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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    Coolant level
    Checking 1. Let the engine cool. 2. Turn the cap of the expansion tank slightly counterclockwise to allow any excess pressure to dissipate, and then open it. 3. The coolant level is correct if ...

    Time, date, external temperature
    From radio readiness the external temperature and the time are displayed. Set the time Retrieving date Retrieving date Press the button on turn signal lever upward; the date appears. Set th ...

    Coupe: through-loading system
    Opening 1.  To release the rear seat backrest, pull the corresponding lever in the cargo area. 2.  The unlocked rear seat backrest moves forward slightly. Fold the backrest forward b ...