Wheel Bearing/Hub Unit (W/Rear Disc Brakes), Remove & Install

Wheel bearing and wheel hub unit (vehicles with rear disc brakes), removing and installing





Special tools and equipment
^ VW 637/2 Grease cap puller
^ 3241/4 Seal installer
^ 3420 Assembly tool
^ VAG 1332 Torque wrench
^ VAG 1410 Torque wrench





Fig. 1 Loosen dust cap
Loosen dust cap from seat by tapping lightly on claw.





Fig. 2 Prying off dust cap





Fig. 3 Removing brake caliper
- Counter-hold on guide pins and remove securing bolts from brake caliper.
- Remove brake caliper and hang up on body.

CAUTION:
^ Suspend brake caliper using a piece of wire or similar.
^ Do not allow the caliper to hang by the brake hose. The unsupported weight can stretch and damage the hose.

- Remove Phillips-head screw from brake disc and remove brake disc.
- Remove 12-point nut.





Fig. 4 Removing wheel bearing/hub unit
A - Puller, e.g. Kukko 20/2





Fig. 5 Pulling bearing inner race off stub axle
Only use puller with a tightening clamp -A-, (e.g. Kukko 204-2) (commercially type).





Fig. 6 Pulling wheel bearing/wheel hub unit onto stub axle
- Install wheel bearing/hub unit as far as possible onto stub axle.
- Install assembly tool 3420 and pull wheel bearing/wheel hub unit on to limit stop.
- Remove assembly tool 3420.





Fig. 7 Securing wheel bearing and hub unit
- Install new 12-point nut -A- and tighten it to 175 Nm (129 ft. lbs.).
- Install brake disc.





Fig. 8 Driving in dust cap

Notes:
^ Always replace dust cap.
^ Damaged (dented) dust caps allow moisture contamination, therefore always use the tool illustrated.

Installation is the reverse of removal.

Fastener/location Tightening torques
Brake caliper to rear axle 65 Nm (48 ft. lbs.)
Brake disc to wheel hub 4 Nm (35 inch lbs.)