Timing belt 244 GLE Auto

There's also the renowned "rope trick": Remove a spark plug, rotate the crank until the piston is a bit before TDC, and insert a length of soft rope through the plug hole with an end sticking out. When you hit the crank shaft bolt, the rope will stop the piston from reaching TDC and the crank will refuse to rotate. Particularly useful for cars with automatic transmission. The usual disclaimer.

yes, my B21 has the allen headed bolts on the pulley too. If you just undo these it will come off. The centre bolt isn't holding the pulley on just the sprocket behind me thinks