AUDI A4 2000 B5 / 1.G 01W Transmission Drive Flange Seal Workshop Manual

39-1


Drive flange seal, replacing

Transmission installed

- Observe general repair instructions Page 00
-
10
.

Special tools and equipment

VW195 arbor
VW295 needle bearing drift
VW681 extractor lever
VAG1306 drip tray

Notes:
The following illustration shows removal and
installation of the left seal.
The same procedure is used for the left and
right seals.
The exhaust system need not be removed.
Pa
ge 1 of 7 Drive flan
ge seal, re
placin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM01.39.1

Flanges with and without polygon bearings are
used. Application Page 00
-3 .
Pa
ge 2 of 7 Drive flan
ge seal, re
placin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM01.39.1

39-2

Removing

- Remove heat shield for drive axle.

- Remove drive axle from transmission drive
flange.

Repair Manual, Suspension, Wheels,
Steering, Repair Group 40


- Turn steering as far to left as possible.

- Tie up drive axle as high as possible. Do not
damage paint on drive axle.

- Place VAG1306 drip tray under transmission.

Note:
The drive flange must be removed evenly and parallel. If pressure is only
applied to one side, the differential may break. - Have second technician hold two tire irons -2- under drive flange.
- To remove drive flange, install two bolts -1- evenly into two opposite
bores in drive flange.
Pa
ge 3 of 7 Drive flan
ge seal, re
placin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM01.39.1

39-3


- Always replace circlip for drive flange.
- Clamp drive flange into vise using protective jaws. Press circlip out of
groove in drive flange by pressing in new circlip -A-.
- Remove drive flange seal using VW681 extractor lever.
Pa
ge 4 of 7 Drive flan
ge seal, re
placin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM01.39.1

39-4


Setup of drive flange with polygon bearing
Notes: 1 - Drive flange
2 - Needle bearing (polygon bearing)
3 - Spacer ring
4 - Circlip
5 - Spacer ring (is installed additionally if spline diameter is 30 mm)
The rough operation of the polygon bearing with the drive flange not
installed is not an indication that the bearings are malfunctioning. An
acoustic check can only be carried out while installed. Watch for damage to the polygon bearings (e.g. cracks in bearing
outer ring). Polygon bearings can only be replaced together with drive flange.A spacer ring -5- is installed between the polygon bearing and
differential pinion for drive flanges with a spline diameter of 30 mm
(1.2 in.).
Pa
ge 5 of 7 Drive flan
ge seal, re
placin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM01.39.1

39-5

Installing

- Lubricate area between sealing lip and dust lip
with a thin layer of multi-purpose grease.

- Lightly oil outer circumference of seal.

Note:
If reinstalling an old drive flange, the seal must be pressed in
approximately 6.5 mm (0.256 in.) so that the new seal does not sit on the
running surface of the old seal. - Drive in new right-hand drive flange seal 5.5 mm (0.217 in.) below
transmission housing surface, without canting.

Note:
If reinstalling an old drive flange, the seal must be pressed in
approximately 6.5 mm (0.256 in.) so that the new seal does not sit on the
running surface of the old seal. - Drive in new left-hand drive flange seal 5.5 mm (0.217 in.) below
transmission cover surface, using VW195 arbor, without canting.
- Drive in drive flange using VW295 needle bearing drift.
- Bolt drive axle to drive flange.
Pa
ge 6 of 7 Drive flan
ge seal, re
placin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM01.39.1

39-6

- Install heat shield for drive axle.

- Check transmission oil level Page 34
-36
.

Tightening torques

Component

Tightening
torque
Drive axle to drive
flange M8 40 Nm (30 ft lb)

M10 77 Nm (57 ft lb)
Heat shield for drive axle 23 Nm (17 ft lb)
Pa
ge 7 of 7 Drive flan
ge seal, re
placin
g
11/19/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.TM01.39.1