S4 V8-4.2L (BHF) (2004)
![background image](/audi/s4/v8-4.2l_(bhf)/Page-1269001.png)
Timing Chain: Service and Repair
Drive Chain For Timing Mechanism, Component Overview
Drive chain for timing mechanism, component overview
Note: Before removing timing chain, mark direction of travel in color. Reversing the direction of rotation of a run-in chain can destroy the chain.
1 - Pivot pin for drive sprocket
2 - Washer
3 - 42 Nm
4 - Pivot pin, 10 Nm
5 - 5 Nm plus 1/4 turn (90°)
^
Replace
6 - Thrust washer for drive sprocket
7 - Drive sprocket for left timing chain
8 - Pivot pin, 10 Nm
9 - Drive chain for timing mechanism
10 - Guide rail
11 - Pivot pin, 10 Nm
12 - 10 Nm
13 - Mounting bracket for drive sprocket
14 - O-ring
^
Replace
15 - Thrust washer
16 - Drive sprocket for right timing chain
17 - Pivot pin, 10 Nm
18 - O-ring
^
Replace
19 - Chain tensioner
20 - 10 Nm