Brake Booster, TT RS

1 - Brake Booster

2 - Brake Light Switch

• to brake booster

  -- On the TT RS remove the brake lamp switch. Refer to BRAKE LAMP SWITCH, TT RS .

6 -Bolt

• 25 Nm

8 - Brake Pedal

Removing 

Special tools and workshop equipment required 

• Torque wrench V.A.G 1331
• Brake filler/bleeder unit V.A.G 1869
• Brake filler/bleeder unit suction adapter V.A.G 1869/4
• Brake filler/bleeder unit VAS 5234
• Sealing plugs repair kit, Part no. 1H0 698 311 A

-- Remove the vacuum in the brake booster by pressing the brake pedal repeatedly.

-- On the TT RS remove the brake lamp switch. Refer to BRAKE LAMP SWITCH, TT RS .

-- On the TT RS remove the master brake cylinder. Refer to BRAKE MASTER CYLINDER, TT RS .

-- Remove the engine cover -1-.

-- Remove bolts -arrows- and remove the air guide.

-- Remove the bolts -arrows- and remove the air filter housing.

-- Unclip and remove the vacuum line from the brake booster.

-- Remove the vacuum line to the check valve.

-- Remove driver side compartment: Interior Equipment

-- Disconnect brake pedal from brake booster BRAKE PEDAL AND BRAKE BOOSTER, SEPARATING .

-- Remove the nuts -6-.

-- Remove the brake booster from the vehicle.

Installing 

Installation is the reverse of removal, with special attention to the following:

Use New Nuts.

-- Observe torque Figure

-- Clip brake pedal together with brake booster BRAKE PEDAL AND BRAKE BOOSTER, SEPARATING .

-- Install brake master cylinder. BRAKE MASTER CYLINDER .

-- On the TT RS install the brake lamp switch. Refer to BRAKE LAMP SWITCH, TT RS .

-- Install the vacuum line.

-- Connect the vacuum line to the check valve.

-- Install driver side compartment: Interior Equipment

-- Install the air filter housing and tighten the bolts -arrows-.

-- Install the air guide and tighten the bolts -arrows-.

-- Install the engine cover.

-- Brake System: ABS/ESP Mark 60, bleeding BRAKE SYSTEM BLEEDING .

-- Initiate brake pressure sensor basic setting.

Use Vehicle Diagnosis, Testing and Information System VAS 505x for this.

-- Perform ESP driving and system test.

Vehicle diagnostic, test and information System VAS 505x.

-- Under chassis

-- Brake system (Repair Group 01; 45)

-- 01 - On Board Diagnostic (OBD) capable systems

-- 03- Brake electronics ABS/ESP Mark 60si

-- J104- ABS/ASR/ESP Control Module, Functions

-- On vehicles with ABS/ESP, initiate brake pressure sensor basic setting.

-- Perform ESP driving and system test.