Overview - Camshaft Timing Chains

Fig 1: Camshaft Timing Chain Assembly Exploded View

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 9 Nm
Chain Tensioner
- Is under tension
- Remove the Locking Pin - T40011- before removing
Timing Chain Tensioning Rail
Guide Pin
- 20 Nm
Bolt
- 9 Nm
Control Valve
- 35 Nm
- Left-hand thread
- Depending on the version, remove with either the Central Valve Assembly Tool - T10352- or Central Valve Assembly Tool - T10352/1A-
Bolt
- Tightening Specifications and Sequence. Refer to Bearing Bracket - Tightening Specification and Sequence .
- Always replace after removing
Washer
Bearing Bracket
- Removing and installing. Refer to Bearing Bracket, Removing and Installing
Camshaft Timing Chain Guide Rail
Camshaft Housing
Camshaft Timing Chain
- Before removing, mark the running direction with paint
- Removing and installing. Refer to Camshaft Timing Chain, Removing and Installing
Camshaft Timing Chain Guide Rail
Guide Pin
- 20 Nm
Three Stage Chain Sprocket
- Crankshaft
- Installation position. Refer to Three Stage Chain Sprocket - Installed Position .