This guide explains how to verify a 2020+ Mercedes GLS X167 LED headlight retrofit before ordering. It focuses on original lamp type, electronics, included modules, coding and professional installation.
Product and Vehicle Scope
The Mercedes GLS X167 LED Headlight Assembly 2020+ is presented as a Multibeam-style retrofit for the X167 platform. The safest match starts with a 2020-or-later X167, then confirms the vehicle’s original lamp label, connector photos and VIN.
Compatibility Checklist
- Full VIN, build month and market
- Left-hand or right-hand drive
- Original LED or Multibeam headlight specification
- Photos of lamp labels, rear connectors and modules
- Adaptive lighting, automatic high beam and camera equipment
- Any previous front-end repair or wiring changes
Do not approve the order from the exterior shape alone. Two X167 vehicles can look identical yet use different controllers, software configurations or regional beam patterns.
Modules, Wiring and Coding
Request a vehicle-specific packing list before payment. It should state whether the price is for one side or a pair, which control units are installed, whether original modules transfer, and whether adapters are supplied. Ask the installer to scan the vehicle before work so existing lighting faults are documented.
After fitting, coding or variant configuration may be needed to recognize the lamp and enable supported functions. Adaptive lighting and automatic high beam also depend on correctly functioning cameras, sensors and calibration—not only the headlight assembly.
Installation and Testing
A professional installation should include physical fit, connector inspection, moisture sealing, beam aiming and a diagnostic scan. Test low beam, high beam, turn indicators, daytime running lights, welcome animation, adaptive functions and dashboard warnings. Retain the original assemblies until the retrofit has passed night driving and wet-weather checks.
Before You Order
Send the seller the VIN and clear photos, then obtain written confirmation of fitment, beam pattern, included modules and coding responsibility. This evidence is more reliable than relying on “2020+” alone.
Frequently Asked Questions
Will this LED headlight assembly fit my Mercedes GLS?
The assembly is listed for the GLS X167 from 2020 onward, but final fitment depends on VIN, market, build date, original headlight type, connector layout, steering side and installed lighting options.
Which Mercedes GLS year models are compatible?
Use 2020+ X167 as the initial vehicle range. A model year alone is not sufficient because regional and equipment changes may affect modules, connectors and control functions.
Does the Mercedes GLS X167 headlight retrofit require coding?
Coding, configuration or calibration may be required, especially when changing from a different factory headlight specification or integrating Multibeam functions. Confirm this with the supplier and installer before purchase.
What modules are included with the headlight assembly?
The exact package must be confirmed in writing. Ask whether LED control modules, ballasts or drivers, wiring adapters, brackets and any coding support are included, and whether original modules must be transferred.
How difficult is installation?
Installation is medium to high difficulty and should be completed by a Mercedes lighting specialist. Bumper removal, beam alignment, coding and checks for dashboard faults or moisture sealing may be required.
