Cylinder Head, Removing

Cylinder head, removing

Special tools:
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





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

Install tool 999 5452 CAMSHAFT ADJUSTMENT TOOL 999 5452 Camshaft Adjustment Tool at the rear 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 center screw from the variable valve timing unit (Tx 55).
Carefully pull out the camshaft pulley with the variable valve timing unit.
Continue with the next variable valve timing unit.

Remove:
- rear timing cover
- tool 999 5452 CAMSHAFT ADJUSTMENT TOOL 999 5452 Camshaft Adjustment Tool.

Removing the camshaft cover





Remove:
- the control valves for the variable valve timing units
- the spark plugs for cylinders 1 and 5.
Install tool 999 5454 PRESS TOOL 999 5454 Press Tool (2 x). Leave 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:
- camshaft cover with pliers 999 5670 Pliers 999 5670 Pliers at the stop lugs. Start with cylinder 1 and work alternately backwards
- the wing nuts approximately 2 turns. Repeat the procedure with the pliers.

Note! Do not damage the axial bearings.

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

Removing the cylinder head





Note! Do not damage the mating surface.

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 center.
Lift out the cylinder head.