Hydraulic System, Standard Bleeding
Special tools and workshop equipment required
- Brake Charger/Bleeder Unit VAS5234
- Brake Bleeding Tool Set VAS6564
- Brake Charge and Bleed Equipment - Upgrade Kit VAG1869/4
Bleeding
Adhere strictly to work sequence when bleeding brake system.
The bleeding of brake system using the Brake Charger/Bleeder Unit VAS5234 is described.
There must be a positive pressure of 2 bar to bleed the hydraulic unit.
Only use new brake fluid conforming to VW standard (VW 501 14). Refer to Maintenance, Diagnosis
Open bleeder valves in the prescribed sequence and bleed brake caliper:
- Left Front Brake Caliper
- Right Front Brake Caliper
- Left Rear Brake Cylinder/Brake Caliper
- Right Rear Brake Cylinder/Brake Caliper
See notes. Refer to BRAKE FLUID GENERAL INFORMATION .
-- Fill the brake fluid reservoir up to the max mark.
-- Connect the Brake Charger/Bleeder Unit VAS5234 with the Brake Charger/Bleeder Unit Adapter VAS5234/1A.
-- Attach the adapter -1- to the brake fluid reservoir.
-- Set the correct pressure on the Brake Charger/Bleeder Unit VAS5234.
-- Refer to the operating instructions for the Brake Charger/Bleeder Unit VAS5234.
-- Remove the left and right front caps -1-.
-- Remove the left and right rear caps -1-.
Use suitable bleeder hose. It must fit tightly on bleeder valve so that no air gets into brake system.
-- With the bleeder bottle hose attached, leave bleeder valve of a brake caliper/brake cylinder open long enough so that the brake fluid exits without bubbles.