Does anyone knwo step by step how t replace the driver side Fog light? It is out. I drive 2000 E320 and Thank you

 

Bulb?

Under the car, there is a trap door, turn the screw lock (its a plastic thing that looks like a screw) out of the way of the door, flip out the trap door, reach inside to remove the bulb (I assume you know how to do that). You may have to lift up the car to have better access under the car but I have done it without having to lift the car..... alot of guess and feel work. You can just drive the car over a brick or thick pc of wood to lift it up slightly if it helps.