Overview - Timing Mechanism Drive Chain

Fig 1: Timing Mechanism Drive Chain Exploded View

Courtesy of AUDI OF AMERICA, LLC

Guide Rail
Bolt
- 17 Nm + 90°
- Always replace
Bolt
- Tightening specification -Item 5- OVERVIEW - CAMSHAFT TIMING CHAINS.
Bolts
- Tightening specification -Item 13- OVERVIEW - CAMSHAFT TIMING CHAINS.
Mounting Pin
- Left camshaft timing chain drive sprocket
Drive Chain Sprocket
- For the left camshaft control chain
Bolt
- Tightening specification -Item 10- OVERVIEW - CAMSHAFT TIMING CHAINS.
Bearing Plate
- Left camshaft timing chain drive sprocket
- Asymmetrical version
Drive Chain
- For timing mechanism
- Before removing, mark the direction of rotation with paint
- Removing and installing. Refer to TIMING MECHANISM DRIVE CHAIN, REMOVING AND INSTALLING .
Guide Rail
Bolt
- 17 Nm + 90°
- Always replace
Thrust Washer
- Asymmetrical version
- Installed position. Refer to 12
Drive Chain Sprocket
- For the right camshaft timing chain
Mounting Pin
- For the right camshaft timing chain drive sprocket
- Asymmetrical version
- Installed position. Refer to 12
Seal
- Always replace
Chain Tensioner
Bolt
- 5 Nm + 90°
- Always replace
Crankshaft