cw:

1) Removing the dampener and pulley will not/can not affect either the valve timing or the ignition timing.
2) Examine the bell housing for a place to insert a wedge/large screwdriver to lock the ring gear from rotating.
3) Remove center bolt in pulley/dampener.

Inside the bore of the dampener hub there may be internal threads, into which a specific puller would be screwed to remove the hub from the crankshaft. If not, the hub may slide off, though admittedly, a slip fit is not the MB way. In any event, remove the bolt, and see what can be pried off, or falls off. To use the Brit's expression, "Suck it, and see!"