For Audi A3 A4 VW D3S D4S Xenon HID Headlight Ballast Control Unit ECU 8K0941597
Mitsubishi Electric 8K0.941.597 / 8K0941597. 1 x D3S D3R D4S D4R Ballast. If unsure you can send us an image of your current ballast and we will advise you whether it is the correct part or not. Supported Xenon bulb types: D3S D3R D4S D4R.