See also:

Removing/installing the headlamp cover
You must remove the headlamp cover in the engine compartment before you can replace the bulbs in the headlamp. To remove: press retaining clip 1 in the direction of the arrow. Pull cover 2 f ...

Rear fog lamp
To switch on the rear fog lamp: turn the SmartKey in the ignition lock to position 2 or start the engine. Turn the light switch to or (vehicles with front fog lamps), or turn the light s ...

Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center. Observe the notes in the "Changing a wheel" sec ...