Are you trying to erase with the engine running or just the key on ?


This is why I bought an iCarsoft MBII (not i980) because Torque Pro and other generic readers just get the generic "P" codes and not the real Mercedes codes.


A dealer with a Star/DAS scanner can pull them for you but may charge the same as the iCarSoft costs (buck and a half).


Might call around a see if there is an Indy that can pull Mecesdes codes. Tell them it is the same as an '01-'03 (Facelift) SLK320 with 16 pin OBD connector.