Mine has headlight wipers but I have standard Halogen bulbs not Xenons,
*EDIT* If u have Xenons, you'll have warnings on the headlight assemblies warning of High Voltages. On the W202, the beam reflector is also a totally different shape between the two different types. The Xenon reflector is much more curved and kinda encroaches into the main beam area where as the halogen reflector has a straight division adjacent to the main beam area... if that makes sense!
*EDIT2* One way to be sure... W202's fitted with Xenons don't have the manual headlight level adjust thumbwheel. Compare fgaffney's car with mine..