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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY - retrofit paddle shifters



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      07-21-2019, 07:54 PM   #199
gamesfrager
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Quote:
Originally Posted by Greg555 View Post
What do I do if the 6 pin connector at the clock spring has all the wires in it?

Looks like both paddles go thru the switches.

Steering wheel was out of 09 335
Go back and read my post on the second part. I mention what to do with pin #2 and #4.
Read it multiple time, until you memorize it
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      09-19-2019, 01:06 AM   #200
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Originally Posted by gamesfrager View Post
Alright. Thanks to all the info here, I was able to finish this early this week.
Haven't had the chance to post the steps I took.

The bottom line, regardless if you bought a whole steering wheel with paddles and multi function buttons from a wreck etc. or if you collected parts and put them together; you will need to modify the steering wheel wiring.
It's not just the modification to the plug at the bottom of the clockspring that needs to be modified. Again, the steering wheel wiring needs to be adjusted as it was posted by Zaphood earlier. And no need for $100 USD harness, unless you don't want to cut any wires.

So here it is:
  1. Remove front trim. To do so, remove the three torx screws in the back
  2. Once removed you will have easy access to each paddle shifter plug that connects to each multi function button
  3. Grab a towel/microfiber towel and pliers so you don't damage the plug
  4. Remove the paddle plugs from the multi function buttons
  5. Remove pin #6 on the multi function plug that connects to the clockspring. I only needed to remove this one
  6. You can now follow the diagram for the wiring, but here is the description:
  7. Each paddle plug has 3 pins, forget pin #1
  8. Make a connection from one paddle pin #2 to the other paddle #2 and connect another one in the middle -or something. basically a T wiring (sorry not sure what it's called)
  9. Connect this to the airbag ground
  10. Do the same T wiring to pin #3 on the paddles and connect this to pin #6 on the multi function plug
  11. This wiring concludes the part on the steering wheel

Next is the connection from the clockspring to the gear shifter
  1. Take out the plug at the bottom of the clockspring
  2. Find pins #2 & #4
  3. If they are filled; then remove them (I don't like cutting if I can avoid it)
  4. Insert around 1 meter long wire in each pin (2 & 4)
  5. Tap one to the purple wire on the shifter harness and the other to the blue one

That's it. Huge thanks to everyone for their posts, comments, and help.
I'm confused as here your saying you just need to tap into #6 on the multi switch connector but then in earlier posts they say you need to tap into #4 and #6? Furthermore I've also read some people saying to tap into #3 and #6.....? Can someone please clarify which is correct????
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      09-19-2019, 04:12 PM   #201
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Quote:
Originally Posted by Mrhoe View Post
I'm confused as here your saying you just need to tap into #6 on the multi switch connector but then in earlier posts they say you need to tap into #4 and #6? Furthermore I've also read some people saying to tap into #3 and #6.....? Can someone please clarify which is correct????
I believe if you do one other pin on the multifunction connector going into the clockspring; then each paddle will only do one thing, either shifts up or down regardless if you push or pull.

Right now for me; when I pull on the right; it shifts up, and then I push on the right it shifts down. And the reverse for left.

I still don't know why I can't shift down while driving, but I can if I'm at stand still in D.
Could it be my GM transmission? I doubt, might connect to the other pin and see what happens.

Last edited by gamesfrager; 09-29-2019 at 03:23 AM..
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      10-23-2019, 12:32 PM   #202
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Sooo, if the lock harness on the back of the clock spring HAS the 2 yellow wires, what do they go to? I donít want to remove them and lose something. OR does it mean Iím already pre wired?
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