Looking at a Haynes manual for a W124, for the bottom shock configuration it shows the tensioner shock attached at one end to a location at the 7 o'clock position relative to the crank pulley and at the other end an arm with two holes that extends below the tensioner. No picture detail on the upper shock configuration but it does mention that one end attaches to the alternator bracket. It also discusses a configuration with no shock.
Have you checked with MB if a tensioner shock is available for your chassis number? The part system should come back with a part number or N/A.
I hope that helps.
Last edited by sixto; 09-06-2003 at 02:59 PM.