Feature(s) Questions
Same question on the "tunnel mode" (press and hold air circulation button button to close sun roof and windows)
I am in the US and cant get either to work. (2017 E300 4Matic) Does it need to be enabled at dealer?
Thanks!
Its now worked every attempt both open/close when outside the car... Strange but hey its working....
Can even press and hold the lock senor on door handle to close windows and sunroof.
Last edited by jboomznh; Mar 30, 2017 at 01:39 PM.









