VW Golf manuals

Volkswagen Golf Service & Repair Manual: Removing and installing brake master cylinder, LHD vehicles

Special tools and workshop equipment required
   
Brake filling and bleeding equipment -VAS 5234-
 

Removing and installing brake master cylinder, LHD vehicles

Torque wrench -V.A.G 1331-
 

Removing and installing brake master cylinder, LHD vehicles

Sealing tool -T10249-
Removing
–  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.
 

Removing and installing brake master cylinder, LHD vehicles

Vehicles with diesel engine:
–  Remove engine cover panel.
–  Loosen hose clip -1- and remove air intake hose and air filter housing → Rep. gr.23.
 

Removing and installing brake master cylinder, LHD vehicles

On »R« vehicles:
–  Loosen hose clips -2- and -3-.
–  Remove air intake hose -1- and air filter housing → Rep. gr.24.
 

Removing and installing brake master cylinder, LHD vehicles

Continuation for all models:
–  Remove battery tray → Electrical system; Rep. gr.27.
–  Place sufficient lint-free cloths in area of engine and gearbox.
 

Removing and installing brake master cylinder, LHD vehicles

–  Draw off as much brake fluid as possible from brake fluid reservoir using brake filling and bleeding equipment -VAS 5234-.
 

Removing and installing brake master cylinder, LHD vehicles

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.
 

Removing and installing brake master cylinder, LHD vehicles

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-.
 

Removing and installing brake master cylinder, LHD vehicles

–  Unscrew Torx bolt -1- and pull brake fluid reservoir -2- out of sealing plugs.
 

Removing and installing brake master cylinder, LHD vehicles

–  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.
Installing
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.
Specified torques
→ Chapter „Assembly overview - brake servo/brake master cylinder, LHD vehicles“
 

Removing and installing brake master cylinder, LHD vehicles

Removing and installing brake servo for vehicles with 1.2 l and 1.4 l petrol engines
  Note If there are problems with the brake servo, first check the brake servo vacuum system → Chapter.     ...

Removing and installing brake master cylinder, RHD vehicles
  Note If there are problems with the brake servo, first check the brake servo vacuum system → Chapter. Special tools a ...

Other materials:

Charging battery in support mode with battery charger -VAS 5903-
General notes: The support mode provides the onboard supply with power when the battery is removed or disconnected. For further information, refer to the → operating manual VAS 5903. The ...

Pressure and boiling point
The boiling points given in the table below are always based on an atmospheric pressure of 1 bar. If the pressure on a liquid is changed, its boiling point changes also. It is well known that, for example, the lower the pressure, the low ...

Removing and installing brake caliper
Special tools and workshop equipment required Vehicle diagnosis, testing and information system -VAS 5051- Tool set for brake bleeding -VAS 6564- Insert tool with ratchet -VAS 6784- Bit attachment (7 mm) -T10503- ...

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