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View from the flywheel side
3. Check basic camshaft adjustment of cylinder bank 1 -3 . Ensure that the groove in the camshaft faces outward toward the cylinder head cover.
4. If the position of the camshafts is incorrect or the groove in the inlet camshaft does not face outward, remove fixing pin of belt pulley and turn
crankshaft a further 360° clockwise. Then position or fix the fixing pin in the bore (1 OT) and the fixing bore in the crankcase again.
5. Check the position of the groove again.
6. Remove ignition coils and spark plugs.
7. Pull off oil protection tubes.
Diagram shows lower closure cap
8. Pull off closure caps (2 ea.) of cylinder head 1 - 3 - pulley side.
9. Fit special tool, holding-down device 9634, on the cylinder head. Fasten holding-down device with a hexagon-head bolt M8 x 3.
Note:
In order to prevent damage to the camshafts or saddle bearings, it is essential to fit the holding-down device before detaching the cylinder
head cover.
10. Separate plug connection of the tensioning element (VarioCam).
11. Unscrew two hexagon,-head bolts (M6 x 20) and remove closure cap from the tensioning element (VarioCam).
12. Undo the fastening screws of the oil extraction pump.
This is a source reference. Confirm exact model applicability in the original material.