Closing the windows and glass sunroof/panoramic glass sunroof

Driving with the glass sunroof/panoramic glass sunroof and windows open results in increased air resistance and raises fuel consumption.

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    Close the windows and glass sunroof
    Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

    Automatic deactivation
    In certain situations, the Automatic Engine Start/ Stop Function is deactivated automatically for safety reasons, such as when the driver is detected to be absent Malfunction The automatic eng ...

    Under the Hood
    The 135i's turbocharged inline-six makes 300 horsepower and 300 pounds-feet of torque. It works through a six-speed manual or BMW's seven-speed dual-clutch automatic. Either car hits 60 mph in abo ...