How to Open the Rear Section of BMW's Split Sunroof?

[SanIsabelle]

Press the sunroof switch on the roof, and the front automatic sunroof and rear sunshade will open. Press the switch again, and the sunroof will fully open. When the sunroof is open, a negative pressure zone forms outside the car. Due to the difference in air pressure inside and outside the vehicle, the polluted air inside the car is extracted, achieving the purpose of ventilation and keeping the cabin air fresh. More details are as follows: 1. Types of Split Sunroofs: Split sunroofs can be further divided into dual sunroofs and spliced sunroofs. The dual sunroof panoramic sunroof is essentially a regular sunroof with an additional non-opening sunroof to increase light penetration. The spliced panoramic sunroof consists of two overlapping sunroofs at the front and rear, but the overlapping area is small, resembling a single unit. 2. BMW 5 Series Sunroof Initialization Method: Raise the sunroof to the top and continue holding the switch for about 25 seconds. The sunroof will then operate automatically. Keep holding until the sunroof stops automatically, indicating successful initialization. Due to its large area, the sunroof is more effective than those in regular cars at maintaining fresh air inside the cabin and quickly removing odors. At high speeds, it is more effective than side windows at reducing interior noise.