Polo Mk4
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1 - | Servo brake |
q | On gasoline engines, the vacuum required is removed from the intake manifold. |
q | On diesel engines, a vacuum pump is installed to create vacuum. |
q | Check the operation |
q | Press the brake pedal several times with the engine stopped (this eliminates any remaining vacuum inside the device). |
q | Now, hold the brake pedal in the braking position using average foot pressure and start the engine. When the servo brake is working properly, this can be felt with a foot on the brake pedal (the amplification is active). |
q | in case of faults, replace completely |
q | Check valve (in the vacuum hose). Check the operation → Chapter |
q | separate from the brake pedal → Chapter |
q | remove and install → Chapter |
2 - | Brake oil level warning contact -F34- |
3 - | Plug |
4 - | Brake fluid reservoir |
5 - | Sealing plug |
q | moisten with brake fluid and introduce into the brake cylinder |
6 - | Self-locking hex head nut |
q | replace |
q | 20 Nm |
7 - | Brake cylinder |
q | cannot be repaired. In case of faults, replace completely |
8 - | Retaining pin |
q | insert through the brake cylinder |
9 - | Seal |
q | replace |
10 - | Plug |
11 - | Vacuum hose |
q | install in the servo brake |
12 - | Bellows |
q | ensure proper seating, aspiration noises may occur |
13 - | Self-locking hex head nut |
q | replace |
q | 28 Nm |
14 - | Sealing |
q | to servo brake |