See also:

Water on brake discs and brake pads affects braking
Driving in rain and slush or passing through an automatic car wash can cause water to collect on the brake discs and pads. This will cause a delay in braking effect when the pedal is depressed. To ...

Safety
There's no shortage of safety features in the C30, including standard all-disc antilock brakes with electronic brake-force distribution and brake assist, side-impact airbags for the front seats, s ...

Current speed in km/h (U.S. models only)
This function provides the driver with an instantaneous conversion of the car's current speed from mph to km/h. ...