Removing the Cylinder Head

Removing the cylinder head

Special tools:
999 5199 COUNTERHOLD 999 5199 Counterhold
999 5452 CAMSHAFT ADJUSTMENT TOOL 999 5452 Camshaft Adjustment Tool
999 5454 PRESS TOOL 999 5454 Press Tool
999 5670 Pliers 999 5670 Pliers

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information in the illustrations is always correct.

Removing the camshaft pulleys





Install tool 999 5452 CAMSHAFT ADJUSTMENT TOOL 999 5452 Camshaft Adjustment Tool on the rear edge of the camshafts.
Slacken off the screws securing the timing gear pulley to the variable valve timing unit.
Remove the plug at the front edge of the variable valve timing unit (Tx 55).
Remove the centre screw from the variable valve timing unit (Tx 55).
Carefully pull out the camshaft pulley with the variable valve timing unit.

The following applies to camshafts without variable valve timing:
Remove the screws.
Pull off the camshaft pulley.
Remove tool 999 5452

Caution! The camshafts must not be turned when the timing belt has been removed.

Removing the camshaft cover





Remove the control valve from the variable valve timing unit.
Remove the spark plugs from cylinders 1 and 5.
Install 2 tools 999 5454 PRESS TOOL 999 5454 Press Tool , leaving a 2-3 mm gap to the camshaft cover.
Ensure that the screw in the spark plug well is tightened as far as it will go.
Remove all the screws securing the camshaft cover to the cylinder head





Remove
- the camshaft cover with pliers 999 5670 Pliers 999 5670 Pliers by the snap-in lugs.
Start with cylinder 1 and work alternately backward
- the wing nuts approximately 2 turns. Repeat the procedure with the pliers.

Remove
- tool 999 5454
- the camshaft seals at both the front and rear edges
- the camshaft cover
- the camshafts. Work loose and lift at the same time.

Note! Take care not to damage the axial bearings.

Removing the cylinder head





Remove the pipe screw for the water heated crankcase ventilation at the rear edge of the cylinder head.
Slacken off the screwed joint for the cylinder head. Start at the sides and work alternately towards the centre.
Lift out the cylinder head.

Note! Take care not to damage the mating surfaces.