Volkswagen Golf Service & Repair Manual: Removing and installing brake system pressure accumulator -VX70-, LHD
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- |
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Brake filling and bleeding equipment -VAS 5234- |
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Sealing plug repair kit -1H0 698 311 A- |
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2 - |
Brake servo and brake master cylinder |
3 - |
Brake system pressure accumulator -VX70- |
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Observe safety precautions when working in the area of
high-voltage components
→ Chapter. |
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Observe the risk classification of the high-voltage system
→ Electric drive; Rep. gr.00. |
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Danger to life due to high voltage |
The high-voltage system is under high voltage. If high-voltage
components are damaged, there is a risk of severe or fatal injury due to
electric shock. |
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Carry out visual inspection of high-voltage components and cables. |
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Never use cutting or forming tools, or any others with sharp edges. |
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Never use heat sources such as welding, soldering, thermal bonding
or hot air. |
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Disconnect battery
→ Electrical system; Rep. gr.27. |
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Remove power and control electronics for electric drive
-JX1-
→ Electrical system; Rep. gr.93. |
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Remove bracket for power and control electronics for
electric drive -JX1-
→ Electrical system; Rep. gr.93. |
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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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Place sufficient lint-free cloths in the area of the brake
system pressure accumulator -VX70--1-. |
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Unscrew brake line -1- from
brake system pressure accumulator -VX70--2-. |
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Seal threaded hole immediately using sealing plugs -1H0 698
311 A-. |
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Fit a dust cap from the bleeder valve onto brake line. |
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Pull brake system pressure accumulator -VX70--2-
together with bracket -4- and
rubber dampers -5- upwards off
bracket -6-. |
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Slightly tilt brake system pressure accumulator -VX70-, then
release and pull off connector -3-. |
Install in reverse order. Note the following points: |
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Ensure rubber dampers -5- are
seated correctly in bracket -4- of
brake system pressure accumulator -VX70-. |
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Ensure that retaining pins have been fully and evenly
inserted into rubber dampers. |
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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. |
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Bleed brake system
→ Chapter. |
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Subsequently bleeding the brake system
→ Chapter. |
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Perform basic setting for electromechanical brake servo
→ Vehicle
diagnostic tester. |
→ Chapter „Assembly overview - brake servo/brake master
cylinder, LHD vehicles“ |
→ Chapter „Assembly overview – Brake system pressure accumulator
-VX70-“ |
→ Electrical system; Rep. gr.93 |
→ Electrical system; Rep. gr.27. |
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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:
Indicator lamp
First read and observe the introductory information
and safety warnings
Lit up
Possible cause
Solution
Engine management system fault (Electronic Power Control).
The engine should be checked by a qualified workshop
as s ...
Checking shock absorbers when removed
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Note
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Assembly overview - rear window washer system, GTI and GTD
1 -
Connection for high-level brake light
2 -
Connection for washer fluid hose
For rear window washer system.
3 -
Water line
Leading to spray jet of rear window washer system; location: ...
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