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Removing and installing wheel bearing unit > < Replace bonded rubber bearing of the lower track control link replace

Leon Mk1

Wheel bearing assembly: Assembly overview
   
Wheel bearing assembly: Assembly overview
1 - Suspension strut
2 - Multi-point socket head bolt
q   The end of the hexagonal bolt should face in the direction of travel of the vehicle
3 - Front left speed sensor -G47- / front right speed sensor -G45-
q   Can be tested in guided fault finding using → Vehicle diagnostic tester
q   Before inserting speed sensor, clean inner surface of fitting hole and coat with lubricating paste -G 000 650-.
4 - Hexagon socket head bolt
q   M6 x 16
q   8 Nm
5 - Track rod ball joint
6 - Wheel hub with wheel bearing
q   The ABS sensor ring is fitted in the wheel hub
q   Different versions available
q   Assignment → Electronic parts catalogue „ETKA“
7 - Nut
q   M12 x 1.5
q   Tighten to 100 Nm, then loosen (turn back) 180° and retighten to 100 Nm
q   Self-locking
q   Always renew if removed
8 - Internally ventilated brake disc
9 - Bolt.
q   Different versions available
q   Assignment → Electronic parts catalogue „ETKA“
  WARNING
t  There are two versions of the twelve-point head bolt, with and without ribbing. Distinguishing feature → Fig..
t  When installing a twelve-point head bolt, always note which version is being installed.
t  The respective specified torque must also be used.
t  The specified torque for twelve-point head bolts »without« ribbing is 70 Nm + 90° when loosening and tightening → Chapter.
t  The specified torque for twelve-point head bolts »without« ribbing is 200 Nm + 180° when loosening and tightening → Chapter.
q   Always renew if removed
10 - Bolt.
q   Torque setting → Brake systems; Rep. gr.46.
11 - Multi-point socket head bolt
q   M6 x 12
q   12 Nm
12 - Cover plate
13 - Wheel bearing housing
q   removing and installing → Chapter
q   With bolted-on brake carrier.
q   If wheel bearing housing is renewed, wheels must be aligned → Chapter
14 - Multi-point socket head bolt
q   M12 x 1.5 x 45
q   70 Nm and then turn 90° further
q   Always renew if removed
15 - Drive shaft
q   removing and installing → Chapter
16 - Nut
q   M12 x 1.5 x 80
q   70 Nm and then turn 90° further
q   Self-locking
q   Always renew if removed

   
Distinguishing features between twelve-point head bolt with ribbing and twelve-point head bolt without ribbing.
The twelve-point head bolts can be distinguished by the contact surfaces -arrow A- and -arrow B-.
I - Twelve-point head bolt with ribbing -arrow A-
II - Twelve-point head bolt without ribbing -arrow B-
  N40-10569

Removing and installing wheel bearing unit > < Replace bonded rubber bearing of the lower track control link replace