Volkswagen Golf Service & Repair Manual: Hydraulic system

Volkswagen Golf Service & Repair Manual / Brake system (hybrid) / Brakes, hydraulics, regulator, servo / Hydraulic system

General notes on brake fluid

Only use new brake fluid conforming to VW standard (VW 501 14).

Note

Brake fluid is poisonous. Also due to its corrosive effect brake fluid must not come into contact with paintwork.

Brake fluid is hygroscopic, which means it absorbs moisture from the ambient air and should therefore always be stored in air-tight containers.

Rinse off spilled brake fluid using plenty of water.

Changing brake fluid

Work instructions

Unbolt relevant brake line at brake caliper or wheel brake cylinder; catch escaping brake fluid and dispose of this as per regulations. &nb ...

Bleeding hydraulic system following standard procedure

Note Bleeding the hydraulic system using brake filling and bleeding equipment -VAS 5234- is described. A pre-pressure of 2 ...

Other materials:

Run-flat tyres, PAX, checking
When checking a tyre, look out especially for the following criteria: Surface erosion or ripples on the inner side (inflation pressure was too low or not sufficient for the load) ...

Flat spots (from locking wheels)
Flat spots can result from an extreme brake application which causes the wheels to lock, so that the rubber is worn off at the contact patch between the tread and the road surface. As the tyres slide over the road surface, friction generates ...

Flat spots caused by hard braking
This type of flat spots may be caused by hard braking on a rough surface such as a tarmac road. During this type of braking manoeuvre only a certain area of the tyre is abraded accordingly and therefore causes an imbala ...