LMA1973

Ive searched all over this site and the sister site and cannot find anything definitive. Need to change the front brake pads and i need to know to know for sure if the front calipers on a 1999 ML430 are fixed or floating. Evidently if they are fixed, i need to do nothing more than punch two pins out of the caliper and remove the old pads and slide the new ones in. If its floating then i have to remove the caliper.
TIA