D1S Xenon HID Ballast Control Unit For Mercedes-Benz
Restore your vehicle’s original headlight brightness with this D1S Xenon HID ballast control unit. Designed as a direct aftermarket replacement, it stabilizes high-voltage ignition and maintains consistent electrical flow to your projector lens system. Failed factory ballasts typically cause flickering, dimming, or complete bulb failure. This unit delivers reliable ignition across Mercedes-Benz, BMW, and select GM, Volvo, Kia, and Hyundai models without replacing full headlight assemblies. Verified against multiple OE references, it mounts directly into standard harnesses for a efficient replacement.
Benefits & Tips
- Confirm the D1S socket specification before ordering to guarantee proper electrode seating inside the bulb housing.
- Apply dielectric grease to connector terminals during reassembly to block moisture and extend contact lifespan.
- Inspect internal projector lenses before installation, as surface scratches drastically reduce output beam clarity.
Product Specifications
- Socket Type: D1S Xenon HID
- Reference OE Numbers: A1729015400, 130732931715, 130732931815, 130732927001, 63127296090, 63117317408, 63117237644, 63117318327, 63117356250, A1669002800, 84159615, 31297423, 921903R900, 921902T100, 921902P000
- Vehicle Fitment: 2010–2019 Mercedes-Benz E/S/C/ML/GL/SL lines, BMW F/X-series sedans and coupes, Mini R-series, GM CTS/XTS, Volvo C30/C70, Kia Optima/Cadenza/Sorento, Hyundai Santa Fe
- Condition: 100% new, factory pre-tested
- Certification: CE compliant
Package includes:
- One (1) D1S Xenon HID Ballast Control Unit
Warnings & Reminders
This aftermarket component replaces aging units but is not a genuine manufacturer part. Professional fitting is advised as mounting diagrams are not supplied. Match the old unit’s physical shape and connector layout to yours before purchasing. Screen displays may show slight color differences from the actual hardware.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Fulfilling precise automotive parts requests for European clients since 2002 remains the core mission behind every order processed at intercyprus.com.