BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      10-13-2015, 09:29 PM   #1
135iRick
Private
6
Rep
50
Posts

Drives: Black 2011 135i
Join Date: Jan 2014
Location: Atlanta

iTrader: (0)

How do you put exterior lights in and integrate them to the headlight controls?

Hey everyone. I was considering doing some fiber optic or LED lights in my front bumper at the intake for the brake cooling ducts. I would like them to switch on with the headlights or parking lights. I have adaptive xenon headlights. Is there anything I need to know about how things are connected to the computer and the headlights or can I just tap off the +12 and negative? Anywhere I can find a wiring diagram?
Appreciate 0
      10-14-2015, 09:15 PM   #2
spain4065
Second Lieutenant
United_States
8
Rep
278
Posts

Drives: EM1 and 08 135i
Join Date: Sep 2012
Location: DC/MD

iTrader: (1)

Interested as well...put on fogs and want to control them with oem switch as opposes to external switch.
Bump.
Appreciate 0
      10-14-2015, 10:50 PM   #3
1AddictsAnonymous
Captain
1AddictsAnonymous's Avatar
Canada
104
Rep
768
Posts

Drives: 08 135i M Sport 6MT
Join Date: Feb 2013
Location: Edmonton

iTrader: (2)

Garage List
2008 BMW 135i  [5.00]
It's not that difficult, just tap into the circuit you want the lights controlled with - i.e. Park lights, headlights.

You could do it one of two ways;

1. Parallel circuit using the power and ground supply directly off the headlight harness.

2. Use a relay tapped into the headlight harness to control the light. Relays are basically devices which allow a low current circuit to control a high current one. It effectively isolates the two via an electromagnet powered switch. Your LEDs would then be run directly off the battery, either a constant 12v or an ignition or accessory 12v circuit. You could tap these at the fuse box.

Personally I would opt for a relay as the electromagnet requires a very small load and this way you shouldn't get any computer related errors showing up.
__________________
2008 Sedona Red 135i ///M Sport Year One of the 1
LCI Headlights | LCI Blacklines | LUX V5 | Carbon Interior Trim | Custom Red Interior Stitching | Alarm Retrofit | Flat Black Grilles | Performance Spoiler Rep
JB4 | ER Charge Pipe | BMW Performance Exhaust | E46 M3 Transmission Mounts | BMS OCC

Appreciate 0
      10-19-2015, 05:33 PM   #4
135iRick
Private
6
Rep
50
Posts

Drives: Black 2011 135i
Join Date: Jan 2014
Location: Atlanta

iTrader: (0)

Ok cool. I didn't know how angry the computer would get if I decided to do that. Anyone have a wiring diagram for the headlights or know where to find one?
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 -4. The time now is 12:52 PM.




1addicts
1addicts
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
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