING: This page is about a different car, the 2014 Volkswagen Touareg, 2013 Volkswagen Touareg, 2012 Volkswagen Touareg, and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Use only new brake fluid. Observe information on brake fluid reservoir!
I - All vehicles
II - Brake System Vacuum Pump -V192- for Hybrid Vehicles. Refer to BRAKE SYSTEM VACUUM PUMP -V192- .
- Brake Pedal
- Removing and installing. Refer to BRAKE PEDAL, REMOVING AND INSTALLING .
- Brake pedal from brake booster, disconnecting. Refer to BRAKE PEDAL, REMOVING FROM BRAKE BOOSTER .
- Brake pedal together with brake booster, installing. Refer to BRAKE PEDAL, ATTACHING TO BRAKE BOOSTER .
- Allocation. Refer to the Parts Information.
- Mounting Bracket for Pedal Assembly
- Self-Locking Hex Nut
- 23 Nm
- Always replace if removed
- Seal
- For the brake booster
- Brake Booster
- On gasoline engines, vacuum is supplied from intake manifold.
- Hybrid vehicles with a gasoline engine are equipped with an electric brake system vacuum pump.
- Diesel engines have a vacuum pump to produce the vacuum.
- Functional check:
-- 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).
- Replace completely if there are malfunctions (check the vacuum system for the brake booster first. Refer to BRAKE BOOSTER VACUUM SYSTEM, CHECKING )
- Removing and installing. Refer to BRAKE BOOSTER, REMOVING AND INSTALLING .
- Seal
- TORX®
Bolt
- 5 Nm
- Clip
- Brake Lamp Switch -F-
- Removing and installing. Refer to BRAKE LAMP SWITCH -F-, REMOVING AND INSTALLING .
- Self-Locking Hex Nut
- 23 Nm
- Always replace if removed
- Brake Master Cylinder
- Cannot be serviced. Replace as complete unit if malfunctioning.
- Removing and installing. Refer to BRAKE MASTER CYLINDER, REMOVING AND INSTALLING .
- Brake Line
- 18 Nm
- Brake master cylinder/secondary piston circuit to hydraulic unit. Refer to Fig 2
- Brake Line
- 18 Nm
- Brake master cylinder/primary piston circuit to hydraulic unit. Refer to Fig 2
- Sealing Plug
- Moisten with brake fluid and press into brake fluid reservoir
- Brake Fluid Level Warning Switch -F34-
- Stud Bolt,
- 8 Nm
- Cap
- Brake Fluid Reservoir
- Pressure Sensor
- Brake Booster Pressure Sensor -G294-, hybrid
- Vacuum Sensor -G608-, V8 FSI
- Vacuum Hose
- Insert into brake booster
- Sealing Plug
- Connection for vacuum hose