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 > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

 
 
Thread Tools Search this Thread Rating: Thread Rating: 2 votes, 5.00 average. Display Modes
Prev Previous Post   Next Post Next
Old 03-31-2012, 12:38 PM   #1
redbull 325is
Registered User
 
Join Date: Jul 2006
Location: NC
Posts: 702
My Ride: 325xit/6
Send a message via AIM to redbull 325is
DIY: PADDLE SHIFTER MOD: Pull both paddles for sport mode

Hey Guys,
I installed m3 smg paddle shifters in my steptronic wagon a few months ago using this link (thanks for that diy!) but I wanted to be able to engage sport mode by pulling back both paddle shifters at the same time momentarily.

To achieve this I had to combine both paddle signals into one signal to activate latching relay.

To combine both paddle inputs into one output. I used a standard 4 prong relay. I wired it as such

pin 85 : tap into right paddle output
pin 30 : tap into left paddle output
pin 86 : switched power (I found green wire going to switches above my ashtray that was switched power, double check!)
pin 87: output to latched relay

the logic behind this that one paddle would activate the relay, the other would ground out the signal going to the latched relay, effectively only working when both are pulled at the same time.

-Theoretically you could swap pin 87 for 87a on a 5 prong relay so that the car is in sport mode when you first start up and normal mode when you hit both paddles, however I haven't tested this.

To make the car go into sport mode and stay there, you need a latching relay which effectively close and open each time it receives an input. To accomplish this I used a DEI 611T programmable switch, other options may be available but this was cheap enough and would do the job well. I picked mine up on ebay for $20 shipped.

The 611t has 5 wires
red : switched power
black: ground
green: input from relay (pin 87)
yellow: ground
brown: goes to 4 pin wiring harness that you tap into for the paddle shifters (one wire for each paddle, one ground, tap into the remaining wire)




I really like this mod as it allows me to drive regularly in drive and pop her into the gear I want to in case I see a fun corner coming up without my hands leaving the steering wheel
__________________
Royal Elite Club of 6 Speed Tourings - founder

Last edited by redbull 325is; 04-01-2012 at 11:51 AM.
redbull 325is is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
 

Tags
diy, e46 paddle shifter, sport mode

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 11:58 AM.


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