Exterior

With standard visual cues that come only with the 128i's optional M Sport Package, the 135i has an aggressive front bumper with three large air inlets. Xenon headlights are standard, and they carry a white bordering up top for 2012, mirroring the headlight treatment across most other BMWs. These lights include a string of LEDs embedded in the caps, a visual cue used in the automaker's redesigned 6 Series.

Rather than the 3 Series convertible's folding metal hardtop, the 135i convertible has a fabric soft-top that can open or close in 22 seconds, BMW says. It operates at speeds up to 25 mph.

The 1 Series remains a small car overall, about 2 inches shorter and narrower than a Scion tC. The popular 3 Series coupe, in comparison, measures about 10 inches longer.

    See also:

    Radar sensors
    The radar sensors are located under the rear bumper. The system may not be fully functional in the following situations: ▷ Dirty or icy bumper. ▷ Stickers on the bumper. A Check ...

    Activating/deactivating the systemmanually
    Using the button Press the button. ► LED comes on: Auto Start Stop function is deactivated. The engine is started during an automatic engine stop. The engine can only be stopped or ...

    DSC OFF
    When DSC OFF, is active, driving stability is limited during acceleration and when driving in bends. ...