2010 2011 BMW 5 Series Forum F10
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
 

2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums Regional Forums UK F10 530d SE Bi-xenon headlights
Post Reply
 
Thread Tools Search this Thread
      08-29-2016, 06:17 PM   #1
Mac B
Private
England
7
Rep
69
Posts

Drives: 520D SE saloon (G30)
Join Date: Jun 2010
Location: Yorkshire

iTrader: (0)

F10 530d SE Bi-xenon headlights

I was surprised to discover that of the 4 headlights on my car, only the outer 2 ever illuminate - these provide both dipped and main beam, whilst the inner two seem merely to serve as mounts for the running lights.
Is this normal? If so, it seems a waste!
Appreciate 0
      08-30-2016, 01:58 AM   #2
xenon
Major General
xenon's Avatar
England
1385
Rep
8,061
Posts

Drives: 2021 G21 330i M-Sport
Join Date: Jun 2008
Location: Coventry

iTrader: (0)

Yes it's normal for non-adaptive lights. If you have adaptive lights then the inner lens is used for the cornering light.
__________________
Ian
Current: 2021 G21 330i M-Sport
Previous: 2018 A6 Avant S-Line MMI+, 2014 F31 320d M-Sport, 2013 F10 520d M-Sport, 2011 F10 530d M-Sport, 2008 320i M-Sport Coupe, 2002 325i, 2001 318i valvetronic, 1998 318i, 1996 525i, 1990 Porsche 944S2
Appreciate 0
      08-30-2016, 01:46 PM   #3
Martin2C
Second Lieutenant
44
Rep
226
Posts

Drives: 2017 750i M Sport
Join Date: Apr 2016
Location: Northamptonshire

iTrader: (0)

Yes, Bi-Xenon means it does both main and dipped with the same bulb, basically the top of the beam is cut off to give you dipped. That's the case with most Xenon headlights. Some cars have an additional halogen main beam unit (my Porsche does) which makes a decent difference.

The Adaptive LEDs use all four headlight units, the top half of all 4 are lit on dipped beam then various other LEDs come on in the lower part of the units (plus side) when you switch to main beam or auto high beam (even better)
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 04:21 AM.




5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST