doughboy540

so i turn on my car and i see one side of the ground is purple i go out side and look at the headlights and one side is normal and the other one is purple 2010 550i m sport just curious good thing is im still under factory warranty so i dont care wat it will cost

Mike_K

The purple bulb just means it's about to fail. That should be an easy enough swap for them.

pcy

If one side is failing, the other one is not too far behind. Ask the dealer to change both sides. If you look carefully, you can tell the difference [in the light output] between the old bulb on the other side and new bulb.

jdmek998

Sounds like the bulb is about to die. When you take the car into the dealer tell them that the bulbs sometimes flicker and noticed the change in the color. Because they wont replace it cuz it looks weird. It has to be failing to be replaced. Good luck.

doughboy540

yea im gonna have to do that if it gets any more purple it looks like a riced out civic with an ebay hid kit

AchtungE60

Time to change.

C_o_s_m_i_n

I also replaced mine past month for same reason. I replaced them in pair, for best performance and no color difference.
At dealer the cost is ~230$ each bulb.

AchtungE60

hmm i replaced mine like 3 yrs ago for $20 a pair they're 5000K.

C_o_s_m_i_n

But not OEM.
Maybe chinese no-name product.

The oem HID bulb is 4150K and lights much better than chinese products. In Romania we pay the dealer ~250$ for 1 bulb.
I have tested more versions and I stayed on the oem one.

One that is approaching the quality of oem bulb is osram CBI. ~ 200$ a pair on ebay.