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.

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    Rear operation
    The control unit is located in the center console in the rear. Rear operation 1. Temperature, left rear seating area 2. AUTO program 3. Display 4. Temperature, right rear seating area 5. Sea ...

    Setting the voice dialog
    You can set whether the system uses the standard dialog or a short version. In the short version of the voice dialog, the responses from the system are given in abbreviated form. On the Control Di ...

    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 transm ...