If you are interested in saving money a D2C bulb will fit in it's place, but make sure you get a pair so you will have matching color. These are available on our website.
D4R Philips 42406 OEM 4300K bulb DOT Mostly used in the automotive world today by manufacturers like Audi, Mercedes Benz, Lexus, and BMW, VW and Porche etc.. Sold individually 1 bulb. Bulbs and Ballasts are non-returnable, non-refundable, so make sure you are ordering the correct part for your car. Bulb or ballast?: see More Details. These new D4S bulbs can only work with Hella, Philips and Denso D4S/D4R ballasts only.