Description
OEM headlight control unit responsible for controlling and powering the vehicle’s xenon or LED headlight system. Ensures correct brightness, beam alignment, and consistent lighting performance for safe driving.
Position:
Right-hand side (RH) – driver side on right-hand drive vehicles
Key Functions:
- Regulates headlight voltage and power supply
- Controls beam intensity and lighting output
- Supports adaptive lighting and leveling systems
- Interfaces with vehicle ECU for error detection
- Maintains stable and reliable illumination ()
Vehicle Compatibility:
- Mercedes-Benz E-Class W212 (2010–2016)
- Compatible with various Mercedes models using similar modules
Interchange / Cross Reference:
- Matching left side: 74971400
Common Fault Symptoms:
- Headlight failure or intermittent operation
- Flickering or uneven brightness
- Warning lights on dashboard
- Adaptive lighting not functioning
