Camshaft Timing Chain Overview

Left Camshaft Timing Chain

Fig 1: Camshaft Timing Chain, Assembly Overview (Left Camshaft Timing Chain)

Courtesy of AUDI OF AMERICA, LLC

1. Camshaft Adjuster for Exhaust Camshaft
   • Identification "Exhaust"
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
2. Bolt
   • 80 Nm plus an additional 90° turn
   • Replace
3. Bolt
   • 80 Nm plus an additional 90° turn
   • Replace
4. Camshaft Adjuster for Intake Camshaft
   • Identification "Intake"
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
5. Left Camshaft Timing Chain
   • Mark the running direction with pain before removing.
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
6. Bolt
   • 5 Nm plus an additional 90° turn
   • Replace
7. Guide Piece
8. Chain Tensioner for Left Camshaft Timing Chain
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
9. Oil Strainer
   • Set into the chain tensioner
   • Observe locating tabs on circumference
10. Gasket
    • Replace
    • Clipped onto the chain tensioner
11. Mounting Bracket for Drive Sprocket
12. Bolt 
    • 5 Nm plus an additional 90° turn
    • Replace
13. Drive Sprocket for Left Camshaft Timing Chain
14. Thrust Washer for Drive Sprocket
15. Bolt 
    • 22 Nm

Right Camshaft Timing Chain

Fig 2: Camshaft Timing Chain, Component Overview -- Right Camshaft Timing Chain

Courtesy of AUDI OF AMERICA, LLC

1. Pivot Pin for Drive Sprocket
   • For right camshaft timing chain
   • Asymmetrical version
   • Installed location, refer to Fig 3
2. Bolt
   • Tightening Specifications: 42 Nm
3. Camshaft Adjuster for Exhaust Camshaft
   • Identification "Exhaust"
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
4. Bolt
   • 80 Nm plus an additional 90° turn
   • Replace
5. Bolt
   • 80 Nm plus an additional 90° turn
   • Replace
6. Camshaft Adjuster for Intake Camshaft
   • Identification "Intake"
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
7. Right Camshaft Timing Chain
   • Mark the running direction with pain before removing.
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
8. Chain Tensioner for Right Camshaft Timing Chain
   • Removal and installation, refer to CAMSHAFT TIMING CHAIN 
9. Guide Piece
10. Oil Strainer
    • Set into the chain tensioner
    • Installation position: Observe locating tabs on circumference
11. Gasket
    • Replace
    • Clipped onto the chain tensioner
12. Bolt
    • 5 Nm plus an additional 90° turn
    • Replace
13. Thrust Washer for Drive Sprocket
14. Drive Sprocket for Right Camshaft Timing Chain

Fig 3: Locating Camshaft Timing Chain Drive Sprocket Mounting Pins

Courtesy of AUDI OF AMERICA, LLC

• Alignment bushings in right camshaft timing chain drive sprocket mounting pins -3- must engage in holes in thrust washer -1- and cylinder block.

2 -

Drive sprocket for right camshaft timing chain

4 -

Bolt