Bosch D3 Ballast 130732931515 Compatible with Mercedes-Benz A222/156/117 Direct Installation

Bosch D3 Stabilizer (OEM: 130732931515) installed directly under the headlight assembly for Mercedes-Benz, providing a stable high-voltage current to xenon bulbs, ensuring proper lighting and brightness. Perfectly fits Mercedes-Benz A-Klasse A222, A156, A117 series; factory direct plug-in with no wiring modification required. Installation is medium difficulty; professional technician recommended; 30-60 minutes. If a single headlight is not on, flickers, or delays starting, after ruling out bulb failure, usually the stabilizer is aging or damaged and needs replacement.