1999 AUDI A6 belt

13-8

Ribbed belt, removing and installing


Lock carrier in service position page 13
-1

CAUTION!

Before removing ribbed belt, note direction of
rotation with chalk or felt-tip marker.
Reversing the direction of rotation of a used
belt can destroy the belt. When installing the
ribbed belt, make sure it is seated correctly
on the pulley.

Removing

- Remove engine cover (arrows).

- Remove noise insulation panel (arrows).
Pa
ge 7 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2

13-9


Note:
Observe previously marked direction of rotation of belt and that it is
seated correctly on the pulley. - Counterhold pulley for viscous fan using 3212 spanner wrench and
remove viscous fan using 3312 open-end spanner (left thread).
- Carefully lift out viscous fan.

- To loosen ribbed belt, turn tensioner clockwise using 17 mm box
wrench until two holes are aligned (arrows). Counterhold in position
using 3204 drift.
- Remove ribbed belt.
Pa
ge 8 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2

13-10

Installing

Note:
Observe previously marked direction of rotation of belt and that it is
seated correctly on the pulley.
Routing of ribbed belt: - First install ribbed belt onto crankshaft pulley and idler wheel. Push belt
onto tensioning roller last.
D1 - without air conditioning
D2 - with air conditioning
- Remove 3204 drift.
- Install engine cover.Tightening torque for viscous fan
Tightening
torque
1331 torque wrench and 3312 open-end spanner 37 Nm (27 ft lb)
1331 torque wrench without 3312 open-end
spanner 70 Nm (52 ft lb)
Pa
ge 9 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2

13-11

Vibration damper, removing and
installing


Lock carrier in service position page 13
-1
Ribbed belt, removing and installing page 13
-
8 .

Note:
To remove the vibration damper, it is not
necessary to remove the center bolt.

- Remove vibration damper.

- When installing, make sure notches (arrows) in vibration damper are
aligned with locating lugs on toothed belt sprocket.
Tightening torque (vibration damper to crankshaft): 20 Nm (15 ft lb)
Pa
ge 10 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2

13-12

Toothed belt, removing and installing


Removing

- Remove engine cover.

Ribbed belt, removing and installing page 13
-8 . - Remove noise insulation panel (arrows).
Lock carrier in service position page 13
-1
- Unclip toothed belt guard on both sides and remove.
Pa
ge 11 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2

13-13


- Turn crankshaft at central bolt of toothed belt gear in direction of
engine rotation to cyl. 1 TDC. Timing marks -A- and -B- must be
aligned.

WARNING!
DO NOT turn crankshaft while checking for TDC mark. Personal
injury may result. - Check position of camshafts. Large holes (arrow) of securing plates on
camshaft sprockets must face toward inside and align.
If not, turn crankshaft one revolution further.
- Remove sealing plug from left-side of cylinder block.
- Top Dead Center (TDC) mark on crankshaft must be visible or be felt
behind bore of removed sealing plug.
Pa
ge 12 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2

13-14


CAUTION!
Before removing ribbed belt, note direction of rotation with chalk or
felt-tip marker. Reversing the direction of rotation of a used belt can
destroy the belt. When installing the ribbed belt, make sure it is
seated correctly on the pulley.
Notes: - Install 3242 crankshaft holder into sealing plug opening.
- Remove tensioner for ribbed belt.
- Remove center and right toothed belt guards.
The toothed belt tensioner is oil dampened. Compress it by slowly
applying constant pressure. Use spring clamp from 2024A.

- Using 8 mm hex wrench, turn toothed belt tensioning roller -1- counter-
clockwise, opposite direction shown (arrow), until tensioning lever -2-
compresses tensioner -3- so that spring clamp (2 mm dia.) can be
inserted into bore and lifter.
Pa
ge 13 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2

13-15

- Insert pin and release tension.

- Remove vibration damper page 13
-11
.

Installing - Remove idler wheel for ribbed belt (arrows).
- Remove toothed belt.

- Install 3391 camshaft locator bar onto camshaft locking plates.
- Loosen both bolts for camshafts and back out bolts approx. 5 turns.
- Remove 3391 camshaft locator bar.
Pa
ge 14 of 33 C
ylinder block, crankshaft and fl
ywheel, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.13.2