DJ, I ran across this post searching a question for myself. Good information.
Fits discussion of fuel quality & spare parts.
The suggested, only use "orange" filter media, Stihl 0000-350-3518 Fuel Filter for Mtronic. (Filter cage marked production number, 0000 358 3401 C)
https://www.arboristsite.com/threads/stihl-fuel-filters-interchangeable.366806/
@huskihl -- Don’t use the old white and black filters in an M Tronic saw. They found that the original filters were allowing too many particles through and it was ruining the fuel solenoid. Use the orange filters.
The White filters are fine in the adjustable carb saws.
I suspect you might be confused on IntelliCarb. Is nothing smart or electronic about it. Just the old fashion adjustable carb. Stihl manner of adding customer confusion with a special branding name.
Mtronic: yes, has an electric fuel solenoid (electronics). So includes a unique Flywheel & Ignition Coil to generate power for the Mtronic solenoid operation.
IntelliCarb: is dumb system no electronics. Just simply employes a pressure feedback circuit between the Air Filter interior to Metering Diaphragm exterior side. Is only an Air Snorkel air passage. Allows fuel metering to compensate a minor amount if plugged / dirty Air Filter. Permits carb metering diaphragm to measure air filter restriction pressure rather than direct outside ambient air pressure. But, dumb system. Maintenance free.