Product Introduction This replacement LED ballast control unit is a brand-new, high-performance part made specifically for Mercedes-Benz W212 E Class models. It carries the original equipment part number A2129005324, which means it’s built to match the exact standards of your vehicle’s factory component. As a key part of the LED headlight system, it regulates power flow to ensure your headlights stay bright, stable, and free from flickering—fixing common issues like dimmed lights or complete headlight failure that come with a worn-out original ballast.
Key Features Restores Headlight Functionality: Solves problems such as flickering LEDs, uneven brightness, or non-working headlights by providing consistent power regulation, bringing your Mercedes’ lighting system back to optimal performance. Exact Fit for W212 E Class: Designed to align with the Mercedes-Benz W212 E Class’s wiring harness and mounting points, so there’s no need for extra modifications or adapter parts during installation. Durable Automotive-Grade Build: Made with high-quality electronic components that can handle engine bay heat, vibration, and daily use, ensuring long-lasting reliability even in harsh driving conditions.
Specifications Condition: Brand New (unused, with perfect working performance and a factory-matching exterior finish) Part Number: A2129005324 (matches the original Mercedes-Benz OEM number to guarantee compatibility) Product Type: LED Ballast Control Unit (specialized for regulating power to LED headlight assemblies) Fitment Style: Direct Replacement (swaps seamlessly with the old ballast without cutting wires or adjusting the vehicle’s original setup) Mounting Position: Engine Bay (installs in the factory-designated location near the LED headlight assembly)
Fitment Fits Mercedes-Benz W212 E Class models (compatible with vehicles equipped with the original A2129005324 LED ballast)
Package Included 1 × LED Ballast Control Unit (Part Number: A2129005324)
