When your original Volvo XC60 , XC70 , XC90 , V40 , V50 , V60 , V70 , S40 , S60 , S80 , C30 , C70 oem xenon headlight low beam or HID bi-xenon have problems, like light failed, dipped beam not working, flickering or have any other issues, you only need to change or replacement related original xenon parts like: ballast, gas discharge bulb, igniter(Ignition) or wire harness, cable to repair your HID light is ok, no need to cost a lot of money to buy a whole brand new headlight assembly like the car dealer suggest. Normally speaking, when your front headlight lamp have problem, check out the fuse first, if it’s ok, then replace the factory fit xenon control unit box ballast is ok, because from our many years experience, when the headlight not work, 90% of the problem is on the ballast.In this video, we already listed up all the possible original OEM xenon parts inside. When your original part fail, please choose the same original part to swap is ok. Don’t go to choose the aftermarket cheap HID kit. Because if you use that, need to cut the original OEM wire circuit in the procedure of installation, and need to make holes on the waterproof cover of the headlight assembly, after done all these works, your headlight will be very soon to fail and need to change. It’s not worth and finally will cost you much more money.If you have any other questions, you can visit our website or email us at Thanks.