Outside, on the center top of the windshield, you should able to see a receiver-like "thing"(which is behind the inside rear mirror).
As for Parktronic, you can see the "dots" on the front and rear bumpers which are integrated into the bumper strips. I believe it's 4 front, 4 rear, but I can be wrong....
As for load-level, I don't think W210s have rear load-leveling(not sure about E55, maybe it does). But, if you want to test it out anyways, then start your engine, and open up the trunk, sit on it, and if the rear goes down as you sit on it, then it doesn't have load-leveling(I know, I know, it's dumb...)...
Hope this solve your answers....
Andy Kuo
------------------
<UL TYPE=SQUARE>
<LI>1992 Mercedes-Benz 400SE
<LI>Moonstone Grey/Black Leather
<LI>Blue/Red Headlights
<LI>Xenon-Look Foglights
</UL>
ICQ#26950002
Mercedes Owners ICQ ActiveList ID#61730549
http://drive.to/akry