Mercedes-Benz A2479004204 LED Headlight Control Module

Mercedes-Benz A2479004204 LED Headlight Control Module

Part Number: A2479004204
Cross Reference: A2C7530742300, A2C7530742200
Headlight Type: Full LED – High Performance & Multibeam
Function: Controls DRL, Dipped Beam, Turn Signal, Headlamp Range
Placement on Vehicle: Right Side
Warranty: 1-Year HIDS-DIRECT Warranty
Condition: New – Compatible Replacement

Product Overview

This Mercedes-Benz A2479004204 LED Headlight Module is a high-quality compatible replacement for vehicles fitted with Full LED or Multibeam LED headlamps. It is used to control key lighting features including:

• Daytime Running Light (DRL)
• Low Beam / Dipped Beam
• Front Turn Signal
• Headlamp Range Adjustment

This module is most commonly installed on the right headlamp (passenger side in UK-spec cars) and will require coding after installation to function correctly.

⚠️ Common Symptoms of a Faulty Original Unit

• "Intelligent Light System Inoperative" message
• "Right dipped beam defective – consult workshop"
• "Front right indicator malfunction"
• "Right daytime running lamp" warning
• Headlight range or height adjustment failure

Common DTCs (Fault Codes)

• U118B00 – Communication with right headlamp range adjustment unit failed

OEM & Compatible Part Numbers

Mercedes-Benz Part Numbers:

• A247 900 42 04
• 2479004204
• MA2479004204

Continental Part Numbers:

• A2C7530742300
• A2C7530742200

Other Interchangeable Codes:

• A2479001802, A2479003503, A2479004004, A2479003703
• HW-NR: A2479018402, A2479015701, A2479010802
• SW-NR: A2479026401, A2479020201, A2479023401

Vehicle Compatibility

✅ High Performance LED Headlight Models:

• A-Class (W177): 2018–2021
• B-Class (W247): 2018–
• CLA-Class (C118): CLA220d, CLA250, CLA45 AMG
• C-Class (W205, S205, C205, A205): Saloon, Estate, Coupe, Convertible
• GLC (X253, C253): GLC200–GLC63S AMG
• GLE (W167, C167): GLE350–GLE63S AMG
• GLB (X247): GLB180–GLB35 AMG
• GLA (H247): GLA200–GLA45 AMG
• GLS (X167): GLS450–GLS63 AMG
• G-Class (W463): G500, G550, G63 AMG
• Sprinter (W907/W910): 2018–2022

✅ Multibeam LED Headlight Models:

• A-Class (W177, V177), CLA Coupe/Shooting Brake, GLE V167, C-Class W205 Facelift, GLB, GLA, GLS
• Petrol, Diesel, and Plug-in Hybrid (PHEV) variants supported

⚠️ Note: Always match the part number from your original unit to ensure compatibility.

Installation Notes

• Plug-and-play fitment – no modifications required
• Coding is required using Mercedes-compatible diagnostic tools
• Professional installation is recommended