How to Change Side Marker Light on an S550


1. Locate the front wheel fender lining behind the wheel. There will be a series of plastic push pins to pull out of the fender well. Pliers may be necessary to help pull the pins out.
2. Peel the lining out of the way. This will make room for your hand to reach through to the fender.
3. Locate the back of the marker light. Twist the socket counterclockwise and pull it out of the assembly.
4. Pull the light out of the socket and replace it with the new light. Push the light in until it locks in place.
5. Twist the socket clockwise until it locks in place. Pin the lining back into the wheel well. The pins will lock the liner to the wheel well.