Volkswagen Golf Service & Repair Manual: Removing and installing brake master cylinder, LHD vehicles
| Special tools and workshop equipment
required |
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|
| Brake filling and bleeding equipment -VAS 5234- |
|
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|
| Torque wrench -V.A.G 1331- |
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| – |
If vehicle has a coded radio, note radio code or, if
necessary, request it. |
| – |
Disconnect battery
→ Electrical system; Rep. gr.27 |
| – |
Remove battery
→ Electrical system; Rep. gr.27. |
|
|
|
| Vehicles with diesel engine: |
| – |
Remove engine cover panel. |
| – |
Loosen hose clip -1- and remove
air intake hose and air filter housing
→ Rep. gr.23. |
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|
| – |
Loosen hose clips -2- and
-3-. |
| – |
Remove air intake hose -1- and
air filter housing
→ Rep. gr.24. |
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| Continuation for all models: |
| – |
Remove battery tray
→ Electrical system; Rep. gr.27. |
| – |
Place sufficient lint-free cloths in area of engine and
gearbox. |
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|
|
| – |
Draw off as much brake fluid as possible from brake fluid
reservoir using brake filling and bleeding equipment -VAS 5234-. |
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| Vehicles with manual gearbox: |
| – |
Pull off supply hose -1- for
clutch master cylinder, seal it using sealing tool -T10249- and
tie it up, or clamp off supply hose -1-
for clutch master cylinder using commercially available tool,
e.g. Hazet 4590, and pull it off. |
|
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| Continuation for all models: |
| – |
Disconnect connector from brake fluid level warning contact
-F34--3-, from vacuum sender -G608--2-
(if fitted) and from brake light switch -F--1-. |
|
|
|
| – |
Unscrew Torx bolt -1- and pull
brake fluid reservoir -2- out of
sealing plugs. |
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| – |
Unscrew brake lines -1- from
brake master cylinder, and seal brake lines with plugs from
repair kit with part no. 1H0 698 311 A. |
| – |
Unscrew nuts -2- from brake
master cylinder. |
| – |
Remove heat shield (if installed). |
| – |
Carefully take brake master cylinder out of brake servo. |
| – |
Unscrew brake light switch -F- from brake master cylinder. |
| Install in reverse order of removal, observing the
following: |
| – |
When assembling brake master cylinder with brake servo, make
sure plunger rod is properly positioned in brake master
cylinder. |
| Seals must be located in supply hose for clutch master
cylinder. |
| – |
Bleed brake system
→ Chapter. |
| → Chapter „Assembly overview - brake servo/brake master
cylinder, LHD vehicles“ |
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Note
If there are problems with the brake servo, first check the
brake servo vacuum system
→ Chapter.
...
Note
If there are problems with the brake servo, first check the
brake servo vacuum system
→ Chapter.
Special tools a ...
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→ Operation via the infotainment system  
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Control unit in dash panel insert -J285-
2 -
Telephone microphone -R38-
Installed in front section of roof console
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→ Chapter
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