AUDI A8 1999 D2 / 1.G 01V Transmission Torque Tube Remove And Install Workshop Manual

39-95


Torque tube, removing and
installing Assembly overview

1 -
Bolt - 40 Nm
2 -
Front crossmember
3 -
Bolt - 40 Nm
4 -
Transmission support
5 -
Torque tube
6 -
Rear final drive housing
7 -
O-ring
8 -
Bolt - 35 Nm
9 -
Bolt - 23 Nm
10 -
Bracket
For exhaust system
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Removing

Special tools and equipment
Rear final drive installed
VW 771 slide hammer-complete set with 771/15
threaded piece
VAG1306 drip tray
Engine/transmission jack VAG1383A
engine/gearbox jack
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- Place VAG1306 drip tray underneath and drain
gear oil.

- Remove rear part of exhaust system behind
clamping sleeve(s):

Repair Manual, Engine Mechanical, Repair
Group 26; removing and installing exhaust
system
- Remove heat shields above driveshaft.

- Remove heat shield beside final drive.

- Check whether there is a factory marking (color marking) on the
driveshaft. If not, mark location of driveshaft flange -A- to rear final
drive -B- with color.
- Remove mounting bolts of driveshaft flange.
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Note:
If the driveshaft cannot be pressed upward past the flange, tie up
driveshaft after lowering final drive. When lowering, secure driveshaft
against falling down and note permissible bending angle of driveshaft
Notes page 39
-73
. - Tie up driveshaft at mount for parking brake cable using wire.
- Support final drive using VAG1383A engine/transmission hoist.

- Remove bolts (arrows) at front crossmember for rear final drive.
- Remove front crossmember.
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- Lower final drive approx. 10 cm.

Note:
The 4. bolt is not visible in the illustration. - Remove 4 bolts for torque tube 1 to 3.

- Pull off flange shaft with torque tube.
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Installing

Installation is reverse of removal, noting the
following:

Notes:

After removing driveshaft, always remove any
remaining locking fluid from thread holes in the
transmission drive flanges and the rear final
drive. Otherwise there is a possibility that the
new bolts may get jammed when installed and
shear when removed.
Cleaning can be performed with a tap.
Always replace seal between drive flange and
driveshaft (remove protective film and attach
seal to drive flange). Adhesive surface must be
free of grease.
Replace driveshaft bolts (self-locking).

- Determine radial run-out at flange/driveshaft if a
factory marking is present at the driveshaft
page 39
-86
and adjust color marking at
driveshaft to new marking at flange.
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- Install exhaust system free of stress:

Repair Manual, Engine Mechanical, Repair
Group 26; removing and installing exhaust
system
- Top-up and check gear oil in rear final drive
page 39
-94
.

Tightening torques

Component
Nm
Torque tube to rear final drive 35
Driveshaft to final drive
(Input flange) 55
Front crossmember for rear final drive to
body 40
Front crossmember for rear final drive with
exhaust system bracket to body 23
Oil filler plug 35
Nuts for clamping sleeve 40
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