Volkswagen Golf Service & Repair Manual: Removing and installing brake system pressure accumulator -VX70-, RHD
vehicles
| Special tools and workshop equipment
required |
|
|
|
| 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-
...
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Removing and installing brake system pressure accumulator -VX70-, LHD
vehicles
Removing and installing brake servo, LHD vehicles