Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > Regional Forums > Australia Forum
User Name
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management

LinkBack Thread Tools Display Modes
Old 07-28-2014, 02:31 AM
HWR's Avatar
HWR HWR is offline
Join Date: Aug 2013
Location: Australia
Posts: 6
HWR is on a distinguished road
Left Hand Low Beam Globe keeps blowing (Halogen)

Hi Everyone,

I'd appreciate some ideas on a persistent problem my X5 is having.
It's a 2005 3.0D Right Hand Drive.

The Left headlight is continuously failing, the vehicle is fitted with Halogen globes as standard.

A few months after purchasing the vehicle the LH Low Beam globe failed. I replaced the globe with another Halogen but the replacement blew about 4 months later.

Unsatisfied with the light out put when the second globe failed I decided to install Xenon HID kits to the lights. This was about 12 months ago

Subsequently I have had 3 Ballasts fail in the LH Low Beam, the last ballast was connected to battery power via a relay that was triggered from the factory headlight wiring.

After the third ballast failed a few months ago I went back to Halogen globes in the Low Beam lights out of frustration. The globes that I installed into the Low Beams were both New.

The LH Low Beam globe has failed again today.

This makes a total of 3 Halogen Globes and 3 HID Ballasts in the LH Low Beam that have all failed in under 2 years.

The RH Low Beam and Both High Beam lights have been working perfectly with no problems (the high beam still have the HID kits that were installed when I first did the upgrade 12 months ago).

Out of interest, the vehicles battery was replaced about 4 months ago and the alternator output is correct.

There is clearly a problem in the LH Low Beam somewhere but I'm at a loss as to what and where the fault could be.

Has anyone had a similar problem and what did it turn out to be?

Any assistance would be greatly appreciated.
Reply With Quote

Sponsored Links

Old 08-04-2014, 09:03 PM
jdd jdd is offline
Join Date: May 2011
Location: Melbourne, Australia
Posts: 71
jdd is on a distinguished road
As an electronics engineer, there can be a number of causes for this type of problem.
The most common cause is usually the light socket itself, but it can also be caused by a bad relay, or bad wiring/connectors to the light socket, or a bad/intermittent earth.
Iím not sure how you connected in the HID units but obviously the fault was still present during that time. If you used a separate relay as you mention, you can probably discount the original relay.
Was the original light socket used when the HID units were installed? If not, this would tend to point towards a bad/intermittent earth. If it was used I would point toward this as the most likely culprit.
These sorts of problems can be very difficult to find, particularly as intermittent as this one seems.
Sometimes it is quicker, and cheaper if youíre having to pay somebody to do the work, just to replace all the possible components in one go.
Reply With Quote


globe, halogen, headlight, low beam

Thread Tools
Display Modes

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 01:47 PM.
vBulletin, Copyright 2020, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.