Anyone encounter this behavior ?
When I pull the red handle up in order to have hot air in the cabin, I hear a quite strong whistling sound.
Hot air is coming in the cabin, no problem about that.
What I suspect is they haven't reinstalled the heater silencer tubes out of the inner sills during the complete restoration of the car (back in 2016/2017).
But, regarding the quality of that restoration it would be surprising if they forgot to put the silencers back in.
Could it be something else before I open the sills :eek::D ?