Volkswagen Golf Service & Repair Manual: Subsequent bleeding of hydraulic system

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

Note

Carry out subsequent bleeding when:

brake pedal travel is too long or so-called »soft brake pedal«

Subsequent bleeding requires the assistance of a second mechanic.

–	Connect brake filling and bleeding equipment -VAS 5234-.

–	Depress brake pedal firmly and hold.

–	Open bleeder valve on brake caliper.

–	Fully depress brake pedal.

–	Close bleed valve with pedal held down.

–	Release brake pedal slowly.

Note

This bleed sequence must be carried out 5 times per brake caliper.

1 -	Front left brake caliper

2 -	Front right brake caliper

3 -	Rear left wheel brake cylinder

4 -	Rear right wheel brake cylinder

5 -	Brake system pressure accumulator -VX70-, LHD vehicles

Use suitable bleeder hose. It must sit tightly on bleeder valve so that no air can enter brake system:

–	Leave bleeder valve of each brake caliper open with bleeder hose fitted until brake fluid discharges free of air bubbles.

Note

A road test must be carried out after the brakes have been bled. When doing this an ABS regulation must be performed at least once!

Subsequent bleeding of hydraulic system

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