Belt change for the M156

[@eturk1]

my friend, you have to press with the key from the left side or you will hardly remove the tension pulley.

[@cohso1752]

Looks like the Radiator has to be emptied and removed unless you do the job on a lift for a W211 E63

[@legendarycars9997]

Nah you don’t remove the radiator..You just have to remove the Fan Shroud/Engine cooling fan!