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 avoid such a delay when the brakes are needed, depress the pedal occasionally when driving through rain, slush, etc.
This will remove the water from the brakes.
Check that brake application feels normal. This should also be done after washing or starting in very damp or cold weather.
See also:
Changing
WARNING
Connect and disconnect the positive and negative cables in the correct sequence.
Removal
Switch off the ignition, remove the remote key from the ignition slot and wait
at least 5 ...
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 ...
Driving after a collision
If the vehicle has been involved in a collision,
the text Safety mode See manual may
appear in the information display. This indicates
that the vehicle's functionality has been
reduced.
NOTE
...
