Sorry for the slow reply didn't see it! I measured if from the 4 points on the picture (excuse the poor lines) but distance 1 and 2 are 15cm and 3 and 4 are 17.5cm. If that's what you wanted?
I've had the same problem (keyless entry) the windows would all open a few cms and the sunroof would pop up. I believe mine was to do with auto lock coding via obd11. When multiple doors were being opened and close it seemed to do it. Ive taken it off and hasnt hapoened since.
Got mine from Nottingham and it went to grimsby....you tracking ships yet😂. Mine was sat 8 days at emden then once it hit the UK it was at the dealers in a few days