Audi Workshop Service and Repair Manuals

Timing chain covers - exploded view

1 -

Bolt

q

Renew

q	Tightening torque and sequence → Fig. „„Timing chain cover (bottom) - tightening torque and tightening sequence““

2 -	Sender wheel

q	For engine speed sender -G28-

3 -

Oil seal

q	For crankshaft (gearbox end)

q	Removing and installing → Chapter

4 -	Timing chain cover (bottom)

q	Removing and installing → Chapter

5 -	Dowel sleeve

6 -

Gasket

q

Renew

7 -

Bolt

q

Renew

q	Tightening torque and sequence → Fig. „„Timing chain covers (top) - tightening torque and tightening sequence““

8 -	Timing chain cover (left-side)

q	Removing and installing → Chapter

9 -

Bolt

q

Renew

q	Tightening torque and sequence → Fig. „„Timing chain covers (top) - tightening torque and tightening sequence““

10 -

Gasket

q

Renew

11 -

Bolt

q

Renew

q	Tightening torque and sequence → Fig. „„Timing chain covers (top) - tightening torque and tightening sequence““

12 -	Timing chain cover (right-side)

q	Removing and installing → Chapter

13 -

Bolt

q

Renew

q	Tightening torque and sequence → Fig. „„Timing chain covers (top) - tightening torque and tightening sequence““

14 -	Dowel sleeve

15 -	Sealing element

q

2x

16 -	Engine speed sender -G28-

q	Removing and installing → Rep. gr.28

17 -

Bolt

q	Tightening torque → Rep. gr.28

Timing chain covers (top) - tightening torque and tightening sequence   Note Renew the bolts tightened with specified tightening angle. –  Tighten bolts in 4 stages in the sequence shown:

Stage	Bolts	Tightening torque/angle specification
1.	-1, 2, 3-	Screw in bolts by hand until they make contact
2.	-4 … 7-	Screw in bolts by hand until they make contact
3.	-1 … 7-	8 Nm
4.	-1 … 7-	8 Nm + turn 90° further

Timing chain cover (bottom) - tightening torque and tightening sequence   Note Renew the bolts tightened with specified tightening angle. –  Tighten bolts in 5 stages as follows: Stages 1 and 2:

Stage	Bolts	Tightening torque
1.		Fit timing chain cover (bottom) on cylinder block with sealant and sealing elements.
2.	-1, 2, 3, 4-	Tighten steel bolts M6x20 to 9 Nm

–  Tighten bolts in 10 stages in the sequence shown.

Stages 3 ... 5:

Stage	Bolts	Tightening torque/angle specification
3.	-1 … 20-	3 Nm
4.	-1 … 20-	3 Nm (procedure specified in order to allow for settling of bottom timing chain cover)
5.	-1 … 20-	turn 90° further