Volkswagen Golf / Golf GTI / Jetta. Manual — part 407

45-19

Wheel speed sensor for front axle,
removing and installing

Removing

- Raise vehicle.

Installing

- Disconnect wheel speed sensor

wiring connector -1-.

- Remove bolt -2- from wheel

bearing housing.

- Remove wheel speed sensor

from wheel bearing housing.

- Before inserting speed sensor,

clean mounting hole inner surface
and coat sensor with lubricant G
000 650.

- Insert speed sensor into mounting

hole in wheel bearing housing
and tighten bolt to 8 Nm (70 in.
lb).

- Connect wheel speed sensor

wiring connector.

- Turn wheels fully to left and right

lock and check clearance of
speed sensor wiring.

ABS system components for front axle, removing and installing

45-20

ABS wheel speed sensor rotor for front axle,
checking

- Raise vehicle.

- Remove wheel.

- Rotate brake disc and check whether wheel

speed sensor rotor is damaged or dirty.

- If rotor is damaged, remove wheel hub with rotor

and replace.

Repair Manual, Suspension, Wheels,

Steering, Repair Group 40

ABS wheel speed sensor gap, checking

- Raise vehicle.

- Remove wheel.

Repair Manual, Suspension, Wheels, Steering,

Repair Group 40

- Turn wheel hub and measure distance between

rotor and speed sensor, -dimension a- , all
around.

Dimension a = 0.3 mm (0.0118 in.)

- If the rotor is not true, remove wheel hub with

rotor and replace.

ABS system components for front axle, removing and installing

45-21

Front wheel speed sensor wiring,
removing and installing

Special tools and equipment

Removing

VAS 1978 wiring repair set

- Obtain radio code on vehicles

with coded radio.

- Disconnect battery.

- Remove Mass Air Flow (MAF)

sensor connector -1- from air filter
duct.

- Remove bolts -2- at air filter -3-

and place filter to left side.

- On vehicles with diesel engines,

remove relay panel above brake
booster.

ABS system components for front axle, removing and installing

45-22

- Release connector from control

module (arrow -1-) and pull off
(arrow -2-)

- Using a screwdriver, lift cover of

multi-pin connector and remove.

ABS system components for front axle, removing and installing