The top tips for dealing with flooded roads
1. Only drive through water if you know how deep it is.
2. Drive slowly and steadily. Allow oncoming traffic to pass first and test your brakes as soon as you can after leaving the water.
3. Don't drive through fast-moving water, such as at a flooded bridge approach – your car could easily be swept away.
4. Driving fast through standing water is dangerous – tyres aquaplane and you lose steering control. Watch out for standing water, trying to avoid it if you can, and adjust your speed to the conditions. If you experience aquaplaning, hold the steering wheel lightly and lift off the throttle until the tyres regain grip.
5. Driving fast through standing water is inconsiderate and illegal. You could face a hefty fine and between three and nine penalty points if the police believe you were driving without reasonable consideration to other road users.
6. Driving fast through standing water can cause expensive damage – the air intake on many cars is low at the front of the engine bay and it only takes a small quantity of water sucked into the engine to cause serious damage. All engines are affected, but turbocharged petrol and diesel engines are most vulnerable.
7. As you drive slowly through standing water, keep the engine revving by slipping the clutch, otherwise water in the exhaust could stall the engine.
8. If you break down in heavy rain don't prop the bonnet open while you wait for the patrol to arrive – the engine will be more difficult to start again if the electrics are rain-soaked.