Variable Valve Timing Cover / Housing: Service and Repair

Control Housing for Camshaft Adjustment

Removing

• Camshafts and crankshaft must not be rotated when timing drive is disassembled.

• The camshaft bar (T10068) serves exclusively to lock the camshaft at TDC. To counter-hold, an open-end wrench 32 mm must be set on the hex of the camshaft.

• Engine removed.

• Engine separated from transmission.

- Remove timing chains for camshafts => [ Timing Chains for Camshaft Drive ] Timing Chains For Camshaft Drive.

- To loosen the bolt for camshaft adjuster counter-hold at hex - arrow - of camshaft with a 32 mm open-end wrench.





- Remove camshaft adjuster.

- Remove bolts - arrows - and remove control housing for camshaft adjustment.





Installing

Installation is in reverse order of removal, note the following.

- Clean strainer - arrows - on the backside of the control housing for camshaft adjustment.





- Lightly oil the contact surface for piston rings in control housing for camshaft adjustment.

• When installing control housing for camshaft adjustment, make sure that the piston rings are not damaged on the camshafts.

• The piston ring gaps must be offset by 120°.

- Place control housing for camshaft adjustment onto the camshaft.

- Fasten bolts - arrows - in a diagonal sequence.





- Install camshaft adjusters => [ Installing ] Service and Repair.

- Install timing chains for camshafts => [ Timing Chains for Camshaft Drive ] Timing Chains For Camshaft Drive.

Tightening Specifications





* Insert using locking compound; locking compound.