warning AUDI A8 1999 D2 / 1.G 01V Transmission Center Differential Service Workshop Manual

39-46


WARNING!
Do not run engine with the center differential
removed or without gear oil and do not tow
vehicle.
Notes:
The parts listed in the following illustration can be
removed with the transmission installed.
4020 press tube
3118 press support
Item 3 Kukko 17/2 separating tool
Rules of cleanliness for working on automatic
transmissions page 37
-148
.
General repair notes page 00
-27
.
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39-48


9 -
Spur gear 1
For rear gear setIf damaged, only replace together with spur
gear 2 -Item 17 - Always replace To remove and install, pull out of center
differential housing toward rear together
with -item 7 - and -item 8 -
10 -
Snap ring
11 -
Needle bearing For spur gear 1Only remove for replacementTo insert, heat up transfer gear housing to
approx. 100 C and drive out needle
bearing toward rear using drift (Warning!
Wear protective gloves) Drive in to stop using 3021 protractor
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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.
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39-68

WARNING!

Do not reinstall spur gears that have fallen to
the ground. The transmission must be
replaced in this case.

- Drive out seal using drift.

Installing
Installation is reverse of removal, noting the
following:

- Slide seal onto 3403 thrust piece.
- Drive seal in up to 3403 thrust piece stop.
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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.
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39-72

Installing
Installation is the reverse of removal. Also carry
out the following procedure.

- Check needle bearing seat in transfer housing
for damage, rework if necessary.

- Using commercially available hot air blower,
uniformly heat up outside of transfer housing in
vicinity of needle bearing seat to approx. 100 C.
WARNING!

Wear protective gloves!

- Place 2080A sleeve onto new needle bearing -1-.
- Drive needle bearing into transfer housing up to stop using VW408A
punch.
Pa
ge 29 of 29 Center differential, servicin
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11/20/2002 htt
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play?action=Goto&t
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e=re
pair&id=AUDI.B5.AT01.39.4