See also:

Changing wheels
Notes The vehicle equipment does not include a spare tire. When using run-flat tires or tire sealants, a tire does not need to be changed immediately in the event of pressure loss due to a fla ...

Checking the coolant level
1. Do not open the hood until the engine has cooled down. 2. Turn the expansion tank cap counterclockwise slightly to allow any accumulated pressure to escape; then continue turning to open. ...

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 ...