The F1s are 15M+ !?! Is that remotely accurate?
As good a place as any...
Anyone wanna venture a guess on what these buttons do?
https://1drv.ms/i/s!AqwvoBt9ZBp2gfIvNSJ7lnUKxW0Xbg
No clue.
In what kind of car? The symbols make me think air circulation. The 'n' throws me though, making me think it's not a car from an English speaking market.
In a Sprinter.
The answer turns out to be a feature called ADR, which overrides the idle control with a user-settable number. I don't knw why "idle control override" is abbreviated ADR or why the button has an N on it. WTF?
That is... Something?
-Formerly Stabulator
I think the direct translation of "ADR" is something like Arbeit (work) Drehungs (rotations) Reglung (regulator), with n = number of rotations (per minute).
It's an adjustable high-idle switch. You'd switch it on when parked and running the AC (or other power consuming accessories), for example.
Whoomah!