I guess it is not active. The initial lower plastic part, the black on the bottom of the spoiler, was not robust against humidity and freezing. This caused similar deformation in the first winter on our MY21 from November 20. The replacement part works now since 3 years without problems.
The dealer changed the affected part on warranty. In the meantime the new seat part starts to have the same problem again. Seems to be a weakness of the design and not an individual fault, unfortunately.
I finally received a feedback from Porsche :) Another software Update in the Porsche center should fix this: SW3823. I asked my Porsche center for an appointment for update.
I have the same problem after the update. Never had it in the two years before the update. I reported the problem to Porsche via shaking phone while in „My Porsche“ App.
I had the same problem and it also recovered by waiting. Directly following the (also in forum discussed) problem that range mode stuck at max. 90 km/h. This recovered another three days later. Hoping for update that fixes this software issues.
I also meant the real consumtion. My daily drive to work is a 50 km mix of highway and ordinary road. If I drive the same speed profile (max. 150km/h when no speed limit and slower if limited) I come to about 10% difference.
My experience is, that it increases the range by at least 10%?! When you look at the distrubution of power, in range mode you drive a FWD, while in „normal“ it is RWD (when you don’t Need Full power). I assumed that increases the efficiency?!
I had the same problem already two times. Each time for about a week, before it recovered without any action from my side. I‘m going to ask the dealer for a software update. We have a 2021 4s. Software version PCM is 3397. What version do you have?