Aerodynamic optimisation of underside panelling

As the excellent drag coefficient (cd = 0.26) would suggest, the aerodynamics of the new BMW 3-Series have been intensively honed in a state-of-the-art wind tunnel. The optimised aerodynamics also have benefits for noise reduction and roadholding. In particular, streamlined design of the underside plays a big part in minimising lift forces. The BMW 3-Series' aerodynamically optimised underside - with extended streamlined panels at the sides, under the engine compartment shield and at the front part of the exhaust tunnel - provides unprecedented standards of sealing. Additional aerodynamic covers, which create a diffusor effect at the rear axle, further reduce drag and lift forces, while at the same time improving stone chip protection. Also, the front aprons are designed to create an "air curtain" effect which reduces turbulence in the wheel arch area - again reducing drag. The aerodynamically designed wheel arches, and the air deflectors in front of them, likewise help to reduce fuel consumption.

    See also:

    Units of measure
    Setting the units of measure To set the units for fuel consumption, route/distance and temperature: 1. "Settings" 2. "Language/Units" 3. Select the desired menu item. ...

    Reprogramming individual buttons
    1. Switch on the ignition. 2. Press and hold the interior rearview mirror button to be programmed. 3. As soon as the interior rearview mirror LED starts flashing slowly, hold the hand-held tra ...

    Unlocking and opening
    ▷ Either unlock the doors together using the button for the central locking system and then pull the door handle above the armrest or ▷ Pull the door opener twice individually on ...