Radio ready state
Activate radio ready state:
▷ When the ignition is switched off: press ON/ OFF button on the radio.
▷ When the engine is running: press START/ STOP button.
Some electronic systems/power consumers remain ready for operation.
Radio ready state switches off automatically:
▷ After approx. 8 minutes.
▷ When the vehicle is locked using the central locking system.
▷ Shortly before the battery is discharged completely, so that the engine can still be started.
See also:
Tire inflation pressure
Safety information
The tire characteristics and tire inflation pressure
influence the following:
▷ The service life of the tires.
▷ Road safety.
▷ Driving comfort.
Checking th ...
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 ...
Fuel tank capacity
Gasoline engine Fuel tank capacity: approx.
21.6 US gal/82 liters.
Refuel promptly
Refuel below a range of 30 miles/50 km;
otherwise, engine functions are not ensured and
damage may occur. ...