Left and Right Timing Chain Covers

Left and Right Timing Chain Covers

Special tools, testers and auxiliary items required

• Hand drill with plastic brush attachment

• Protective eye-wear

• Sealant

Removing

• All cable ties which are opened or cut open when removing, must be replaced in the same position when installing.

- Pull rear engine cover off - arrows -.





Left timing chain cover:

- Remove coolant expansion tank - arrow -.





- Disconnect electrical connection from Engine Coolant Level (ECL) Warning Switch (F66) at bottom of coolant reservoir and set aside coolant reservoir with coolant hoses - 1 - and - 2 - connected.

- Disconnect electrical harness connectors - 1 to 3 -.





- Remove nut - arrow -.

- Remove retainer for connection - 3 -.

- Remove the double-bolt lying beneath.

- Remove retainer for connections - 1 - and - 2 -.

- Remove the bolts - arrows - and separate the electrical connections at the ignition coils.





• Ignore items - 1 to 4 -.

- Free up electrical wiring.

- Remove the bolts - 1 through 8 - and then remove the left cover for the timing chain from the bond.





Right timing chain cover:

- Disconnect check valve - 1 - from connection at air duct hose.





- Remove the air duct hose, thereby loosening the hose clamp - 2 - and opening the clips - arrows -.

- Separate the electrical connector - 1 -.





- Remove bolt - arrow - and remove retainer for connection.

- Remove the bolts - 1 through 8 - and then remove the right cover for the timing chain from the bond.





Installing

• During installation, all cable ties must be re-installed at the same location.

CAUTION!
Wear safety glasses.

- Using for example a rotating plastic brush, remove sealant residue on covers for timing chain and on cylinder block and head.





CAUTION!
Make sure that no sealant residue enters the engine.

- Clean sealing surfaces so they are completely free of any oil or grease.

• Note the expiration date of the sealing compound.

- Cut tube nozzle at front marking (jet dia. approximately 1 mm).





• Covers for timing chain must be installed within 5 minutes after applying sealant.





- Apply sealant bead - arrow -, as shown in illustration, on clean sealing surfaces of left cover for timing chain.

• The groove of sealing surface must be completely filled with sealant.

• The sealant bead must stand 1.5 to 2.0 mm above the sealing surface.

- Position left timing chain cover and tighten bolts in sequence - 1 to 8 -.





- Apply sealant bead - arrow -, as shown in illustration, on clean sealing surfaces of right cover for timing chain.





• The groove of sealing surface must be completely filled with sealant.

• The sealant bead must stand 1.5 to 2.0 mm above the sealing surface.

- Position right timing chain cover and tighten bolts in sequence - 1 to 8 -.





Further installation is in reverse order of removal.

Tightening Specifications