The concept

The following can be operated using the buttons and the thumbwheel on the steering wheel:
- Current audio source.
- Redial on telephone*.
- Activation of the voice activation system*.
See also:
Treble, bass, balance, and fader
▷ "Treble": treble adjustment.
▷ "Bass": depth adjustment.
▷ "Balance": left/right volume distribution.
▷ "Fader": front/rear volume ...
Stowing cargo
► Very heavy cargo: when the rear seat is not
occupied, secure each of the outer safety
belts in the opposite buckle.
► Cover sharp edges and corners.
► Do not stack cargo abov ...
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 BM ...
