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What should the driver in the picture do as soon as possible after the water pool?
“Always test the brakes after driving through water pools. […] In doing so, the brakes are heated and the moisture dries.” (Driving Licence Book, 19th Edition, page 131)
Aquaplaning is nothing that tyres can get afterwards (like a puncture), which rules out this option. Stopping and letting the car “dry” is unreasonable and impractical.
The engine’s essential components are watertight and protected. The brakes are not as protected, however, particularly if they are disc brakes. Water between the brake shoe and brake disc causes deteriorated friction, which leads to diminished braking effect.
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