2018 XC40

[juzzmee]

Since you've enabled the cornering lights, you should have the button to enable it.  Have you tested if the cornering lights function correctly? 
Enable the cornering lights from the center screen, turn on the headlights low beam and turn the steering wheel left and right. Left or right footlight should turn on as you are turning the steering wheel.  When you put the car in R, both of them should turn on. 

If the cornering lights does not function, Your CEM might be a medium or low variant that might not have the actual pins or the software.  Or you have a wiring problem. Led fog lights does not work with reversed polarity. 
If the cornering lights work but the fog lights button on left stalk does not work, your SWM does not passt the signal. 

How should i know or test if my car has the low or medium CEM? 
I retrofitted 360 and enabled via Orbit and it worked.
Does this have any correlation to the types of CEM i have?

My headlights are on auto and if i depress the fog light button in day time, the headlights come on (when it shouldn’t cause there’s light). And if I deactivate the fog light, the headlight goes off.
I’ve already the cornering light in the Center screen and enabled