This page introduces a diagnostic sequence for tracking down the cause of brake servo complaints or a so-called "hard brake pedal" on the Volkswagen Golf Mk7.
| The following instructions are intended to help you find the
causes of problems effectively and objectively in the event of
complaints about the brake servo or in the event of a so-called
»hard brake pedal«. |
| This check relates to the following components: |
| Oil seal between brake master cylinder and brake servo. |
| Vacuum hoses with connectors |
| When evaluating the measuring results, bear in mind that
they will be influenced by the geographical location. The higher
your location is above sea level, the lower the air pressure
will be. |
| Before checking the vacuum system, please take note of the
following prerequisites for checking: |
| Visual inspection of all vacuum hoses for damage (e.g.
cracks or marten bite) and to check that they are correctly and
firmly attached |
| Ensure cleanliness when working on vacuum system |
| Before starting work, clean engine compartment if necessary |
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Questions & answers
Instructions for checking — Volkswagen Golf Mk7
What vacuum checking instructions does the Golf Mk7 manual provide?
Connect vacuum gauge -VAS 6721- to the servo vacuum line. Check vacuum generation with the engine running, and leak-test with the engine off.
Note
The vacuum sender -G608- is only installed in selected
petrol engines.
Removing
...
Special tools and workshop equipment
required
Vacuum gauge for brake servo -VAS 6721-
...
