Audi Workshop Service and Repair Manuals

Exploded view of wheel bearing housing, wheel bearing unit

1 -

Nut

q

40 Nm

q	Always renew if removed

2 -	Upper link (front)

3 -	Upper link (rear)

4 -

Bolt

q	Always renew if removed

5 -

Washer

6 -	Wheel bearing housing

q	Removing and installing → Chapter

q	Different versions; for correct version, refer to → Electronic parts catalogue

q	Distinguishing feature → Anchor

WARNING When renewing the wheel bearing housing, make sure that the thread of the pin on the track rod ball joint is long enough (the thread should project about 5 mm beyond the steering arm). If this is not the case, a new track rod ball joint with a longer pin thread must also be fitted; for correct version refer to → Electronic parts catalogue.

7 -	Splash plate for brakes

8 -

Bolt

q

10 Nm

9 -

Bolt

q	200 Nm +180°

q	Always renew if removed → Chapter

q	Before securing, clean the threads in the CV joint using a thread tap

10 -

Wheel hub

q	Removing and installing → Chapter

11 -	Wheel bearing

q	Removing and installing → Chapter

Caution Avoid dirtying or damaging the seal when laying it down or placing it in storage → Fig..

12 -

Bolt

q

40 Nm

q	Always renew if removed

13 -

Nut

q	Always renew if removed

q	Different versions; for correct version, refer to → Electronic parts catalogue

q	Note different nut versions and tightening torques → Anchor

q	After detaching guide link from wheel bearing housing, remove residual adhesive from thread of joint pin.

14 -	Track control link

q	Different versions; for correct version, refer to → Electronic parts catalogue

15 -

Nut

q	Always renew if removed

q	Different versions; for correct version, refer to → Electronic parts catalogue

q	Note different nut versions and tightening torques → Anchor

q	After detaching swivel joint from wheel bearing housing, remove residual adhesive from thread of joint pin.

16 -	Guide link

q	Different versions; for correct version, refer to → Electronic parts catalogue

17 -	Track rod ball joint

q	Different versions; for correct version, refer to → Electronic parts catalogue

18 -

Nut

q	Different versions; for correct version, refer to → Electronic parts catalogue

q	Note different nut versions and tightening torques → Anchor

q	Always renew if removed

19 -

Bolt

q

9 Nm

20 -	Speed sensor

21 -	Drive shaft

22 -

Bolt

q

70 Nm

q	Always renew if removed

23 -	Countersunk bolts

q	80 Nm +90°

q	Always renew if removed

Avoiding dirtying or damaging the seal when laying it down or placing it in storage t  The wheel bearing -1- must always be pointing upwards. t  Always put down the wheel bearing unit with the wheel hub -2- facing downwards.

t  Do not touch the inside of the wheel bearing when you pick it up. t  Always take hold of the outside of the wheel bearing.

Nut versions for securing track rod ball joint t  Hexagon flange nut -A- Tightening torque: 20 Nm + 90° t  Twelve-point nut with washer -B- Tightening torque: 100 Nm t  Hexagon nut with washer -C- Tightening torque: 110 Nm

Different wheel bearing housings with different steering arm thicknesses t  Different versions of wheel bearing housing are available. The thickness of the steering arm -2- is not the same on the two different versions.

Nut versions for securing track control link and guide link t  Hexagon flange nut -A- (M12) width across flats: 21 mm Tightening torque: 145 Nm t  Hexagon nut with washer -B- (M12) width across flats: 18 mm Tightening torque: 110 Nm t  Hexagon nut with washer -B- (M12) width across flats: 21 mm Tightening torque: 120 Nm t  Hexagon nut with washer -B- (M14) width across flats: 21 mm Tightening torque: 140 Nm