2000 AUDI A4 ECU

39-50


18 -
Grooved ball bearing
For spur gear 2Pressing off Fig. 3
, page 39
-55
Pressing on Fig. 4
, page 39
-55
19 -
Snap ring
For securing grooved ball bearing -item 18
- in center differential housing
20 -
Washer For grooved ball bearing -item 18 -Before installing, clip on guide plate -item
21 -
21 -
Alignment plate
22 -
Bolt 10 Nm
23 -
Snap ring For securing grooved ball bearing -item 18
- on spur gear 2 - item 17 -
Pa
ge 6 of 29 Center differential, servicin
g
11/20/2002 htt
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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
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11/20/2002 htt
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39-62


- 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
.

- Unbolt output flange while securing output flange against turning using
a drift.
- Pull out output flange.
Pa
ge 18 of 29 Center differential, servicin
g
11/20/2002 htt
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39-64

Installing
Installation is reverse of removal, noting the
following:

Tightening torques - Drive O-ring in to stop using 3402 pressure piece.
- Secure output flange with socket-head bolt.
- 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
.
Component
Nm
Socket-head bolt for rear drive flange 25
Heat shield for driveshaft to transmission 23
Pa
ge 20 of 29 Center differential, servicin
g
11/20/2002 htt
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39-71


WARNING!
Wear protective gloves! - Spread extractor -B- into upper lip of needle bearing -1- and secure
extractor at nut.
- Install retainer -A- on extractor -B- as illustrated.
- Support retainer -A- using VW402 thrust plate and pre-tension at nut 3
of retainer.
- Using commercially available hot air blower, quickly heat up outside of
transfer housing in vicinity of needle bearing seat to approx. 100 C. - Quickly pull out needle bearing.
Pa
ge 28 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