Torque settings

[Tank.]

will be attempting to replace rear wheel hub/bearing assembly on my 3.0 quattro.

Wondered if someone could give me the torue settings for the mounting bolts and central hub nut, phoned audi and spoke to someone in the workshop but refused to give out details for safety reasons

also wondered if anyone had torque settings for drive shaft bolts and the flange that mounts into the rear diff?

many thanks

 

[RoyC]

Wheel bearing housing, wheel bearing unit, shock absorber for coil springs - exploded view

1 - Eccentric washer
2 - Nut
q 95 Nm
3 - Wheel bearing housing
q Removing and installing → Chapter
4 - Ball bearing
q Items 4 and 5 are only installed in vehicles with four-wheel drive
q Servicing wheel bearing unit → Chapter
5 - Wheel hub
q Items 5 and 4 are only installed in vehicles with four-wheel drive
q Servicing wheel bearing unit → Chapter
6 - Wheel bearing unit
q Removing and installing → Chapter
q Complete wheel bearing unit is only installed on vehicles with front-wheel drive
q Wheel bearing unit cannot be repaired
7 - Bolt
q 200 Nm +180°
q Always renew if removed
8 - Splash plate for brake disc
9 - Hexagon bolt
10 - Bolt
q 85 Nm +90°
q Always renew if removed
11 - Track rod
12 - Stone deflector
q Only fitted on heavy-duty running gear version
13 - Retaining clip
14 - Nut
15 - Bolt
q 85 Nm +90°
q Always renew if removed
16 - Trapezium link with stone deflector
17 - Nut
18 - Washer
19 - Shock absorber
q Removing and installing → Chapter
20 - Protective sleeve
q On RS 6 vehicles: secured to bump stop and retaining ring
q On RS 6 vehicles: note position → Fig.
21 - Bump stop
22 - Bolt
q 35 Nm
23 - Shock absorber mounting
24 - Nut
q 25 Nm
25 - 12-point socket head bolt
q Always renew if removed
q 70 Nm
26 - Drive shaft
27 - Upper transverse link
28 - Eccentric bolt
29 - Bolt
q 150 Nm +90°
q Always renew if removed
30 - Countersunk bolt
q 80 Nm +90°
q Always renew if removed


Correct position of protective sleeve on RS 6 vehicles
-A- 0° ± 2° position of slot in retaining ring on protective sleeve

 

[Tank.]

Perfect! thank you very much!
Do you know if the wheel bearing unit a press fit or is it just the 4 bolts holding it in place

 

[RoyC]

Removing and installing wheel bearing unit
Special tools and workshop equipment required

t Torque wrench -V.A.G 1332-

Removing
Vehicles with coil springs
Front-wheel drive
– Remove wheel.
Four-wheel drive
– Remove wheel trim; on light-alloy wheels, pull off trim cap (use puller in vehicle tool kit).
– Loosen flange bolt securing outer joint of drive shaft (loosen only when vehicle is standing on its wheels -accident risk-) → Chapter.
– Remove coil spring → Chapter.
– Remove wheel speed sensor -3- → Rep. gr.45.
– Remove drive shaft → Chapter.
Vehicles with air suspension
Front-wheel drive
– Position vehicle on lifting platform → Chapter.
– Remove wheel.
Four-wheel drive
– Position vehicle on lifting platform → Chapter.
– Remove wheel trim; on light-alloy wheels, pull off trim cap (use puller in vehicle tool kit).
– Loosen flange bolt securing outer joint of drive shaft (loosen only when vehicle is standing on its wheels -accident risk-) → Chapter.
– Remove air spring → Chapter.

– Remove wheel speed sensor -3- → Rep. gr.45.
– Remove drive shaft → Chapter.
All vehicles
– Detach brake caliper and brake disc → Rep. gr.46.
– Secure brake caliper to body so that weight of caliper does not stretch or damage brake hose or brake pipe.

– Unscrew countersunk bolts -1-.
– Take out wheel bearing unit.
Avoid dirtying or damaging the seal when laying down or storing the wheel bearing.

The wheel bearing -1- must always be pointing upwards.
– Always put down the wheel bearing unit with the wheel hub -2- facing downwards.
Installing
Installation is carried out in the reverse sequence. Note the following points:
Tightening torques → Chapter
– Install drive shaft → Chapter.
– On vehicles with air suspension, install air spring → Chapter.
– On vehicles with four-wheel drive: Tighten flange bolt securing outer joint of drive shaft (vehicle must be standing on its wheels - accident risk) → Chapter.

 

[Tank.]

wow! where do you find all this?

So sorry put simply the only special tool is a torque wrench and no press is required

 

[RoyC]

wow! where do you find all this?

ElsaWin, off ebay

 

[Tank.]

Ah ideal!

Did watch videos last night and can remove the hub unit from the car without specialist tools but would still need a press to remove the wheel hub from the bearing and into the new bearing

 

[RoyC]

Servicing wheel bearing unit (only possible on four-wheel drive vehicles)

Ah ideal!

Did watch videos last night and can remove the hub unit from the car without specialist tools but would still need a press to remove the wheel hub from the bearing and into the new bearing

Sorry, I thought that you asked for the wheel bearing unit



Servicing wheel bearing unit (only possible on four-wheel drive vehicles)

Special tools and workshop equipment required
t Thrust plate -VW 401-
t Thrust plate -VW 402-
t Press tool -VW 407-
t Press tool -VW 412-


t Drift sleeve -40-20-

t Press tool -VW 473-

t Splitter 3 -Kukko 17/2-

t Assembly tool -T40089/2-
l Wheel bearing unit removed → Chapter

Pressing wheel hub out of wheel bearing

Pressing inner bearing race off wheel hub
– Apply splitter between inner bearing race -1- and deflector ring -2-, and tighten spindle.

Use commercially available splitter, e.g. Kukko 17/2.
The deflector ring becomes deformed in this process and must then be renewed.

– Press inner wheel bearing race off wheel hub.

Renewing deflector ring for wheel bearing
– Carefully prise off old deflector ring -1- using a screwdriver.
– Fit new deflector ring on wheel hub.

– Apply special tools as shown in illustration.
1 - Press tool -VW 473-
2 - Assembly tool -T40089/2-
3 - Deflector ring
4 - Wheel hub
5 - Thrust plate -VW 401-
– Press on deflector ring as far as radius on wheel hub using assembly tool -T40089/2- as illustrated.

The deflector ring must be pressed on until it is seated against the radius on the wheel hub.

Pressing wheel hub into wheel bearing
– Apply the special tools as shown.
1 - Press tool -VW 412-
2 - Thrust plate -VW 402-
3 - Wheel hub
4 - Ball bearing
5 - Thrust plate -VW 401-

The machined surface of the wheel bearing outer race faces downwards.

Make sure no dirt gets between thrust plate -VW 401--5- and ball bearing -4- when pressing in the hub or when the parts are placed on a workbench, etc.
– Install wheel bearing unit → Chapter.