As Benzmac rightly points out, Mercedes must have sold a zillion of these resistors. My dealer told me they have a habit of busting when the car goes through the car wash as the ceramic cover and/or the exposed coil, once soaked with car wash water, shatters as they are really not in the best of locations, low on the frame next to the headlight. He has suggested that they are covered with a rag when either hand washing the vehicle or sending it through the washer ! Good advice I think anyway
