The C43 originally shipped with Xenon headlamps whose lens pattern differs from the halogen units used on lesser C-classes; because the housings interchange, damaged cars often get cheaper halogen lenses fitted, which knowledgeable buyers spot as a sign of prior front-end damage. Xenons were part of a Value Package with headlight wipers and rain sensor.
Xenon versus halogen headlights and option packages
Mercedes-Benz C36/C43 AMG (W202) · buying