Vehicle Overview

The rear-wheel-drive BMW 1 Series enters its fifth year on the market with a few visual changes, as well as a new higher-performance version from BMW's M division, dubbed the 1 Series M. Above the entry-level 128i is the 135i, whose compact dimensions and two-door layout give it few genuine competitors. The car comes as a coupe or convertible; shoppers might cross-shop the 135i with the Nissan 370Z, Infiniti G37 coupe or top-end versions of Detroit's muscle cars.

The 128i is covered separately in Cars.com's Research section.

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    Fuses
    Never attempt to repair a blown fuse and do not replace a defective fuse with a substitute of another color or amperage rating; otherwise, this could lead to a circuit overload, ultimately result ...

    Fuel quality
    Refuel with unleaded fuel only Do not use leaded fuel as this would permanently damage the catalytic converter. Do not refuel with ethanol Do not refuel with E85, i.e., fuel with an ethanol c ...

    Safety switch for the rear
    Press the button on the driver's door if children are being transported in the rear. This locks various functions so that they cannot be operated from the rear: safety switch. ...