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



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      08-02-2013, 03:42 AM   #1
tobypic
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DIY: DCT paddle shifters retrofit for LCI paddle shifters

I am making this DIY because there is no information about it and I don't want other people will have the same problem as I had.

If your car is 2011 LCI and you have planning to add DCT paddle on your car, you need to add resistors. Here is quote from wanlong:

Quote:
Originally Posted by wanlong View Post
it wont work, and your DS should not be working as well.

for 2010 and before cars, ssg/dct paddles are just completing a circuit to ground in order to complete shift. Thats why by removing the resistors from lci paddles, they have the same functionality as ssg/dct paddles and will work on 2010 and before cars.

for 2011 cars, lci paddles are not connecting to grand anymore (no pin#2), and resistors are connecting between pin#1 and #3.

To make the dct paddles work on 2011 cars, I think the missing resistors need to add back to dct paddles in order to have the same functionality as lci paddles. I am working on add resistors back, will report after I finished.

This is not really difficult to do, so here is information how to make.



DISCLAIMER
It's your car, not mine.

PARTS

Total Kit Cost
$less $100 incl resistors, Soldering Tool Kit and heat shrink tubing

Part 1 - Resistors
- SIDE
6.2k ohm:
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

348 ohm:
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

+ SIDE
4.99k ohm:
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1

1.18k ohm:
http://www.amazon.com/gp/product/B00...?ie=UTF8&psc=1



DIAGRAM SKETCH




Add resistors as diagram sketch, it works without any issues.

I would like to put some photos how I add resistors on wires, but I am writing it after I finished to put DCT paddle on my car. I will take it off tomorrow to add LED paddle, so I will update it ASAP.
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      08-23-2013, 11:22 AM   #2
kenneymac
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great write-up hopefully it works on my setup!
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      02-27-2016, 03:00 PM   #3
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I can't see the diagram skteches.
Could you re-upload them?
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      03-04-2016, 08:22 PM   #4
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For those who might wanna try this in the future.
I can confirm my dct paddles are working perfectly on my lci.
Crappy soldering but you get the idea.



BOM:

2x 61138377072
2x 61136931929
4x 61130005197
4x 61130005198

6.2K ohm resistor
348 ohm resistor (0.3KΩ is incorrect. 348Ω is the correct value)
4.99K ohm resistor
1.18K ohm resistor

heatshrink

Thanks to remlemasi.
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