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///M Cruise Control - Myths & Legends Busted - Retrofit DIY HOW TO!!

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ed80
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///M Cruise Control - Myths & Legends Busted - Retrofit DIY HOW TO!!

Post by ed80 » Thu Jan 30, 2025 4:56 pm

I am almost done with fitting. I have the LCM end of the wiring done, and have fished a bit of 3d print filament from under the glove box to the ECU box. The only thing left to do is route the blue wire from the steering column to the passenger footwell, and this is where I am stumped.

Have tried a number of different routes, but cannot find a way to get from one side to the other. Any tips or tricks for achieving this? I have not been able to remove the glovebox due to a stripped screw (previous owner :headbang:), so I don't have great access on the passenger side.

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///M Cruise Control - Myths & Legends Busted - Retrofit DIY HOW TO!!

Post by enuff_zed » Thu Jan 30, 2025 5:24 pm

ed80 wrote: Thu Jan 30, 2025 4:56 pm Have tried a number of different routes, but cannot find a way to get from one side to the other. Any tips or tricks for achieving this?
Have you got the radio out?
You may be able to get your fingers in there to pass the wire from one side to the other.
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///M Cruise Control - Myths & Legends Busted - Retrofit DIY HOW TO!!

Post by Scooba_Steve » Thu Jan 30, 2025 5:59 pm

ed80 wrote: Thu Jan 30, 2025 4:56 pm Have tried a number of different routes, but cannot find a way to get from one side to the other. Any tips or tricks for achieving this? I have not been able to remove the glovebox due to a stripped screw (previous owner ), so I don't have great access on the passenger side.
Just take out the footwell trim. I can't remember if I had the glovebox out or not, maybe to make access easier, but I don't think it's required. There is a big wiring loom going across the car from left to right, you can secure it to that.
3.0si Sport: F10 Illuminated ZHP, Retrofit Cruise, OE Stubby, Gaptech RCH+, Kenwood BT73DAB + Handsfree, HIDs, LED Sidelights, OE LED Number Plate Lights, Custom LED strip bootlight.

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///M Cruise Control - Myths & Legends Busted - Retrofit DIY HOW TO!!

Post by Usel » Thu Jan 30, 2025 6:27 pm

Underneath the heater controls is a panel. Lever it out with a plastic trim tool. Probably easier than removing the radio.

Tbh you want the footwell trims out. There is acres of space to pass a wire through then. As above I think you want the glove box out.

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///M Cruise Control - Myths & Legends Busted - Retrofit DIY HOW TO!!

Post by Scooba_Steve » Thu Jan 30, 2025 8:53 pm

To route into the engine bay tie a nut or similar to some string and drop it down into the footwell via the electronics box. Tape the wire to it and pull back through.
3.0si Sport: F10 Illuminated ZHP, Retrofit Cruise, OE Stubby, Gaptech RCH+, Kenwood BT73DAB + Handsfree, HIDs, LED Sidelights, OE LED Number Plate Lights, Custom LED strip bootlight.

ed80
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///M Cruise Control - Myths & Legends Busted - Retrofit DIY HOW TO!!

Post by ed80 » Fri Jan 31, 2025 1:07 pm

All sorted, thanks everyone for your help! Just went out for a run and cruise is working. Not sure why BMW made the stalk work differently from every other cruise stalk out there, but I figured it out :driving:

Btw, I found this image on google's cache which helped a lot when finding the right wire to connect to in the ECU box:
images.jpeg
images.jpeg (12.84 KiB) Viewed 3188 times

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