E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Lighting Forum

Lighting Forum
Angel Eyes, DDEs, lighted rings, Clear Turn Signals, LEDs, Xenon, HID, or Bi-Xenon. If it lights up and you want to discuss it, post here!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 11-29-2012, 11:31 AM   #1
Bim3Por911
Registered User
 
Join Date: Dec 2010
Location: Cleveland, OH
Posts: 75
My Ride: 328i & 911T
Xenon Lighting Troubleshooting

I've got a typical xenon headlight issue. Driver's side goes dark after a few minutes of driving. I cycle the headlight switch to off and on again and the light comes back on.

My car is not set up for DRLs so I figure I've got at most 1,200 hours on the bulbs. They don't flicker and the color is blue white as normal. Bulb life I hear is around 2,000 hours and I'm not there yet.

The most likely culprit would be the ballast located under the gray plastic cover behind the headlight. I've read that the unit can be disassembled on the bench and cleaned. Some threads here suggest that bad grounds or corrosion can cause the headlights to cycle on and off. I can check for corrosion in the front turn signal connectors and a ground for the tail-lights in the trunk (where is it in the trunk?).

My approach is to first check the connections, then to swap the ballast side to side and see if the problem moves to the passenger side. If it does, then I'll remove and open the ballast and clean it. If the problem still persists I'll replace the ballast.

Do I need to remove the headlights to take out the ballast? Can I leave them in and take out the airbox and / or washer fluid reservoir? What's the typical procedure for removal of the ballast?

Thx.
__________________
Fahren in seiner Äußerst Form
Bim3Por911 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 11-29-2012, 10:53 PM   #2
sillieidiot
Registered User
 
Join Date: Sep 2004
Location: the OC
Posts: 43,904
My Ride: '06 AW 330ci
Send a message via AIM to sillieidiot
you need to remove the headlights to get to it. then it's held on by 3 torx screws. i would still swap the bulbs anyways. bulbs can prematurely fail as well. i wouldn't rule anything out based on assumptions.
__________________
I like to reply to threads with 0 posts




Have a lighting problem? Read this first:
Lighting-related Troubleshooting Guide
sillieidiot is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 08:06 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use