Overview - Camshaft Timing Chains: Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2020 Audi S4, 2020 Audi A4, 2019 Audi S4, 2019 Audi A4, and 2018 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If work is performed on the chain drive, perform the "01 - mechanical engine, functions" listed adaptation. Refer to Vehicle Diagnostic Tester.
- Chain Tensioner
- Is under tension
- Secure using the Tensioner Locking Tool:T40267 before removing
- Bolt
- 4 Nm + 90°
- Always replace after removing.
- Guide Pin
- 20 Nm
- Bolt
- Tightening sequence. Refer to Figure.
- Always 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 perform the "01 - mechanical engine, functions" listed adaptation. Refer to Vehicle Diagnostic Tester.
- Guide Rail
- For the camshaft timing chain
- Guide Pin
- 20 Nm
- Three Stage Chain Sprocket
- Installation position. Refer to Figure.
- Tensioning Rail
- For the camshaft timing chain