Removing

WM 153321 Removing chain case lid





Preliminary work

Preliminary work

1. Remove engine.
2. Separate engine from transmission and suspend it on the assembly support using engine support 9676.
3. Drain off engine oil and dispose of it in accordance with the applicable national laws.





Draining engine oil

4. Remove cover for camshaft housing.
5. Loosen (do not remove) the three fastening screws on the water pump pulley.





Fastening screws on water pump pulley

6. Remove engine carrier. To do this, release the four fastening screws on the engine mounts.





Fastening screws on engine mounts

7. Relieve and remove drive belt.





Drive belt

Information

Component overview





Installation location





Component overview

1 - Radial shaft seal; align using the plastic sleeve provided
2 - Top fastening screw (M6 x 50)
3 - Bottom fastening screw (M6 x 12)
4 - Chain tensioner

Removing chain case lid

Removing chain case lid

Information:
The description only explains how to remove the chain case lid. The removal of other components is described in the corresponding chapters.

1. Remove the belt tensioner. To do this, loosen the fastening screws -4 and 5- on the carrier and on the underside of the shock absorber.





Drive belt - overview

2. Remove the deflector wheel at cylinder row 1-4. To do this, lever off the lid and unscrew the fastening screw.





Deflector wheel at cylinder row 1-4

3. Remove water pump belt pulley.

Information:
To ensure that the used fastening screw of the crankshaft belt pulley is not used again, mark it with a felt-tip pen.

4. Remove crankshaft belt pulley.





Crankshaft belt pulley

5. Remove bracket for oil/water heat exchanger.





Fastening screws for bracket for oil/water heat exchanger

6. Remove cable duct at cylinder row 1-4.





Cable duct

7. Disconnect coolant line to the generator.





Coolant lines to generator

8. Remove chain tensioner.





Installation position of chain tensioner

9. Remove oil dipstick.
10. Remove crankshaft sealing ring on timing case cover. To do this, loosen the four fastening screws.





Fastening screws for crankshaft sealing ring

Notice:
Timing-case cover removed incorrectly
Risk of damage to seal between oil pan and crankcase
Risk of engine leaks

- Always reseal the oil pan when removing the timing-case cover.

11. Remove timing-case cover. To do this, loosen all the fastening screws in reverse order (beginning with position 28).





Tightening sequence for fastening screws on timing-case cover

12. Remove oil pan.