Volkswagen Golf Service & Repair Manual: Separating control unit from hydraulic unit
Special tools and workshop equipment
required |
If a control unit is defective, separate it from the
hydraulic unit and renew only the control unit. |
If the hydraulic unit is defective, the hydraulic unit must
be renewed together with the control unit. |
To separate the control unit from the hydraulic unit, the
ESP unit must be removed first. |
Return flow pump must not be separated from hydraulic unit. |
Printed circuit board is exposed when control unit is
removed. |
Neither moisture nor particles of dirt may enter the
interior of the control unit. |
Avoid electrostatic charge! |
This electrostatic charge can cause malfunctions if you
touch electric components. |
– |
Before working on electric components, touch an earthed
object, ESD workplace -VAS 6613-. Do not directly touch
connector contacts or electronic components. |
– |
Lay down hydraulic unit together with control unit on ESD
workplace -VAS 6613-. |
– |
Unscrew the 3 Torx bolts from control unit and lay them
aside immediately (to avoid interchanging with the new Torx
bolts). |
– |
Set hydraulic unit with control unit facing upwards on ESD
workplace -VAS 6613-. |
|
|
|
– |
Taking care not to cant control unit, pull it off hydraulic
unit. |
– |
Cover control unit solenoids with a lint-free cloth. |
– |
Check cleanliness of hydraulic unit sealing surface; clean
with methylated spirits and a lint-free cloth if necessary. |
The sealing surface of the hydraulic unit may not be worked
with a file, metal scraper, sandpaper or similar. |
If the sealing surface of the hydraulic unit is damaged
(e.g. scoring, scratches), the hydraulic unit must be renewed
together with the control unit. |
The seal of the control unit may not be pulled out or
raised. |
The seal of the control unit cannot be renewed. |
|
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On hydraulic unit:
1 -
From hydraulic unit to rear left brake caliper.
-
Identification: Ш 5. ...
Special tools and workshop equipment
required
ESD workplace -VAS 6613-
Torque screwdriver -V.A.G 1624-
...
Other materials:
Routing and securing wiring
Mark lines prior to removal to prevent them from being
interchanged and to ensure that they are fitted in their
original positions. This applies for fuel, hydraulic and vacuum
lines as well as lines for activated charcoal filter system and
electrical wir ...
Assembly overview - brake pedal, LHD vehicles
The brake pedal travel must not be restricted by additional
floor coverings.
Note
Do not lubricate or grease the pivot pin. The pivot pin must
remain dry.
1 -
S ...
Cleaning windows and exterior mirrors
First read and observe the introductory information
and safety warnings Cleaning windows and exterior mirrors
Moisten the windows and exterior mirrors with commercially available, alcohol-based
glass cleaner.
Dry the glass surfaces with a clean chamois leather or a lint-free cloth. Chamois ...
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