1996 AUDI A4 belt

13-42

- Mark direction of rotation of belt with chalk or felt
pen.

- Set crankshaft to markings for TDC of No. 1 cylinder by turning central
bolt on crankshaft sprocket in direction of rotation -arrows-.

- Unbolt vibration damper.
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13-43


- Unbolt lower and center section of toothed belt guard -arrows-.

- Attach socket head fastener T10092 into the tensioner for toothed belt.
- Only tension pressure piston of tensioner until pressure piston is
secured with pin T40011.
- Take off toothed belt.
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13-44

Installing (adjusting valve timing)

Note:

The position of the toothed belt must be set as
described below, even after repairs in which the
belt is only taken off the camshaft sprocket.
When turning the camshaft, the crankshaft must
not be at TDC at any cylinder. There is a
danger of damage to valves/piston crown.

- Align marking on camshaft sprocket with marking at cylinder head
cover.
- Place toothed belt on crankshaft sprocket (observe direction of
rotation).
- Install toothed belt guard - lower part.
- Secure vibration damper/belt pulley with one bolt (note installation
arrangement).
- Set crankshaft to TDC for cylinder No. 1.
- Install toothed belt onto coolant pump, then tensioning roller, and finally
camshaft sprocket.
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13-45


- Unscrew socket head fastener T10092.
- Pull out pin T40011 from tensioner.

The pressure piston of the tensioner for the toothed belt loosens.

- Turn crankshaft two full turns in direction of rotation (by turning central
bolt on crankshaft sprocket) and check that camshaft and crankshaft
marks align with their reference points.
- Install vibration damper/belt pulley.
- Install toothed belt guard (center and top sections).
- Install viscous fan Page 13
-21
.
- Install ribbed belt and tensioner for ribbed belt Page 13
-20
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13-46

Tightening torques

Component

Nm
Lower section of toothed belt guard to
cylinder block
10
1)
Center section of toothed belt guard
to cylinder block
10 1)
Vibration damper/belt pulley to
crankshaft
10 + 90
2)3)

Ribbed belt tensioner to bracket
23

1) Install with locking fluid D 000 600 A2
2) Replace bolts
3) 90 corresponds to a quarter turn
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