Interior

The 135i's interior design is fairly traditional, with more upright shapes than sweeping contours. Dual-zone climate controls sit below the center air vents and optional navigation system, with BMW's latest-generation iDrive knob controller ahead of the center console. The system can now read text messages aloud or stream songs off a paired BlackBerry smartphone.

BMW says the cabin controls boast "a more refined look and feel" for 2012, though the layout is hard to distinguish from 2011's. In contrast to the seat belts that motor forward for easier reach in the 3 Series coupe, the 1 Series' belts are fixed onto the B-pillars.

On 135i coupes, the two-position backseat folds in a standard 60/40 split. The convertible offers only a center pass-through. Vinyl seats are standard, with leather optional. The M Sport Package adds unique headliner materials, an M-branded steering wheel and shifter, and sport seats with more aggressive side bolstering.

    See also:

    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 ...

    Storing stations
    Via iDrive1.  "Radio" 2.  "FM" or "AM" 3.  Select the desired station. 4.  Press the controller for an extended period. 5.  Select the desi ...

    DTMF suffix dialing
    DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purp ...