Master Brake Cylinder: Removing
Special tools and workshop equipment required
- Torque Wrench 5-50Nm VAG 1331
- Adapter VAS 5234/1
- Brake Charger/Bleeder Unit VAS 5234
- Sealing plugs repair kit, Part no. 1H0 698 311 A
Removing
-- Remove the plenum chamber cover, refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .
-- Remove the engine cover.
-- Remove the tower brace, refer to TOWER BRACE, REMOVING AND INSTALLING .
-- Remove the plenum chamber bulkhead, refer to OVERVIEW - BULKHEAD .
-- To protect against escaping brake fluid, place enough lint-free cloths in the area below the master brake cylinder.
-- Extract as much brake fluid as possible from the brake fluid reservoir with the VAS 5234.
- Brake fluid must never come into contact with fluids containing mineral oils (oil, gas, cleaning solutions). Mineral oil damages the sealing plugs and boots of the brake system.
- Brake fluid is poisonous. NEVER siphon brake fluid with your mouth! Also due to its corrosive effect, brake fluid must not come into contact with paintwork.
- Observe disposal regulations.
-- Remove the brake fluid reservoir, refer to BRAKE FLUID RESERVOIR .
-- Disconnect brake lines -2- at brake master cylinder and seal brake lines with sealing plugs from repair kit.
-- Remove brake master cylinder nuts -3-.
-- Remove brake master cylinder from brake booster.
-- Remove the brake master cylinder from the vehicle.
Do not let any brake fluid run into the brake booster.