Summer tires

Do not drive with a tire tread depth of less than 0.12 in/3 mm.

There is an increased danger of hydroplaning if the tread depth is less than 0.12 in/3 mm.

    See also:

    Roadside Assistance
    At a glance BMW Roadside Assistance can be contacted if assistance is needed in the event of a breakdown. Roadside Assistance can also be contacted via a Check Control message. Start Roadside A ...

    Opening/closing the glass sunroof
    When the sliding visor is open, proceed as described under Sliding visor. ...

    Safety
    Both the coupe and convertible have front airbags plus side-impact airbags built into the front seats. As required of all 2012 models sold in the U.S., the 640i has standard antilock brakes and an ...