Wheel Bearing Assembly Overview
vw0509jettaA-A42-0248Wheel Bearing Assembly Overview
1 Suspension Strut
2 Bolt
• Bolt point must face in direction of travel.
• Always replace if removed.
3 Left Front ABS Wheel Speed Sensor (G47) / Right Front ABS Wheel Speed Sensor (G45)
• Can be checked in Guided Fault Finding using the Vehicle Diagnostic Tester
• Before inserting wheel speed sensor, clean inner surface of bore hole and coat with securing grease (G 000 650)
4 Bolt
• M6 x 16
• 8 Nm
5 Tie Rod End
6 Wheel Hub with Wheel Bearing
• Removing and installing, refer to => [ Wheel Bearing Unit ] Wheel Bearing Unit.
• The ABS sensor ring is installed in the wheel bearing.
• Various versions.
7 Nut
• M12 x 1.5
• 20 Nm + 90° turn
• Self-locking
• Always replace if removed
8 Internally Vented Brake Disc
9 Bolt
• Various versions
• Hex head bolt: 200 Nm + 180° turn
• Bolt, loosening and tightening, refer to => [ Drive Axle Hex Bolt Connection, Loosening and Tightening ] Description and Operation.
• There are 2 types of twelve-point bolts, with and without ribs. Distinguishing characteristic, refer to => [ Differences Between a Twelve-Point Bolt with Ribs and a Twelve-Point Bolt without Ribs ].
• When installing a twelve-point bolt, always check what type of twelve-point bolt is to be used.
• Use the correct tightening specification for the specific bolt.
• The tightening specification for a twelve-point bolt with ribs is 70 Nm + 90° turn. For loosening and tightening specifications, refer to => [ Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening.
• The tightening specification for a twelve-point bolt without ribs is 200 Nm + 180° turn. For loosening and tightening specifications, refer to => [ Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening ] Drive Axle Twelve-Point Bolt with Ribs, Loosening and Tightening.
• Always replace if removed
10 Bolt
• Torque specification
11 Bolt
• 12 Nm
12 Cover Plate
13 Wheel Bearing Housing
• Removing and installing, refer to => [ Wheel Bearing Housing ] Wheel Bearing Housing.
• With bolted brake carrier.
• If a wheel bearing housing is replaced, vehicle must then be aligned. Refer to => [ Wheel Alignment ] Wheel Alignment.
14 Bolt
• M12 x 1.5 x 45
• 70 Nm + 90° turn
• Always replace if removed.
15 Drive Axle
• Overview, refer to => [ Drive Axle Overview ] Drive Axle Overview.
16 Nut
• M12 x 1.5 x 80
• 70 Nm + 90° turn
• Self-locking
• Always replace if removed.
Differences Between a Twelve-Point Bolt with Ribs and a Twelve-Point Bolt without Ribs
The contact surfaces - arrow A - and - arrow B - are different on the two-point bolts.
I Twelve-point bolt with ribs - arrow A -
II Twelve-point bolt without ribs - arrow B -