Volkswagen Golf Service & Repair Manual: Removing and installing brake system pressure accumulator -VX70-, RHD
vehicles
| Special tools and workshop equipment
required |
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| Torque wrench -V.A.G 1331- |
|
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| Torque wrench -V.A.G 1410- |
| Tool inserts (11 mm) -V.A.G 1331/2- |
|
|
|
| Brake filling and bleeding equipment -VAS 5234- |
|
|
|
| Sealing plug repair kit -1H0 698 311 A- |
|
|
|
| Sealing plug -5Q0 698 311- |
|
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|
| The brake system pressure accumulator -VX70- is located on
left-hand side of the engine compartment. |
| 1 - |
Brake servo and brake master cylinder |
| 2 - |
Brake system pressure accumulator -VX70- |
| 3 - |
ABS control unit -J104- with ABS hydraulic unit -N55- |
| – |
Observe safety precautions when working in the area of
high-voltage components
→ Chapter. |
| – |
Observe the risk classification of the high-voltage system
→ Electric drive; Rep. gr.00. |
Danger to life due to high voltage.Risk of severe or fatal injury due to
electric shock.The high-voltage system must be de-energised by a
suitably qualified technician.
| – |
De-energise high-voltage system now
→ Electric drive; Rep. gr.93. |
| – |
Disconnect battery
→ Electrical system; Rep. gr.27. |
|
|
|
| – |
Disconnect connector -3-. |
| – |
Release hose clip -1- and
remove coolant hose. |
| – |
Remove coolant expansion tank from bracket. To do this,
release catch -2- with a thin
screwdriver. |
|
|
|
| – |
Unscrew nut -2- and remove
bracket -1-. |
| – |
Move coolant hoses and electrical wiring away from the area
of the brake system pressure accumulator -VX70-. |
| – |
Draw off as much brake fluid as possible from brake fluid
reservoir using brake filling and bleeding equipment -VAS 5234-. |
|
|
|
| – |
Place sufficient lint-free cloths in the area of the brake
system pressure accumulator -VX70--1-. |
| – |
Unscrew brake lines -2- from
brake system pressure accumulator -VX70--1-. |
| – |
To do this, unscrew union nuts -3-. |
| – |
Seal threaded hole immediately using sealing plugs -1H0 698
311 A- or sealing plugs -5Q0 698 311-. |
| – |
Fit dust caps from the brake caliper bleeder valves onto
brake lines. |
| – |
Release and pull off connector -4-. |
|
|
|
| – |
Pull brake system pressure accumulator -VX70--1-
together with bracket -3- and
rubber dampers -2- upwards off
bracket. |
| Install in reverse order. Note the following points: |
|
|
|
| – |
Ensure rubber dampers are seated correctly in bracket of
brake system pressure accumulator -VX70-. |
| – |
Ensure that retaining pins have been fully and evenly
inserted into rubber dampers. |
| – |
Ensure secure seating by pulling. |
| Ensure that rubber dampers of retainer are not pressed out
of bracket when installing. After installation, check that the
brake system pressure accumulator -VX70- is securely seated,
otherwise malfunction can occur. |
| – |
Bleed brake system
→ Chapter. |
| – |
Subsequently bleeding the brake system
→ Chapter. |
| – |
Perform basic setting for electromechanical brake servo
→ Vehicle
diagnostic tester. |
| → Chapter „Assembly overview – Brake system pressure accumulator
-VX70-, LHD vehicles“ |
| → Electrical system; Rep. gr.27. |
|
|
|
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
...
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
...
Other materials:
Vehicle settings menu
First read and observe the introductory information
and safety warnings
Opening the Vehicle settings menu
Switch on the ignition.
If necessary, switch on the infotainment system.
Press the
infotainment
button.
Touch the function button
to open ...
Removing and installing coolant pipes
Special tools and workshop equipment
required
Hose clamps up to 25 mm -3094-
Hose clip pliers -VAS 6362-
...
Instrument overview
Fig. 12 Instrument cluster in the dash
panel
First read and observe the introductory information
and safety warnings Descriptions of the instruments :
Rev. counter (running engine speed in revolutions x 1,000
per minute).
The start of the red zone on the dial indicates the ma ...
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Removing and installing brake system pressure accumulator -VX70-, LHD
vehicles
Removing and installing brake servo, LHD vehicles