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 01-11-2011, 04:29 PM   #1
dansxtreme
Registered User
 
Join Date: Nov 2008
Location: Caledon East, ON, Canada
Posts: 35
My Ride: 2000 Bmw M3 Clone
Retrofit 2003 LED Tails to 2000 using same LCM

Gentlemen,

I am in the process of installing/ modifying a set of LED taillights out of a 2003 E46 convertible to replace my standard translucent tails in my 2000 E46 convertible. I am hoping to use resisitor to burn off the energy so that I do not have to purchase a new LCM.

Has anybody read about this? I am having problems finding info... There also seems to be a harness which can be purchased, but would this be required in this case?

Dan
Attached Thumbnails
Click image for larger version

Name:	IMG_2067.jpg
Views:	71
Size:	133.5 KB
ID:	389431   Click image for larger version

Name:	IMG_2132.jpg
Views:	61
Size:	121.8 KB
ID:	389432  
dansxtreme is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 01-13-2011, 11:57 AM   #2
dansxtreme
Registered User
 
Join Date: Nov 2008
Location: Caledon East, ON, Canada
Posts: 35
My Ride: 2000 Bmw M3 Clone
Bump- Nobody's done this?
dansxtreme is offline   Reply With Quote
Old 01-13-2011, 01:43 PM   #3
infinite012
Registered User
 
Join Date: Jul 2004
Location: Richmond, VA
Posts: 1,239
My Ride: White '08 STI
Seems pretty straight forward. Find a +12V and ground that activates with the parking lights, turn signals and brakes.
infinite012 is offline   Reply With Quote
Old 01-14-2011, 04:48 AM   #4
turbo_f22_pilot
Registered User
 
Join Date: Dec 2009
Location: Mid-Atlantic Region
Posts: 1,193
My Ride: 2 pedals - 2 paddles
It's possible. You just have to present the right load to the LCZ (LCM) and whola, no more light out warnings unless there really is a problem.

You'll have to keep increasing the resistance until you find the required level (load) to stop the warning from triggering.
__________________
In order to finish FIRST, you MUST first FINISH !

Joy is future proof
Get your "M" on . . .
Reading is FundaM3ntal




CAR:
2003 TIAG Coupe / Blk Interior / SMG / HK Premium
MODS:
EU-CSL Coded / Macht Schnell intake / OEM CSL Wheels / OEM CSL Diffuser / Dinan Exhaust
Full LED Conversion / HID fog / Aurora AE / RE RTAB FCAB

BMWCCA NCC
turbo_f22_pilot is offline   Reply With Quote
Old 01-14-2011, 12:11 PM   #5
dansxtreme
Registered User
 
Join Date: Nov 2008
Location: Caledon East, ON, Canada
Posts: 35
My Ride: 2000 Bmw M3 Clone
I believe connecting 12 v directly to the led board on the light would burn them out. This is why resistors are installed before the board? If I can get this working, then I can look at how to get rid of the lights on the cluster. Most likely by buying and reflashing a LCM.

Dan
dansxtreme is offline   Reply With Quote
Old 01-17-2011, 07:58 PM   #6
dansxtreme
Registered User
 
Join Date: Nov 2008
Location: Caledon East, ON, Canada
Posts: 35
My Ride: 2000 Bmw M3 Clone
OKay guys I think I had this wrong. After some research I found that I need the adapter from the halogen connection to the LED connection (Part # 61120153650). With this alone I believe they led lights will work but present the tamperdot on the cluster. This can be removed by getting a new LCM or installing resistors before the old lcm.\

Does this sound correct?
dansxtreme is offline   Reply With Quote
Old 01-17-2011, 08:03 PM   #7
TerraPhantm
Registered User
 
Join Date: Feb 2008
Location: Mountain Top
Posts: 5,947
My Ride: 2005 M3 Coupe
Quote:
Originally Posted by dansxtreme View Post
OKay guys I think I had this wrong. After some research I found that I need the adapter from the halogen connection to the LED connection (Part # 61120153650). With this alone I believe they led lights will work but present the tamperdot on the cluster. This can be removed by getting a new LCM or installing resistors before the old lcm.\

Does this sound correct?
With that adapter the LEDs will work, but there will be lights-out warnings. You don't get a tamper dot unless the the LCM is replaced with one that's tied to another car.

In theory, you can remove the lights-out warnings w/ the appropriate resistors. Officially, you're supposed to upgrade the LCM to one that supports LEDs
__________________
TerraPhantm is offline   Reply With Quote
Old 01-17-2011, 08:16 PM   #8
dansxtreme
Registered User
 
Join Date: Nov 2008
Location: Caledon East, ON, Canada
Posts: 35
My Ride: 2000 Bmw M3 Clone
When the new lcm is reflashed, is there an input for the odometer reading? I wouldnt want the odometer reading to be higher than what it currently reads if the new lcm is higher?
dansxtreme is offline   Reply With Quote
Old 01-17-2011, 08:39 PM   #9
TerraPhantm
Registered User
 
Join Date: Feb 2008
Location: Mountain Top
Posts: 5,947
My Ride: 2005 M3 Coupe
Quote:
Originally Posted by dansxtreme View Post
When the new lcm is reflashed, is there an input for the odometer reading? I wouldnt want the odometer reading to be higher than what it currently reads if the new lcm is higher?
If the VINs match, the LCM will pull its mileage from the instrument cluster. If the VINs don't match, no mileage info is altered (but there'd be a tamper dot).
__________________
TerraPhantm is offline   Reply With Quote
Old 01-19-2011, 06:14 AM   #10
MitchSF
Registered User
 
Join Date: Jul 2007
Location: Coral Springs, FL
Posts: 279
My Ride: 11 M3 DCT
Send a message via Skype™ to MitchSF
Quote:
Originally Posted by TerraPhantm View Post
With that adapter the LEDs will work, but there will be lights-out warnings. You don't get a tamper dot unless the the LCM is replaced with one that's tied to another car.

In theory, you can remove the lights-out warnings w/ the appropriate resistors. Officially, you're supposed to upgrade the LCM to one that supports LEDs
Yes, and you want to use the highest value resistors that will eliminate the warnings. The higher the value, the less heat will be generated. The LEDs will not burn out with any resistor value, but using a value that is too low will generate too much heat. A very low value, maybe 5 ohms or less approaching a short circuit, could possibly damage the LCM or cause it to shut down if it has a protection circuit.

If you're looking for the lowest aggravation factor, get a new LCM or find someone who can recode a newer, used LCM for you.
MitchSF is offline   Reply With Quote
Old 01-25-2011, 02:57 PM   #11
mosill
Registered User
 
Join Date: Jan 2008
Location: Dallas, TX
Posts: 1,016
My Ride: E46 M3
Send a message via AIM to mosill
Perhaps you could build a test set up with a like a 50K pot and adjust from 50k down till you find the right resistance. Then measure the resistance on the pot with a DMM and just wire in a real resistor at that value.
__________________

mosill 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 07:01 AM.


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