2000 AUDI A8 01V Transmission Center Differential Service Workshop Manual

39-53


36 -
Output pinion
For front final driveInstallation position: gear identification
faces toward transfer gear
37 -
Seal Always replace page 39
-67
Pa
ge 9 of 29 Center differential, 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.AT01.39.4

39-54


Fig. 1 Press off grooved ball bearing for spur gear 1
A - Separating device 22-115 mm, e.g. Kukko 17/2 separating tool

Fig. 2 Press on grooved ball bearing for spur gear 1
Pa
ge 10 of 29 Center differential, 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.AT01.39.4

39-55


Fig. 3 Press off grooved ball bearing for spur gear 2
A - Separating device 22-115 mm, e.g. Kukko 17/2 separating tool

Fig. 4 Press on grooved ball bearing for spur gear 2
Pa
ge 11 of 29 Center differential, 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.AT01.39.4

39-56

Center differential, removing and
installing


Removing

- Remove front exhaust pipes:

Repair Manual, Engine Mechanical, Repair
Group 26; removing and installing exhaust
system

- Unbolt heat shield for driveshaft from cover for Torsen differential
(arrows).
Pa
ge 12 of 29 Center differential, 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.AT01.39.4

39-57


- Unbolt driveshaft -1- from transmission and let rest on heat shield -2-
page 39
-79
, Driveshaft, removing and installing.
- Secure driveshaft using wire (arrow) at bracket -3- of fuel lines.
- Drain center differential gear oil page 39
-40
.

WARNING!
Carefully pull center differential housing off of transmission toward
rear. The Torsen differential could otherwise fall out of the
transmission. - Loosen mounting bolts (arrows) for center differential housing in
diagonal sequence and remove.
Pa
ge 13 of 29 Center differential, 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.AT01.39.4

39-58


Installing
Installation is reverse of removal, noting the following: - Pull Torsen differential off output shaft toward rear.

Note:
Lightly coat sealing surface -D- with gear oil to prevent the seal from
slipping. - Check for alignment bushing (arrow A) and (arrow B).
- Install gasket
- Slide cleaned magnet into cast holding pocket -1- in intermediate
flange.
Pa
ge 14 of 29 Center differential, 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.AT01.39.4

39-59

- Add 200 ml. gear oil to output housing
(comparable to gear oil, topping up on removed
and disassembled center differential page 39
-
43
).

- Install Torsen differential onto splines of output shaft and bottom spur
gear while turning slowly.
- Check whether installed Torsen differential can be turned by hand.

- Install fully assembled transfer housing with installed spur gears and
rear drive flange onto transmission flange.
- Insert bolts for transfer housing and tighten to final tightening torque in
diagonal sequence in several stages.
- Bolt driveshaft to transmission flange page 39
-79
, Driveshaft,
removing and installing.
- Fill transfer housing with gear oil and check oil level page 39
-40
.
Pa
ge 15 of 29 Center differential, 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.AT01.39.4

39-60

Tightening torques

Component
Nm
Center differential housing to transmission
housing 23
Heat shield for driveshaft to transmission 23
Pa
ge 16 of 29 Center differential, 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.AT01.39.4