Headlight question

cjsabataso · 03-14-2016, 06:35 PM

Hello,
over the last couple weeks I've noticed my passenger side headlight has failed to turn on immediately when i turn my headlights on. Drivers side turns on, then theres a delay for like 5-15 seconds and then my passenger side turns on. Tonight it wouldn't turn on at all. Neither low beam or high beam works. Because of that, i assume I'm going to need to replace more than the bulbs? has anyone had this issue before ?
Just looking for a little insight and wonder what parts ill need to replace? car is an 08 e92 335xi. Thanks in advance for any help

Wilt · 03-14-2016, 06:40 PM

Assumption: HID Xenon ????

cjsabataso · 03-14-2016, 06:50 PM

Quote:

Originally Posted by Wilt

Assumption: HID Xenon ????

just checked the vin says i have Xenon Adaptive Headlights!

VTECaddict · 03-14-2016, 06:52 PM

Swap the bulbs between the two sides and see if the problem follows the bulb. If it does, it's the bulbs. If it stays on the same side, it could be the ballast.

Wires · 03-14-2016, 08:31 PM

Quote:

Originally Posted by VTECaddict

Swap the bulbs between the two sides and see if the problem follows the bulb. If it does, it's the bulbs. If it stays on the same side, it could be the ballast.

I'd repeat the same test by swapping ballasts as well. It's probably the ballast, not the bulb (unfortunately).

VTECaddict · 03-14-2016, 08:35 PM

Quote:

Originally Posted by Wires

I'd repeat the same test by swapping ballasts as well. It's probably the ballast, not the bulb (unfortunately).

Swapping ballasts doesn't tell you any more than just swapping the bulbs, unless you are suspecting a wiring fault.

Wilt · 03-15-2016, 09:39 AM

Quote:

Originally Posted by Wires

I'd repeat the same test by swapping ballasts as well. It's probably the ballast, not the bulb (unfortunately).

My E46 (purchased new, Euro delivery) had HID Xenons and during the warranty period my Xenon on one side quit...ballast

03-14-2016, 06:35 PM	#1
cjsabataso Enlisted Member 3 Rep 45 Posts Drives: e92 335xi fbo Join Date: Apr 2015 Location: VT iTrader: (0)	Headlight question Hello, over the last couple weeks I've noticed my passenger side headlight has failed to turn on immediately when i turn my headlights on. Drivers side turns on, then theres a delay for like 5-15 seconds and then my passenger side turns on. Tonight it wouldn't turn on at all. Neither low beam or high beam works. Because of that, i assume I'm going to need to replace more than the bulbs? has anyone had this issue before ? Just looking for a little insight and wonder what parts ill need to replace? car is an 08 e92 335xi. Thanks in advance for any help
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03-14-2016, 06:40 PM	#2
Wilt Major 228 Rep 1,045 Posts Drives: 2011 328i Join Date: Mar 2015 Location: SF Bay area iTrader: (0)	Assumption: HID Xenon ????
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03-14-2016, 06:52 PM	#4
VTECaddict Where'd my VTEC go? 481 Rep 6,067 Posts Drives: 06 330i 6MT Join Date: Mar 2009 Location: Seattle, WA iTrader: (4)	Swap the bulbs between the two sides and see if the problem follows the bulb. If it does, it's the bulbs. If it stays on the same side, it could be the ballast. __________________ AW/Terra \| ZSP \| ZPP \| ZCW \| iDrive \| CA Mods: BC BR coilovers \| Blacklines \| M-tech rear \| dual exhaust \| M3 steering wheel \| BMW SSK \| ZHP shift knob \| High-kick CF spoiler \| NBT Retrofit M3 front control arms \| M3 rear guide rods \| Manzo rear toe and camber links \| Monroe rear shock mounts \| Varrstoen ES1 19x9.5+20 Front, 19x11+25 rear
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