Front or back? Back you can lift it by the diff in the center. (or from the factory jacking places) If there is an engine cradle you can lift it from the center. If not there should be jack points behind the front wheel arch and in front of the rear wheel arch .(My Benz has little round rubber pads front and rear) You shouldn't have to worry about cracking the windscreen because the factory jack is no different than a floor jack. Don't forget the jackstands!! (my own close encounter!)

Bradley W. Buer
87 190e 2.6