External device

See also:

Interior rearview mirror, automatic dimming feature
Photocells are used for control: In the mirror glass. On the back of the mirror. For proper operation: Keep the photocells clean. Do not cover the area between the inside rearview ...

Brake force display
The concept ▷ During normal brake application, the outer brake lamps light up. ▷ During heavy brake application, the inner brake lamps light up in addition. ...

BMW TwinPower Turbo technology in the new four-cylinder engine
This new engine is the most powerful in a new generation of four-cylinder petrol units based on the same reduced-friction core engine, their different output ratings being achieved principally by ...