Overview - Camshaft Timing Chains: Notes

Fig 1: Exploded View Of Camshaft Timing Chains

Courtesy of AUDI OF AMERICA, LLC

Chain Tensioner
- Is under tension
- Secure using the :T40267 before removing
Bolt
- 4 Nm + 90°
- Replace after removing.
Guide Pin
- 20 Nm
Bolt
- Tightening sequence. Refer to BEARING BRACKET - TIGHTENING SPECIFICATIONS AND SEQUENCE .
- Replace after removing.
Adapter Sleeve
- Depending on the version, not present on every bearing bracket
Control Valve
- 35 Nm
- Left-hand thread
Control Valve
- 35 Nm
- Left-hand thread
Bearing Bracket
- Removing and installing. Refer to BEARING BRACKET, REMOVING AND INSTALLING .
Cylinder Head Cover
Bolt
- 9 Nm
Guide Rail
- For the camshaft timing chain
Camshaft Timing Chain
- Mark the running direction with paint for reinstallation
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING AND INSTALLING .
- After working on the chain drive adapt the chain length. Refer to Vehicle Diagnostic Tester.
Guide Rail
- For the camshaft timing chain
Guide Pin
- 20 Nm
Three Stage Chain Sprocket
- Installation position. Refer to THREE STAGE CHAIN SPROCKET - INSTALLED POSITION .
Tensioning Rail
- For the camshaft timing chain