How to Install Mercedes Benz Headlights in 7 Easy Steps
Car headlights or headlamps burn out and the electrical system ages over time. And for that matter, it's important to clean and check them. It's definitely unsafe to use your vehicle if one of them is burned out, or your view of the road is impaired by the fading car headlights. Most of the vehicle headlights should last at least 18 to 24 months or longer. When the bulb of your car is already busted, there's only one thing that you can do and that's to replace it. Here are the general steps that you can do when replacing those busted bulbs. Installing new headlights isn't a backbreaking task, but it is quite tedious. Expect the procedure to last approximately 20 minutes per headlight.
Required skill level: Easy
Needed tools and materials
- Flathead screwdriver
- 10mm socket wrench
- High-beam replacement bulbs
- Low-beam replacement bulbs (if needed)
Removing the trim piece
Turn off the engine and pop up the hood. Inspect the headlight that you want to replace. Check starting from the corner of the headlight assembly. Locate the plastic trim piece under the assembly (found on the corner) and notice a small tab. Press down on this tab using a flathead screwdriver and remove the trim piece by pulling it outwards.
Removing the bolts
Loosen the two 10mm bolts from behind of the trim piece found underneath the headlight assembly, and then carefully detach the 10mm bolt located on top of the assembly.
Releasing the headlight assembly
Examine the topmost corner of the headlight assembly. You will notice a tab that looks like the one that connects the front trim piece. As in the previous tab, simply depress it using a screwdriver and gently release the headlight assembly.
Accessing the bulb sockets
To find the electrical connection, simply pull out the headlight assembly by a few inches. The connection is found underneath it at its rear. To unhook, push on the plastic tab and pull out the assembly to gain access to the bulb sockets.
Removing the bulb socket cover
Push on the plastic tab located in the rear of the assembly to detach the low-beam bulb socket cover. Should you need to replace the high-beam headlight, remove the cover on inside of the headlight assembly by gently twisting it.
Replacing the bulb
Push on the clip on the bulb socket to free the wiring harness. Twist the bulb counter-clockwise to disengage. Put in the replacement bulb while twisting it clockwise. Plug in the wiring harness to the replacement bulb, and put the bulb socket cover in. You may turn the plastic cover clockwise if you want to change the high-beam bulbs. Reinstall the headlight assembly and leave a few inches of clearance for the electrical connection.
Reconnecting the electrical connections
Reattach the electrical connection to the back part of the headlight assembly. Depress the headlight assembly tightly into its mount to reconnect the clip. Secure the three 10mm bolts using a socket wrench. And then put the trim piece back in position. Press it in securely to reconnect its clip and install at the bottom part of the headlight assembly.
Safety Tips and Warnings
- If you encounter any problems that are not mentioned in the instruction manual, seek the help of a professional mechanic
- Wear protective gear when working on your vehicle
- Having an assistant will help you when removing the front bumper of your vehicle.
- Be careful when working with the bumper or any parts that to the vehicle's body to prevent damage such as scratches and dents.
- Halogen bulbs can be quite hot, so be careful not to touch them before they cool down.