Leon Mk1
Assembly diagram: Brake servo / Master brake cylinder: |
Note!
The master brake cylinder and the servo brake can be replaced independently. |
1 - | Brake servo |
q | In petrol engines, the necessary vacuum is taken from the intake manifold |
q | In diesel engines the necessary depression is generated by a vacuum pump |
q | Vacuum pump: removing and installing → Chapter |
q | Checking functioning: |
q | With engine off, strongly depress the brake pedal several times (this reduces the existing vacuum in the aparatus) |
q | Next, keep the brake pedal depressed halfway and start engine. If the servo brake is working correctly the brake pedal will give way noteably (the servo brake effect is beginning) |
q | If faulty, completely replace |
q | Brake pedal: separate from brake servo → Chapter |
q | Brake servo: removing and installing → Chapter |
2 - | Brake fluid level switch |
3 - | Cap |
4 - | Brake fluid deposit |
5 - | Union plugs |
q | Moisten with brake fluid and insert into the brake fluid deposit |
6 - | Securing pin |
q | Insert through the master cylinder |
7 - | Hexagon nut |
q | 20 Nm, self-locking |
q | Replace after removing |
8 - | Brake master cylinder |
q | Repairing is not permitted. If faulty, completely replace |
q | Removing and installing → Chapter |
9 - | Vacuum hose |
q | Insert into brake servo |
q | Check non return valve in the vacuum pipe → Fig. |
10 - | Union plugs |
q | Renew if damaged |
11 - | Oil seal |
q | Renew |
12 - | Gasket |
q | For brake servo |
13 - | Hexagon nut |
q | 20 Nm, self-locking |
q | Replace after removing |
q | 4 units, to secure support block to servo brake |
14 - | Bellows |
q | Make sure it is correctly fitted otherwise there may be admission noises |