1999 AUDI A8 transmission

39-5


Front final drive, servicing Notes:
Transmission installed
General repair notes page 00
-27
.
Rules of cleanliness for working on automatic
transmissions page 37
-148
.
1 -
Seal
Between final drive and transmission
housing Always replace page 39
-28
2 -
Adjustment shim
Behind tapered roller bearing outer race
3 -
Tapered roller bearing outer race
4 -
O-ring Always replace
Pa
ge 1 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2

39-11

- Remove right drive flange.

Installing - Drive flange seal, pulling out.
- Coat outer edge of oil seal with gear oil.

- Drive in new seal to stop, without canting.

Installation position: The open side of the seal faces the
transmission.
- Install right drive flange.
Pa
ge 7 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2

39-12


Repair Manual, Suspension, Wheels, Steering, Repair Group 40; Drive
axle, removing and installing

Tightening torques - Install bolt for drive flange (arrow, 23 Nm) while securing drive flange
against turning, using a drift.
- Install drive axle.
- Install heat shield for right drive axle.
- Checking oil level in front final drive page 39
-1 .
Component

Nm
Drive flange to transmission 23
Drive axle to drive flange M10 77
Driveshaft to drive flange M8 39
Heat shield for driveshaft to transmission
23
Pa
ge 8 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2

39-16


Note:
The left drive flange can be pulled out between body and subframe with
the transmission installed if the drive flange mounting bracket is turned
approx. 60 to the right against the installed position. - Remove drive flange mounting bracket (arrows).
- Pull out drive flange.
Pa
ge 13 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2

39-20

Installing seal

- Coat outer edge and sealing lip of oil seal with
gear oil.

- Drive in new seal to stop, without canting.

Installation position: The open side of the seal faces the
transmission.

Note:
If necessary, coat contact surface with grease to affix drive wheel in
installation position. - Set Speedometer Vehicle Speed Sensor (VSS) -G22- on drive flange
(arrow).

Installation position: The carriers at drive wheel must engage in
grooves of drive flange
Pa
ge 17 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2

39-22

Installing left drive flange.

- Replace O-ring (arrow B) in drive flange mounting bracket.

Note:
When sliding in, left drive flange must be carefully guided by hand to
prevent damage to the double seal in transmission.
Repair Manual, Suspension, Wheels, Steering, Repair Group 40; Drive axle, removing and installing
- Check drive flange for sharp edges on transmission side of flange end
and if necessary, deburr.
- Insert left drive flange into transmission.
- Install drive axle.
- Install heat shield for left drive axle.
- Checking oil level in front final drive page 39
-1 .
Pa
ge 19 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2

39-23

Tightening torques

Component

Nm
Mounting bracket for left drive flange at
transmission
23
Drive axle to drive flange M10 77
Driveshaft to drive flange M8 39
Heat shield for driveshaft to transmission
23
Pa
ge 20 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2

39-24

Seal for front final drive, replacing


Special tools and equipment

Removing
Repair Manual, Engine Mechanical, Repair Group 26; removing and
installing exhaust system.
All Wheel Drive (AWD) vehicles:
VAG1383A engine/transmission hoist
- Remove right front exhaust pipe:
- Remove heat shield for selector lever cable.
- Remove center differential page 39
-56
.

- Remove bolts (arrows) at intermediate flange for front final drive.
Pa
ge 21 of 37 Front final drive, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.AT01.39.2