Q: Replacing halogen headlights with xenon or LED

asked by on

My car now has halogen headlights. Would it be a good idea to replace them with LED or Xenon headlights, provided that I get the Mercedes original ones? Would the computer work with the switched Xenon headlights, especially if the computer didn't come originally with the car? Please advise me if I should do this and if I should expect any problems.

The halogen headlights only require that they are plugged into the the proper socket to work. LED or xenon headlights would not work as they would require heavily modifying the lighting system.

LED lights draw much less power than typical lights so special wiring and sockets are used for them. The Xenon headlights require completely different wiring and a ballast or computer to turn on each light. It may be an option with factory equipment from Mercedes but the cost would probably be very high either way. The best solution may to install brighter and whiter halogen bulbs, which are commonly available.

The technicians at YourMechanic are here to answer any questions you may have and replace your headlight bulbs should you choose to go in that direction.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Replacing halogen headlights with xenon or LED

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Converting to OEM HID headlights

Yes, the wiring harnesses and daytime running light operation is completely different for both the HID and halogen systems. The EVO with the HID lights has a separate relay and wiring that runs the DRL's in a bulb positioned where...

Q: What's the difference between the ECM and PCM?

The engine control module (ECM) controls all the engine functions to keep it running correctly monitoring all the sensors of the engine. The power train control module (PCM) will include multiple control modules in one case called a PCM. The...

Q: Q: Headlight not working properly

Hello. It does seem that you have several issues here. First, get your headlights aligned properly, but have a qualified technician investigate the electrical issue; some could be related to accident damage, poor or missing ground wires, or items that...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.