Camshaft Timing Chains Overview

Left Camshaft Timing Chain 

Fig 1: Identifying Camshaft Timing Chains Overview

Courtesy of AUDI OF AMERICA, LLC

1. Bolt
   • 80 Nm + 90° turn
   • Replace
2. Bolt
   • 80 Nm + 90° turn
   • Replace
3. Camshaft Chain Sprocket for the Exhaust Camshaft
   • Removing and installing, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
4. Camshaft Adjuster for Intake Camshaft
   • Identification "Intake"
   • Removing and installing, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
5. Left Camshaft Timing Chain
   • Mark the running direction with paint for reinstallation
   • Remove from the camshafts, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
   • Removing and installing, refer to CAMSHAFT TIMING CHAINS 
6. Bolt
   • 9 Nm
7. Gliding piece
8. Left Camshaft Timing Chain Tensioner
   • Removing and installing, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
9. Drive Chain Sprocket Bearing Plate
10. Bolt
    • 8 Nm + 45° turn
    • Replace
11. Left Camshaft Timing Chain Drive Sprocket
12. Pivot Pin for Drive Sprocket
    • for the left camshaft control chain
13. Bolts
    • Tightening specification, refer to item 3:  3

Right Camshaft Timing Chain 

Fig 2: Identifying Right Timing Chain Overview

Courtesy of AUDI OF AMERICA, LLC

1. Bolt
   • 80 Nm plus an additional 90° turn
   • Replace
2. Camshaft Chain Sprocket for the Exhaust Camshaft
   • Removing and installing, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
3. Bolt
   • 80 Nm plus an additional 90° turn
   • Replace
4. Camshaft Adjuster for Intake Camshaft
   • Identification "Intake"
   • Removing and installing, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
5. Bolt
   • Tightening specification, refer to item 15:  15
6. Pivot Pin for Drive Sprocket
   • For the right camshaft timing chain
   • Asymmetrical version
   • Installed position, refer to Figure
7. Right Camshaft Timing Chain Drive Sprocket
   • Installed position, refer to Figure
8. Right Camshaft Timing Chain
   • Mark the running direction with paint for reinstallation
   • Remove from the camshafts, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
   • Removing and installing, refer to CAMSHAFT TIMING CHAINS 
9. Thrust Washer for Drive Sprocket
   • For the right camshaft timing chain
   • Asymmetrical version
   • Installed position, refer to Figure
10. Right Camshaft Timing Chain Tensioner
    • Removing and installing, refer to CAMSHAFT TIMING CHAINS, REMOVING FROM CAMSHAFTS 
11. Gliding Piece
12. Bolt
    • 9 Nm