This guide will help you replace the low- or high-beam light bulbs in your headlight assembly. Replacing the light bulb on a Mercedes-Benz E-Class is easy. If one of your light bulbs has burned out, you will get a warning on your instrument cluster stating “LAMP DEFECTIVE.” Follow the instructions below to replace the light bulbs on Mercedes-Benz models: E320 E430, and E420 E55, 1996, 1997, 1998, 1999, 2000, 2001, and 2002. The W210 E-Class uses an H7 light bulb type for both the low and high beams. You can use this opportunity to upgrade the light bulbs with brighter HID light bulbs; see note below.
WHAT YOU NEED
- Replacement Light Bulb H7 Buy on Amazon
Here are a few H7 HID Error Free light bulbs on Amazon that will work with W210 and will not give the “LAMP DEFECTIVE” error.
How to change the headlight bulb on a Mercedes-Benz W210
- Open the hood by pulling the hood release located under the dash on the driver’s side.
- Pull the hood catch and lift the hood.
- Locate the back of the headlight.
- Remove the plastic cover from the back of the headlight assembly. There are two back cover types. The one shown in the picture below is where you need to push out the metal clips. There is also the round cap that you twist counterclockwise to remove.
- Remove the light bulb from the socket by twisting it a few degrees.
- Install the new light bulb and reinstall it in reverse order. If you are installing an HID H7 Upgrade Error Free Conversion Kit, you may need to drill holes in the back cover.
How to replace headlight bulbs on Mercedes-Benz E-Class W210 1996-2002

What is the Best OBD-II Scanner Tool for my Mercedes-Benz?
If you’re experiencing problems with your Mercedes-Benz, a YOUCANIC full system diagnostic scanner can help you troubleshoot the issues. This advanced diagnostic tool can read and interpret the fault codes stored in your car’s computer system, providing detailed information about any problems with the engine, transmission, brakes, or other critical systems.
The YOUCANIC scanner can also perform diagnostic tests on various systems, including the ABS, airbag, and steering systems, to help pinpoint the root cause of any issues. With this information, you can make more informed decisions about repairs and maintenance, saving time and money on costly repairs.