How to Install Mercedes-Benz Welcome Lights?

2 Answers
HoldenMarie
07/29/25 10:53pm
The installation steps for Mercedes-Benz welcome lights are: 1. Remove the protective cover below the driver's side of the instrument panel and the left instrument panel trim; 2. Loosen the driver's side fuse and relay module; 3. Remove the four-door entry guards, which have adhesive that needs to be cleaned thoroughly; 4. Install the computer for the illuminated entry guards, the wiring harness for the illuminated guards, and the four-door illuminated guards; 5. Reinstall the original vehicle trim panels and control unit that were removed. Taking the Mercedes-Benz E300 as an example, its body dimensions are 5078mm in length, 1860mm in width, and 1484mm in height, with a wheelbase of 3079mm.
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AvaLee
08/16/25 12:28am
I've got experience installing Mercedes welcome lights, and it's quite straightforward. First, prepare tools like a screwdriver and insulating tape. When buying accessories, opt for genuine Mercedes or compatible brands to avoid malfunctions. Then, remove the door panel, locate the power connector by the door, and carefully connect the welcome light wires—make sure not to reverse the positive and negative. After connecting, secure them with electrical tape. Next, adjust the light position to align properly with the ground, then close the door to test if the projection is clear and bright. With a bit of practice, you'll get the hang of it. Beginners might take about an hour to do it carefully. After each installation, remember to check the circuit for safety and avoid leaving any hazards. If the projection is blurry, fine-tune the light angle. Tools and accessories can be easily bought online, and DIY saves both time and money.
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