Timing Chain: Service and Repair

Camshaft Adjuster / Camshaft Drive Chain

Special tools, testers and auxiliary items required
• Socket (T40080)
• Camshaft Clamp (T10252)
• Toothed Belt Tensioner (T10020)
• Locking Pin (T10115)
• Torque Wrench (40-200 Nm) (V.A.G 1332)

Removing

- Remove the high pressure fuel pump. Refer to => [ High Pressure Fuel Pump ] High Pressure Fuel Pump.
- Remove the cylinder head cover. Refer to => [ Cylinder Head Cover ] Service and Repair.





- Disconnect the coolant hoses - 1 and 2 -, remove the bolt - 3 - and disconnect the coolant pipe from the heat shield.





- Remove the wire bracket bolt - arrow -.





- Remove the housing bolts- arrows -.





- Bring the mark on the camshaft gear in alignment with the mark on the toothed belt guard. The recesses on the camshafts - arrows - now point to each other vertically.





- Install (T10252) as shown and secure using the bolts - arrows -.
- Loosen the camshaft adjuster bolts using (T40080).





- Compress the chain tensioner - arrow A - and secure it using (T10115) - arrow B -.
- Remove the camshaft adjuster bolt and remove the adjuster with the chain.

Installing

Requirements:
• Camshafts are secured using (T10252).





- Place the chain onto the camshaft adjuster.





- Hold the camshaft adjuster in front of the exhaust camshaft so that the notch - A - and pin - B - align.





- Place the chain in this position onto the chain sprocket of the intake camshaft, first at the top - arrow -.





- Slowly turn the intake camshaft using (T10020) in the - direction of arrow A - until the camshaft adjuster fits onto the camshaft.

Note:
• If the pin does not fit in the notch: remove the chain and place the chain on again.

- Tighten the camshaft adjuster bolt to 20 Nm + an additional 45° (1/8) turn. To do so, use (T40080).





- Remove the (T10115) - arrow B -.

Further installation is in the reverse order of removal.

- Install the high pressure fuel pump. Refer to => [ High Pressure Fuel Pump ] High Pressure Fuel Pump.