Car 2013

1. Locate the EGR valve of the Mercedes 300D in the back of the engine on the drivers side of the engine compartment. The EGR valve is a circular metal device with a vacuum hose attached to the top of the valve.
2. Remove the vacuum hose from the top of the EGR valve by hand and set it out of the way.
3. Unfasten the two bolts on the sides of the EGR valve with a socket wrench that secures the part to the engine.
4. Remove the EGR valve from the Mercedes 300D engine compartment.

1. Turn off the 300Ds engine.
2. Push in the headlight cover to open it, and swing it away from the vehicle. Remove the four screws behind the headlight with the screwdriver.
3. Tug on the electrical connector. If it comes out, securely plug it to the rear of the headlight.
4. Push the bulb in and turn to the left, then lift the bulb out to remove it. Use a clean cloth to install the new bulb. Reattach the screws and close the headlight cover.
5. Open the hood and locate the fuse box to the right of the engine. Remove the cover and locate the headlight fuse. It is labeled HEAD LIGHT. If the fuse is blown, pull it out and replace it. Place the cover onto the fuse box and close the hood.