I'm on tirerack's web site right now, looking for rear pads for my 99' slk230 (build date July 99). They list two options;

A)Rear brake pads for models with 2 retaining pins in caliper.

AND

B)Rear brake pads for models with 1 retaining pin in caliper.

I took a look and see only one pin the runs through the back of the caliper to hold a retaining spring in place. Is this the pin in question?

NP