Leon Mk2
| Assembly overview: brake master cylinder/brake servo |
Note!| Complete master cylinders and brake servos can be replaced independently of each other. |
| 1 - | Self-locking hexagon nut, 25 Nm |
| 2 - | Brake servo |
| q | On petrol engines the vacuum required is taken from the intake manifold. |
| q | On Diesel engines an exhauster is installed to create the required vacuum. |
| q | Functional check |
| – | With engine switched off, depress brake pedal firmly several times (to exhaust the vacuum in the unit). |
| – | Now depress brake pedal with average foot pressure, hold and start engine. If the servo unit is working properly, the pedal will be felt to give slightly under foot (servo assistance becomes effective). |
| q | Separating from brake pedal → Chapter. |
| q | Non-return valve (in vacuum hose) → Anchor |
| Functional check → Anchor |
| 3 - | Sealing ring |
| q | Renew |
| 4 - | Self-locking hexagon nut, 20 Nm |
| 5 - | Brake master cylinder |
| q | Cannot be repaired. If faulty, renew complete. |
| 6 - | Heat shield |
| q | Only vehicles with certain engines. |
| 7 - | Self-locking hexagon nut, 20 Nm |
| 8 - | Sealing plug |
| q | Moisten with brake fluid and press into reservoir |
| 9 - | Brake fluid reservoir, LHD |
| 10 - | Seal |
| 11 - | Cap with switch for brake fluid level |
| 12 - | Vacuum hose |
| q | With non-return valve |
| Functional check → Anchor |
| 13 - | Brake fluid reservoir, RHD |
