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Aquaplaning: When the Tyres Stop Touching the Road

The handbook is precise about this one. Aquaplaning happens when you drive too fast for a wet road: the tyre tread cannot channel away enough water, so the tyre loses contact with the tarmac and the vehicle floats on a wedge of water.

While it's happening you have no steering and no braking — not reduced, absent. The controls are connected to wheels that aren't touching anything.

What raises the risk, all of it already familiar:

  • Speed. The dominant factor. On flooded tarmac the risk climbs steeply above roughly 80 km/h — indicative, not a threshold: it moves with everything below.
  • Water depth. Standing water and wheel ruts are far worse than a damp surface.
  • Tread depth. Tread is the water-evacuation system from Tyres — at 3 mm it's already degraded, at the 1.6 mm legal floor it's poor. The aquaplaning speed drops with the tread.
  • Under-inflation, which distorts the contact patch and hurts water clearance.

The recovery — and it contradicts every instinct. The handbook's instruction is to ease off the accelerator and the brakes until speed drops enough for the tyres to touch the road again. So:

  • Do not brake. The wheels aren't in contact; braking achieves nothing and locks them for the moment contact returns.
  • Do not steer sharply. Steering input while floating does nothing — and then does something violent and unwanted the instant grip comes back.
  • Hold the wheel straight, come off the pedals, and wait. It typically lasts seconds.

Prevention is the real answer, and it's two things you already own: appropriate speed for the water, and tyres with genuine tread.

Key takeaways

  • Aquaplaning is the tyre floating on a wedge of water because the tread can't clear it — steering and braking are gone, not merely weaker
  • Recovery is to do almost nothing: ease off accelerator and brakes, hold the wheel straight, and wait for contact — braking or steering while floating makes the return of grip violent

Quick check

At speed on a flooded stretch, the steering goes light and the car stops responding. What do you do?

At speed on a flooded stretch, the steering goes light and the car stops responding. What do you do?