hunter 408 Report post Posted May 29, 2020 (edited) I have a "standard" steering wheel in my e39(2 stage airbag), am going to swap in a 3 spoke M Sport wheel with multifunction. my build sheet says the car was prepped for multifunction, however, as a test to check this, i released the air bag (not fully removing) and plugged the MF panel in, no fuctions are working. Have i missed anything obvious here? I beleive the slip ring should be compatable from factory but only work if the wiring is benhind it... or Im guessing my build sheet is wrong?! edit; next steps is to try and source the retro fit wiring kit or enlist some help in making one based on the BMW diagrams, i'm an eletrical luddite Edited May 29, 2020 by hunter Quote Share this post Link to post Share on other sites
aja540i 1906 Report post Posted May 29, 2020 Might be a coding thing, I'm not sure but you may have to activate the option. Quote Share this post Link to post Share on other sites
hunter 408 Report post Posted May 29, 2020 (edited) 47 minutes ago, aja540i said: Might be a coding thing, I'm not sure but you may have to activate the option. My understanding is that no coding is needed, based on the attached. As even if adding wiring, no coding. So I think it's actually missing the wiring. Hmmm Cruise & MFSW retrofit.pdf Edited May 29, 2020 by hunter Quote Share this post Link to post Share on other sites
aja540i 1906 Report post Posted May 29, 2020 What did you plug the MF unit into ? Quote Share this post Link to post Share on other sites
hunter 408 Report post Posted May 29, 2020 Into the clock spring behind the airbag. There is a female port for it. Same as other clock springs. Has 3 ports. Left is blank, middle is airbag right is mf Quote Share this post Link to post Share on other sites
Young Thrash Driver 1020 Report post Posted May 31, 2020 What is your build date, and which of the M-sport wheels are you trying to fit? Also is the new steering wheel known to be working. Quote Share this post Link to post Share on other sites
hunter 408 Report post Posted May 31, 2020 4 hours ago, Young Thrash Driver said: What is your build date, and which of the M-sport wheels are you trying to fit? Also is the new steering wheel known to be working. My car is a 2001 build date, both new and old wheels have dual stage airbags New wheel is from a 2002 m3 as attached. It was working when removed from the car. I suspect lack of wiring but will do some further testing, if the pins are working in the slip ring, I should be able to get a multimeter reading off it. Quote Share this post Link to post Share on other sites
hqstu 780 Report post Posted May 31, 2020 Just try not to spit the dummy on this job... Quote Share this post Link to post Share on other sites
Young Thrash Driver 1020 Report post Posted May 31, 2020 Does the car not currently have a multifunction steering wheel installed? I have "S710 M Sports steering wheel, multifunction" off your build sheet in front of me. Pass me that dummy, Stu... Quote Share this post Link to post Share on other sites
hunter 408 Report post Posted May 31, 2020 (edited) Hi Colin, no it doesnt mate, it's odd that it on build sheet but not in the car, hence my thinking it already wired.....i have the build sheet also another thing on the build sheet that isnt what i have currently is the wheels, the BS says 0788 LA wheel, but the car has the factory option Style 42's that i am told have been on the car since new, and it says provisions for CD changer but this is actually fully installed i'll check fuses today and also try to source another mf panel for testing @hqstu what is this dummy you speak of Edited May 31, 2020 by hunter Quote Share this post Link to post Share on other sites
WYZEUP 283 Report post Posted June 2, 2020 I would check wiring to the dme and usual wire into the light switch, i dont believe they are plug and plug, i am looking at doing the same for my e46 and even though they are wired it does still look like you need to do a little bit of wiring to get it all to work. Quote Share this post Link to post Share on other sites
hunter 408 Report post Posted June 2, 2020 Yup, my e46 was the same when I did mf on that too mate. Quote Share this post Link to post Share on other sites
hunter 408 Report post Posted June 13, 2020 this week i removed the lower part of the steering column cover, there is only 6 wires into the Green plug on the slip ring. if the MF wiring is installed there would be 9, so that all good. to prepare for this i have now ordered the e46 MF retro fit loom, its the same as the e39 one aside from the colors of 2 of the wires. and is available, unlike the "official" e39 one. ive also used this thread to ordrr bit for the loom that needs to be made for the paddles https://forum.e46fanatics.com/showthread.php?t=895897&=1 Quote Share this post Link to post Share on other sites
