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- |
|
|
|
| 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- |
|
|
|
| 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 key
Fig. 22 Vehicle key
Fig. 23 Vehicle key with alarm button
First read and observe the introductory information
and safety warnings Vehicle key
The key can be used to lock and unlock the car from a distance .
The remote control transmitter and the battery are integrated in the key. The ...
Vehicles with torsion beam axle
1 -
Rubber mounting
Renew if damaged
2 -
Bolt
20 Nm
3 -
Mounting
Renew if damaged
4 -
Rear silencer
In initial equipmen ...
Connection diagram - activated charcoal filter
Note
Fuel tank leak detection takes advantage of the fact that a
vacuum develops naturally in the fuel system as the fuel in the
tank cools. The variables temperature and pressure are necessary
for fuel tank leak detection. The temperature senso ...
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Removing and installing brake system pressure accumulator -VX70-, LHD
vehicles
Removing and installing brake servo, LHD vehicles