Car--2002 C230 Kompressor

Going to change both drive belts, accessory belt tensioner, supercharger belt tensioner pulley. Took a look last night for a dry run, pretty straight forward and lots of room to work once the air box is popped out. Accessory tensioner rotates easily (almost too easy) so that side looks like a piece of cake.

The S/C tensioner looks like it needs to swing clockwise to release tension, but when i put the E8 (or was it E10??) socket on it it felt like i was turning the stud so i stopped. Can't find the job on Alldatadiy, spent a few hours doing searches on this and another MB forum, and even the EPC seems to have a lack of S/C info for the M111. Plent of info on the drive belt side--but it all starts with "remove supercharger belt" without addressing the tensioner.

Feels like i'm overlooking the obvious--and hoping one of you can give me a "DOH" moment this morning!! Thanks in advance.

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Earl McLain
'02 C230 Kompressor
'89 560 SEL "Frau BlueCar" (retired April 2004)