Getting wires into the ECU box?

NoQuarter

Major
Nov 24, 2017
1,662
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Indiana, USA
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Z4 35is, 535xi, X5 35i
How do you get wires into/through the ECU box?

I have some that just pass through as it is a great entry point through the firewall into the under-dash area. I also have some that stay in the box for things like the flex-fuel module.

Currently, I just pass them over the top, and allow them to squish down a bit when I screw the top back on but I am looking for something better. I could cut the existing rubber grommets but have avoided that so far.

Share your ideas/pics

Been looking at various grommets, firewall pass through style, water-proof bulkhead type fittings, etc.

What do you think?
 

screaminfast

Sergeant
Feb 18, 2017
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Rochester NY
mikecentola.com
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07 SG/CR 335i / 17 X6 x35i
These questions exactly are what spawned my other thread about moving the DME/JB4. My original idea was if I made an aluminum DME Box, I would use the round milspec connections to bring wires in and out, etc.
 

Torgus

Brigadier General
Nov 6, 2016
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Boston
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ACF 6466 E92 + METH
I just poke them through the existing grommet iirc but the best way would be to drill and install your own grommets as needed:

AUTH-008976-2.jpg


Quick, easy, and VERY effective. Just use the right size/type.
 

Torgus

Brigadier General
Nov 6, 2016
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Boston
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