System limits
Personal responsibility
The system cannot serve as a substitute for the driver's personal judgment of the traffic situation.
In the event of a warning, do not jerk the steering wheel, as you may lose control over the vehicle.
The system may not be fully functional in the following situations:
- When a vehicle is approaching at a speed much faster than your own.
- In heavy fog, rain or snowfall.
- In tight curves or on narrow lanes.
See also:
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 ...
Display in the instrument cluster
The selected speed is displayed
in the speedometer.
Green: the system is actively
braking the vehicle.
Orange: the system is on
standby.
...
Fuel specifications
Never use fuels labeled at the fuel pump as metal-containing.
Do not use leaded gasoline or gasoline with
metal-containing additives such as manganese or iron; doing so can cause permanent
damag ...