AvtoNova A2129007804 Mercedes Benz Headlight Module

1. OEM Mercedes-Benz OEM Replacement
Designed to match the original A2129007804 specification, delivering factory-level reliability and performance for your Mercedes Xenon lighting system. OEM fitment means confidence in compatibility and durability.

2. Essential Xenon Headlight Control Unit
This ballast/control module regulates voltage and current to the Xenon HID bulbs, ensuring consistent, bright illumination and reliable headlight operation night after night - a must-have when the original unit fails.

3. Precise Light Range Adjustment Functionality
Supports the headlight range adjuster on the left side, maintaining proper beam aim and compliance with safety standards - key for correct light distribution and avoiding glare for oncoming traffic.

4. Broad Vehicle Compatibility
Fits a range of Mercedes-Benz E-Class models (especially W212, S212, C207, A207) equipped with Xenon headlights - including E200, E250, E350 and E550 from around 2008-2016 (confirm exact year and headlamp setup before ordering).

5. Durable, OEM-Grade Construction
Built to meet Mercedes-Benz quality standards, with robust components that withstand heat, vibration and everyday automotive stresses - helping ensure long service life and dependable performance.

6. Direct Replacement with Easy Fitment
Engineered for plug-in installation into the existing headlight assembly harness - many units require little to no modification, making installation straightforward for technicians or knowledgeable DIYers.

7. Helps Restore Full Headlight Functionality
Replacing a failed unit often eliminates dashboard light faults and restores full Xenon headlight operation, improving visibility and safety.

8. Cost-Effective vs Full Headlight Assembly
Replacing just this control module/ballast is usually far more affordable than replacing the entire headlight assembly when the electronics - not the lens or housing - are the issue.

What's in the box
1 x A2129007804 Headlight Module