AUDI A4 1998 B5 / 1.G 01V Transmission Drive Shaft Service Workshop Manual

39-73


Driveshaft, servicing

Important notes


A distinction is made between two
driveshafts:

Driveshaft made of steel
Driveshaft made of carbon fiber
Only carbon fiber driveshafts were installed up to
November 1997.
Only steel driveshafts were installed from
November 1997.

If the driveshaft is replaced, make sure a
driveshaft with the same part number is
installed. A carbon fiber driveshaft must not
be replaced by a steel driveshaft and vice
versa !
Pa
ge 1 of 23 Driveshaft, 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.AT01.39.5

39-74

Specific notes for carbon fiber driveshafts:

WARNING!

Driveshaft made of carbon fiber

do not impact / do not hi
t

do not drop

If the surface is damaged, driveshaft must be
replaced

Do not bend the driveshaft, maximum
permissible bending angle is 25 . Otherwise
the universal joint may be damaged.

Only store and move driveshaft fully
extended.
Pa
ge 2 of 23 Driveshaft, 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.AT01.39.5

39-75

Notes for all driveshafts:

General repair notes page 00
-27
.

Do not bend the driveshaft, maximum
permissible bending angle is 25 . Otherwise
the universal joint may be damaged.

Only store and move driveshaft fully
extended.
No repair work can be performed on the
driveshaft with the exception of removing and
installing and adjustment work.
If the driveshaft is only detached at the
transmission or from rear final drive, it must be
tied up or supported at the constant velocity joints.
Before removing, mark position from joint to
flange. Reinstall in identical position otherwise
imbalance will be too high which could result in
damage to the bearing or in vibration noises.
If there are complaints (noises, vibrations) it is
essential to check whether correct adjustment
of the driveshaft eliminates the symptoms
before the driveshaft is replaced.
Pa
ge 3 of 23 Driveshaft, 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.AT01.39.5

After disconnecting driveshaft from rear final
drive, an additional balance washer (thick
washer) that may be located between shim and
bolt head may not be reinstalled.
Pa
ge 4 of 23 Driveshaft, 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.AT01.39.5

39-76


1 -
Rear final drive
2 -
Gasket
Always replaceRemove protective film and attach self-
locking side of gasket to drive flange. Degrease drive flange
3 -
Constant velocity joint Maximum permissible bending angle 8
4 -
Backing plate
5 -
Socket head bolt - 55 Nm
Self-lockingAlways replaceAlways clean threaded holes for drive
flange bolts (e.g. with thread cutter)
Pa
ge 5 of 23 Driveshaft, 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.AT01.39.5

39-77


6 -
Universal joint
Maximum permissible bending angle 25
7 -
Adjustment shim
Determine thickness page 39
-90
8 -
Hex-bolt - 23 Nm
9 -
Center driveshaft bearing
10 -
Driveshaft
Adjusting page 39
-88
11 -
Socket head bolt - 55 Nm
Self-lockingAlways replaceAlways clean threaded holes for drive
flange bolts (e.g. with thread cutter)
Pa
ge 6 of 23 Driveshaft, 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.AT01.39.5

39-78


12 -
Backing plate
13 -
Constant velocity joint
Maximum permissible bending angle 8
14 -
Gasket
Always replaceRemove protective film and attach self-
locking side of gasket to drive flange. Degrease drive flange
15 -
Transmission
Pa
ge 7 of 23 Driveshaft, 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.AT01.39.5

39-79

Driveshaft, removing and installing


Special tools and equipment

Removing
Repair Manual, Engine Mechanical, Repair Group 26; removing and
installing exhaust system
Repair Manual, Engine Mechanical, Repair Group 26; removing and
installing exhaust system
3405 alignment fixture
- Observe important notes page 39
-73
- Remove crossmember below exhaust system if installed.
- Remove front exhaust pipes:- Remove rear part of exhaust system starting at clamp to gain access to
the driveshaft:
Pa
ge 8 of 23 Driveshaft, 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.AT01.39.5

39-80

- Remove heat shields above driveshaft.

- Unbolt heat shield for driveshaft from cover for Torsen differential
(arrows).

Note:
Only mark location, if same driveshaft is going to be reinstalled. - Check whether there is a factory marking (colored dot -arrows-) on
driveshaft and at flange/driveshaft at rear final drive. If not, mark
location of driveshaft flange -A- to rear final drive -B- with color.
Pa
ge 9 of 23 Driveshaft, 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.AT01.39.5

39-81

- Remove mounting bolts for both driveshaft
flanges.

- Remove upper three mounting bolts for each
driveshaft constant velocity joint.

- Back off mounting bolts for center support
slightly.

Only for carbon fiber driveshafts:

Spacer pieces are attached to 3405 alignment fixture via a chain.
Arrow -A- points in direction of travel.
WARNING!
Assembly tool must rest on both steel rings -1- before tightening
plastic nut -A-. If that is not the case, the surface of the carbon fiber
driveshaft can be damaged and must be replaced see Important
notes Page 39
-74
- Place spacer pieces -2- onto 3405 alignment fixture (distance
dimension = 10 mm).
- Using spacer pieces -2-, hook in 3405 alignment fixture according to
illustration.
Pa
ge 10 of 23 Driveshaft, 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.AT01.39.5