Engine braking and ghat descents

On a long descent, brakes that are used all the way down get hot and fade. The fix is to let the engine hold the speed, so the brakes only finish the job.

Choose the gear before the descent, not on it. General technique, not a substitute for training or your owner's manual. Practise on easy ground first, with a spotter, and stop if you are unsure.

Low gearbefore thedescentBrakein shortburstsFadesoft pedal,smell
Use the engine, not the brakes, to hold speed.

The short answer

Before a long descent, select a low gear, roughly the one you would use to climb it, and let the engine hold the speed. Use the brakes in short, firm bursts, not constantly. In an automatic, use the lower gear positions your manual describes. If you smell hot brakes or the pedal goes soft, stop and let them cool. Never coast in neutral or with the clutch in.

Do

  • Select the gear before the descent
  • Brake firmly in short bursts
  • Use Hill Descent Control on steep off-road slopes
  • Stop and cool if the brakes smell hot
  • Leave extra gap

Do not

  • Ride the brakes all the way down
  • Coast in neutral
  • Hold the clutch in
  • Change gear mid-bend if you can avoid it
  • Ignore a soft pedal

How engine braking works

With the foot off the throttle in gear, the engine resists the wheels and slows the car. A lower gear gives more braking. It keeps the brakes cool and the speed steady. Choose the gear before the slope, because shifting down on a steep slope can be hard.

For steep off-road slopes, see Hill Descent Control.

Manual and automatic

Reported differences
AreaManualAutomatic
Choosing the gearYou select itUse the lower positions in your manual, or the overdrive switch to hold lower gears
ControlDirectLess direct, with a 4-speed box
Do notCoast in neutral or clutch inDo not shift to N on a descent
Check the manual. The lower gear positions on the automatic and what they allow are in your owner's manual.

Brake fade

  • Signs: a soft or long pedal, a burning smell, the car not slowing as before
  • What to do: pull off safely, switch off, and let the brakes cool. Do not pour water on hot discs
  • Prevent it: keep brake fluid fresh and pads and discs in good shape, see brakes and wheel bearings

Pick your descent

Tap a descent to see what to do.

Tap a descent (6 to try)

What to do for Long, steep ghat

Do this
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Details
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Common mistakes

  • Riding the brakes. They fade.
  • Coasting in neutral. You lose engine braking.
  • Choosing the gear too late. Shifting on a slope is hard.
  • Pouring water on hot brakes. It can damage discs.
  • Ignoring a soft pedal. Stop.
A final word. General technique, not a substitute for training or your owner's manual. Practise on easy ground first, with a spotter, and stop if you are unsure.