[louisfallows]

Apologies in advance for my lack of knowledge
My front light began blinking (like a strobe ) last night and then the dipped beam warning light came on the dash.could someone tell me what bulb I need to buy.i think it will be a h7? Don't know much about my lights other than I know it has angel eyes .its a 330d e90. Are my lights xenon? Help please I daren't go out in the dark......

[louisfallows]

I've had the back of my light off now and have worked out I have xenons.ive began looking on eBay for d1s bulbs but don't know wether to buy 1/2 or cheap /expensive, was even considering a second hand one.advice would be much appreciated