your brakes may be less effective. Test them at the first safe opportunity by pushing gently on the brake pedal to make sure that they work. If they are not fully effective, gently apply light pressure while driving slowly. This will help to dry them out. 

122. Coasting.  This term describes a vehicle travelling in neutral or with the clutch pressed down. It can reduce driver control because 

● engine braking is eliminated 

● vehicle speed downhill will increase quickly 

● increased use of the footbrake can reduce its effectiveness 

● steering response will be affected, particularly on bends and corners 

● it may be more difficult to select the appropriate gear when needed. 

## The Driver and the Environment 

123. You MUST NOT  leave a parked vehicle unattended with the engine running or leave a vehicle engine running unnecessarily while that vehicle is stationary on a public road. Generally, if the vehicle is stationary and is likely to remain so for more than a couple of minutes, you should apply the parking brake and switch off the engine to reduce emissions and noise pollution. However it is permissible to leave the engine running if the vehicle is stationary in traffic or for diagnosing faults. 

Law CUR regs 98 & 107 

