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      11-20-2016, 09:06 PM   #1
Vetracr
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Shift light

I am trying to figure out how to connect a shift light on a 3.0 E89 Z4. Has anyone done this and if so how? There is a a way to program this feature on an M3 but not on a Z4. TIA.
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      11-21-2016, 12:20 PM   #2
Vetracr
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After doing some homework I found out BMW coils are 3 wire:

1) switched +12V
2) Trigger signal
3) Ground

What I need to know is which coil connector wire, color?? is the signal wire So I can tap No 1 cylinder trigger signal for shift light. My car is a 2010 3.0 N52B30A so any other BMW with same engine should have same coil connector configuration.
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      11-21-2016, 01:54 PM   #3
NoQuarter
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Quote:
Originally Posted by Vetracr View Post
After doing some homework I found out BMW coils are 3 wire:

1) switched +12V
2) Trigger signal
3) Ground

What I need to know is which coil connector wire, color?? is the signal wire So I can tap No 1 cylinder trigger signal for shift light. My car is a 2010 3.0 N52B30A so any other BMW with same engine should have same coil connector configuration.
Ground should be easy enough for you to figure out
Switched +12 I imagine comes on with the ignition?
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      11-22-2016, 07:16 PM   #4
Vetracr
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Did some more homework. Ground wire is brown, +12V is orange and signal/ trigger wire on cylinder one is white.

Another question, where is good place to tap switched 12V under dash for shift light?
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