LED Headlight Ballast Control Unit for Mercedes-Benz W205 C250
Your Mercedes-Benz W205 headlight system requires a stable driver module to maintain sharp beam patterns and instant high-beam response. When the original ballast degrades, owners frequently encounter flickering bi-xenon projectors, delayed light switching, or complete lane-light failure. This aftermarket LED headlight ballast control unit restores proper electrical regulation through a direct H1 socket connection, eliminating intermittent faults without modifying the factory projector lens housing.
Benefits & Practical Advice
- Pre-Purchase Verification: Always cross-check your chassis VIN or existing part number against the reference list below to guarantee pin alignment and CAN bus communication.
- Moisture Protection: Coat the metal contact pins with dielectric grease before plugging the unit back into the harness to prevent corrosion-related voltage drops.
- System Reset: Reconnect the negative battery cable after installation to clear stored headlamp fault codes and allow the body control module to recognize the new driver.
Technical Specifications
Brand: EIFETT
Item Category: Projector Lens Accessories / Ballast
Socket Interface: H1
Condition: 100% new, pre-shipment tested
Vehicle Compatibility: Mercedes-Benz C-Class W205 platform including C250, C200, C260, C300, C350, C63S, and S-Wagon S300/S320/S400/S500/S600 (model years 2014–2018)
Reference Part Numbers
A2229004505 | A2229008105 | A2059005110 | A2C73613507 | HW-NR A2059013203
Package Includes:
- 1 x LED Headlight Ballast Control Unit
Operating & Safety Notes
This component is an aftermarket replacement and does not feature original Mercedes-Benz branding or sealed retail packaging. Professional electrical installation is strongly recommended. Allow a 1–3 mm dimensional variance due to standard manufacturing tolerances. Actual color representation may vary slightly based on monitor calibration and ambient lighting conditions. Confirm full compatibility prior to purchase to avoid unnecessary returns.
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