Volkswagen Golf / Golf GTI / Jetta. Manual — part 463

47-3

Front brake caliper piston,
removing and installing

Special tools and equipment

Removing

3409 Wedge

Piston resetting tool

Note:

Place a piece of wood in the recess
to prevent damaging the piston.

- Force piston out of brake caliper

housing using compressed air.

Front brake calipers, servicing

47-4

Note:

When removing ensure that the
surface of the cylinder is not
damaged.

Installing

- Remove seal using wedge 3409.

- The surface of the piston and seal

must only be cleaned with
methylated spirits and then dried.

- Thinly coat piston and seal with

assembly paste G 052 150 A2
before inserting.

- Insert oil seal in brake caliper

housing.

- Place protective seal with the

outer sealing lip on the piston.

Front brake calipers, servicing

47-5

Note:

When doing this hold piston in front
of caliper housing.

- Using wedge 3409, insert the

inner sealing lip into the grove in
the cylinder.

Note:

The protective seal outer sealing lip
must slip into the piston groove.

- Press piston into brake caliper

housing using piston resetting
tool.

Front brake calipers, servicing

47-6

FN 3
front
brake
calipers,
servicing

Note:

Install all

parts
supplied in
repair kit.

New brake

calipers
are filled
with brake
fluid and
are pre-
bled.

Apply thin

coat of
assembly
lubricant G
052 150
A2 to
brake
cylinders,
pistons
and seals.

1

-

Protective
seal

2 - Bleeder

valve

Apply

thin coat
of
assembly
lubricant
G 052
150 A2
to
threads
before
screwing
in

FN 3 front brake calipers, servicing