Air vent control.
Improved aerodynamics and short cold-run phases: the air vents between the double kidneys and the radiator reduce consumption and emission levels from the moment you start driving.
Normally the air vents are kept closed and direct the air flow around the radiator to improve aerodynamics. When the radiator is no longer needed, the engine management system opens the vents.
The vents are also closed for cold starts. Engine oil and catalytic converters reach their operating temperature faster and the fuel-air mix burns more efficiently, which preserves the engine and significantly reduces emissions.
Not available in combination with BMW Night Vision.