Dismantling and assembling centre differential housing — AUDI

Audi
Audi A4
2001
Audi A4 Cabriolet
2003
Audi A6
2005
Power transmission
Servicing 6-speed manual gearbox 0A3, four-wheel drive
Edition
02.2012
Dismantling and assembling centre differential housing
Special tools and workshop equipment required
Thrust plate
VW 401
Thrust plate
VW 402
Press tool
VW 408 A
Press tool
VW 412
Press tool
VW 454
Press tool
VW 554
Punch
2005
Thrust piece
2050
Drift sleeve
30 - 100
Thrust piece
T40106
Shim
016 311 391 A
Locking fluid
AMV 185 101 A1
Sealing grease
G 052 128 A1
Extractor tool
T20143
Thrust piece
T40106
Note
Due to the introduction of an oil seal with additional dust lip (from serial no. 42987)
Fig.
, the flange shaft
Item
was fitted with a groove. Select correct components from
Electronic parts catalogue
.
Flange shaft
Pressing out
Fig.
or
Fig.
Pressing in
Fig.
Modification: from serial no. 42987 with groove
Fig.
Select correct components from
Electronic parts catalogue
Bolt
20 Nm + 90°
For vibration damper
3x
Self-locking
Renew
Vibration damper
Not fitted on all versions
Oil seal
Removing
Fig.
Installation up to serial no. 42986
Fig.
Modification: with additional dust lip from serial no. 42987 onwards
Fig.
Installation from serial no. 42987 onwards
Fig.
Centre differential housing
Removing and installing (with gearbox removed)
Chapter
Removing and installing is also possible with gearbox installed in vehicle
6-speed manual gearbox 0A3, four-wheel drive
Rep. gr.
34
Ball bearing
For flange shaft
Pressing out
Fig.
Pressing in
Fig.
Circlip
Pressing out flange shaft (centre differential housing with vibration damper)
Remove circlip before pressing out flange shaft.
Set up centre differential housing so that flange shaft does not make contact with press plate
arrows
when it is pressed out.
Pressing out flange shaft (centre differential housing without vibration damper)
Remove circlip before pressing out flange shaft.
Pressing in flange shaft
Secure vibration damper before pressing in flange shaft.
Note
Fit a flange shaft with a groove
Fig.
if an oil seal with additional dust lip
Fig.
is installed. Select correct components from
Electronic parts catalogue
.
Fit circlip.
From serial no. 42987 onwards: flange shaft with groove
arrow A
and oil seal with additional dust lip
arrow B
Note
An oil seal with additional dust lip
arrow B
must be fitted in conjunction with a flange shaft which has a groove
arrow A
.
Levering out oil seal
Identification of oil seals
A
Oil seal up to serial no. 42986 - without additional dust lip
arrow 1
B
Oil seal - from serial No. 42987 onwards - with additional dust lip
arrow 2
.
Installing oil seal - up to serial no. 42986
A
Shim
016 311 391 A
(1.4 mm thick)
B
Oil seal
Place shim and oil seal on tool as shown.
Installation position: open side of oil seal points towards centre differential housing.
Lightly oil outer circumference of new oil seal.
Knock in new flange shaft oil seal as far as stop; keep seal straight when installing.
Pack space between sealing lip and dust lip half-full with
sealing grease
G 052 128 A1
.
Remove tool and shim.
Installing oil seal - from serial no. 42987 onwards - with additional dust lip
Installation position: open side of oil seal points towards centre differential housing.
Lightly oil outer circumference of new oil seal.
Knock in new flange shaft oil seal as far as stop; keep seal straight when installing.
Pack space between sealing lip and dust lip half-full with
sealing grease
G 052 128 A1
.
Pressing out ball bearing for flange shaft
Pressing in ball bearing for flange shaft