Volkswagen Golf / Golf GTI / Jetta. Manual — part 472

47-34

Note:

Brake fluid is poisonous. Also due to its

corrosive effect brake fluid must not come into
contact with paintwork.

Brake fluid must always be stored in air tight

containers.

Do not use silicone-based brake fluid (DOT 5).

Even the smallest trace can cause severe
corrosion in the brake system.

Rinse off brake fluid spillages using plenty of

water.

Brake system, bleeding

47-35

Bleeding brake system with
brake filler and bleeder unit
VAS 5234, vehicles with ABS
Mark 20

Special tools and equipment

Note:

Brake filler and bleeder unit VAS

5234

Bleeding the brake system on

vehicles with ABS is the same as
for vehicles with a conventional
brake system with the exception
of using function 04 to bleed
systems that have been
completely empty.

On vehicles with a brake

pressure regulator, move the
regulator lever when bleeding
rear brakes.

- Connect brake filling and bleeding

unit.

- Open bleeder valves in specified

sequence and bleed brake
calipers.

Brake system, bleeding

47-36

Bleeding sequence

1 - Right rear caliper

2 - Left rear caliper

3 - Right front caliper

4 - Left front caliper

Vehicles with ABS or ABS/EDL

- Test drive vehicle and perform at least one

brake application sufficient to engage ABS
regulation.

Brake system, bleeding

47-37

Brake system, bleeding without
pressure bleeder

- Build-up brake pressure in brake system by

pumping brake pedal.

- Connect hose from bleeder bottle to brake

bleeder valve at each wheel in turn (Bleeding
sequence

Page 47-36

).

- Open bleeder valve.

- Hold brake pedal down, close bleeder screw.

Note:

The brake fluid level in the reservoir must not fall

below the MIN mark during bleeding.

- Release brake pedal.

- Repeat operation until brake fluid flows without

air bubbles.

Brake fluid, changing

Repair Manual, Maintenance

Brake system, bleeding