Can anyone tell me how to fix a flashing xenon on an E92. When I turn on dipped beam, the passenger side headlamp flashes twice (separated by approx 2 seconds) then stays on permanently. The dash shows an error soon afterwards. Someone told me that it was the starter going. Presumably this means the ballast. My question is, should I change the ballast or the bulb?
Ballast: BMW E92 E93 X3 X5 Mini Cooper S AL OEM Xenon Headlight HID Ballast Control Unit | eBay
Bulb: BMW E90 E91 E92 E93 Xenon Healight Xenon Bulb OEM | eBay