Transmission Fluid Temp?

[eacmen]

SMG owner here. I know the SMG pump has a temp sensor but is there an actual transmission fluid temp sensor? If so is it available on the canbus? If not does anyone know if there is a port to attach an aftermarket one?

[BCEXP]

I could be wrong, but I doubt the trans itself has a temp sensor. Most likely not since it's still technically a manual gear box. There's no friction or hydraulics (which creates heat) involved inside the actual gear box.

[Ryan_R]

The SMG gearboxes have a fluid temp sensor. It’s the 2 pin sensor right next to the 3 pin input shaft speed sensor. The reverse switch is the 2 pin switch located towards the rear of the gearbox.

[nickpiper12]

SMG broadcasts over DBUS/K-Line. You'd need to find the message over K-Line that the SMG DME needs to stream those values. As far as I know, that's the only way to do it.

I had gearbox temp, hydraulic fluid temp, as well as accumulator pressure setup on my AIM.

[eacmen]

SMG broadcasts over DBUS/K-Line. You'd need to find the message over K-Line that the SMG DME needs to stream those values. As far as I know, that's the only way to do it.

I had gearbox temp, hydraulic fluid temp, as well as accumulator pressure setup on my AIM.

Does AIM know how to talk to kbus directly? Or are you using a device to rebroadcast the data to canbus?

[Mike RT4]

This is how I did mine:

https://nam3forum.com/forums/forum/main-forum/member-build-journals/201449-2003-uk-m3-csl/page3

[BCEXP]

Whoops, OP, disregard. I am 100% wrong. I didn't know SMG gearboxes have a temp sensor. Sorry LOL