Due to their location, have the bulbs in the left-hand headlamp changed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

Switch off the lights.

Open the hood.

Turn housing cover 1 counter-clockwise and pull it out.

Turn bulb holder 2 counter-clockwise and pull it out.

Push the two detents on the right and left of bulb holder 2 and pull the bulb from bulb holder 2.

Insert the new bulb into bulb holder 2 until it engages.

Insert bulb holder 2 into the guide in the headlamp.

Cable outlet 3 must be pointing down and to the right.

Turn bulb holder 2 clockwise.

Cable outlet 3 must be pointing down and to the left.

Align housing cover 1 and turn it clockwise until it engages.