VW Golf manuals

Volkswagen Golf Service & Repair Manual: 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

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 ...

Pre-bleeding brake system pressure accumulator -VX70-
Special tools and workshop equipment required     Sealing plug repair kit -1H0 698 311 A- & ...

Other materials:

Childproof lock
Fig. 34 In the left rear door: childproof lock Ⓐ switched off, Ⓑ switched on Fig. 35 In the right rear door: childproof lock Ⓐ switched off, Ⓑ switched on First read and observe the introductory information and safety warnings The childproof lock prevents the rear doors from bein ...

Checking ABS sensor ring
Special tools and workshop equipment required     Sensor gauge -T10473- Procedure Wheel bearing unit is removed.   ...

Connecting vacuum gauge for brake servo -VAS 6721-
Special tools and workshop equipment required     Vacuum gauge for brake servo -VAS 6721- –  Pull vacuum hose out of brake servo. First press the br ...

© 2016-2024 Copyright www.vwgolf.org