Overview - Camshaft Timing Chains

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Left Camshaft Timing Chain

Fig 1: Overview Of Camshaft Timing Chains

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 80 Nm +90° turn
- Replace
Bolt
- 80 Nm +90° turn
- Replace
Camshaft Chain Sprocket for the Exhaust Camshaft
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
Camshaft Adjuster for Intake Camshaft
- Identification "Intake"
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
  NOTE:
  Depending on the version the camshaft adjuster has three or four notches. The illustration shows a camshaft adjuster with four notches.
Left Camshaft Timing Chain
- Mark the running direction with paint for reinstallation
- Remove from the camshafts. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING AND INSTALLING .
Bolt
- 9 Nm
Glide
Left Camshaft Timing Chain Tensioner
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
Drive Chain Sprocket Bearing Plate
Bolt
- 8 Nm +45° turn
- Replace
Left Camshaft Timing Chain Drive Sprocket
Mounting Pin for the Drive Chain Sprocket
- For the left camshaft control chain
Bolts
- Tightening specification
  Refer to "OVERVIEW - TIMING MECHANISM DRIVE CHAIN" -item 3- Bolt (See Figure).

Right Camshaft Timing Chain

Fig 2: Identifying Right Timing Chain Overview

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 80 Nm +90° turn
- Replace
Camshaft Chain Sprocket for the Exhaust Camshaft
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
Bolt
- 80 Nm +90° turn
- Replace
Camshaft Adjuster for Intake Camshaft
- Identification "Intake"
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
  NOTE:
  Depending on the version the camshaft adjuster has three or four notches. The illustration shows a camshaft adjuster with four notches.
Bolt
- Tightening specification
  Refer to "OVERVIEW - TIMING MECHANISM DRIVE CHAIN" -item 15- Bolt (See Figure).
Mounting Pin for the Drive Chain Sprocket
- For the right camshaft timing chain
- Asymmetrical version
- Installed position. Refer to Figure
Right Camshaft Timing Chain Drive Sprocket
- Installed position. Refer to Figure
Right Camshaft Timing Chain
- Mark the running direction with paint for reinstallation
- Remove from the camshafts. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING AND INSTALLING .
Drive Chain Sprocket Thrust Washer
- For the right camshaft timing chain
- Asymmetrical version
- Installed position. Refer to Figure
Right Camshaft Timing Chain Tensioner
- Removing and installing. Refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .
Glide
Bolt
- 9 Nm