LED Headlight Control Module A2139002434 for Mercedes-Benz E-Class, CLS, GLB, GLC (2020-2023)

New LED headlight control module, a direct replacement for Mercedes-Benz A2139002434, for 2020-2023 Mercedes-Benz E-Class, CLS, GLB and GLC with factory LED headlights. Replacement unit for Mercedes-Benz, not a Genuine Mercedes-Benz part. Free shipping to the lower 48.

Fix a Dark or Flickering LED Headlight

This module drives the LED light sources inside the headlamp. When it fails the headlight can go dark or flicker and a lighting fault can appear. Replacing just the module costs far less than a complete LED headlamp.

Fits

Fits vehicles with the factory LED headlamp. Match the part number on your old module before ordering.

OEM / Interchange Part Numbers

• Mercedes-Benz A2139002434 / A213 900 24 34 / 2139002434
• 2139007933
• A2139002334 / 2139002334 / 2139007833

Common Signs of a Failed Module

• One LED headlight goes dark while the other works
• LED headlight flickers or cuts out
• Headlight or lighting fault message on the dash
• Daytime running light or low beam section stops working

Specs

• Brand: replacement for Mercedes-Benz (not Genuine OEM)
• Lighting technology: LED
• Function: LED headlight control module
• Placement: front left or right headlight
• Mounting: screw-on
• Programming: required (coding to the vehicle)
• Sold as one unit, new
• Warranty: 1 year

What's Included

• 1 x LED headlight control module A2139002434 (replacement)

Installation

1. Switch the lights and ignition off and disconnect the negative battery cable.
2. On the Mercedes-Benz E-Class, CLS, GLB and GLC the LED control module is mounted to the back or bottom of the headlamp housing. On most models the headlamp has to be unbolted and pulled forward (bumper cover loosened) to reach it.
3. Unplug the module connector, remove the screws holding it and take the old module off.
4. Compare the part number on your old module to the numbers above before fitting the new one.
5. Fit the new module, refit its screws and lock the connector fully. Reinstall the headlamp and trim and reconnect the battery.
6. Then test the headlight. On these Mercedes-Benz models the new module needs to be coded / programmed to the vehicle with a Mercedes-capable diagnostic tool (XENTRY or equivalent) before the light works correctly, so plan for a dealer or specialist shop visit if you do not have one.

FAQ

Is this a Genuine Mercedes-Benz part?
No. It is a new replacement built to fit in place of Mercedes-Benz A2139002434 and the interchange numbers listed above.

Does it fit either side?
Yes, it fits the left or right headlight. Match the part number on your old module. It needs coding to the vehicle after install.

Is shipping free?
Yes, shipping is free to the lower 48 US states.