volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking wheel brake cylinder for leaks > < Subsequent bleeding of hydraulic system
Testing for leaks
Testing for leaks
Special tools and workshop equipment required
t  Tester for brake pressure regulator -V.A.G 1310 A-
   
t  Adapter M10 -V.A.G 1310/6-
Test prerequisites:
Brake system (ABS hydraulic unit -N55-, brake hoses, brake lines and brake calipers) is working properly and is not leaking.
Carry out the following work:
–  Remove bleeder valve at one of front brake calipers. Connect tester for brake pressure regulator -V.A.G 1310A- and bleed.
–  Apply pressure to brake pedal until gauge indicates a pressure of 50 bar. The pressure must not drop by more than 4 bar within the test period of 45 seconds. Renew brake master cylinder if drop in pressure exceeds specification.
  W00-0562

Checking wheel brake cylinder for leaks > < Subsequent bleeding of hydraulic system