Coasting in driving means allowing a vehicle to move while the clutch is disengaged or the gear is in neutral. This prevents the engine from being connected to the wheels and can reduce the driver’s control over the vehicle.
Coasting is particularly important to understand when learning to drive because it can affect braking, steering and the driver’s ability to respond quickly to changing road conditions.
When Does Coasting Happen?
Coasting can happen when a driver:
- Keeps the clutch pedal pressed down while the vehicle is moving
- Selects neutral while travelling
- Allows the vehicle to roll downhill in neutral
- Depresses the clutch too early when approaching a junction or hazard
For example, a driver approaching a junction in a manual car might press the clutch and leave it down while travelling towards the junction. If this is done too early, the vehicle is effectively coasting.
Why Is Coasting Dangerous?
When the engine is disconnected from the wheels, the driver may have less control over the vehicle.
The vehicle can also lose the benefits of engine braking, meaning it may gather speed more easily when travelling downhill.
Coasting can therefore make it harder to control speed smoothly and respond appropriately to hazards.
Is Coasting Illegal?
Coasting itself is not necessarily a separate offence in every situation. However, if coasting results in a driver failing to maintain proper control of the vehicle or driving in an unsafe manner, it can become a road-safety issue.
Drivers should follow the appropriate driving technique for the road, traffic and conditions rather than deliberately coasting to save fuel.
Coasting and Fuel Economy
Some drivers coast because they believe it saves fuel. Modern vehicles, however, are designed to manage fuel consumption efficiently when the driver lifts off the accelerator while remaining in gear.
Coasting in neutral is therefore not generally a good reason to sacrifice vehicle control.
How to Avoid Coasting
When approaching a hazard, junction or change in traffic conditions, select the appropriate gear and maintain proper control of the vehicle.
In a manual car, avoid pressing the clutch down unnecessarily early. Keep the vehicle in an appropriate gear until you need to change gear or stop.
This allows the engine and transmission to remain connected and can provide better control.
Coasting on a Downhill Road
Coasting downhill in neutral can be particularly risky because gravity can cause the vehicle to accelerate.
Keeping the vehicle in an appropriate gear allows the engine to provide braking assistance, helping the driver manage speed while reducing excessive reliance on the brakes.
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The Simple Meaning of Coasting
The easiest way to remember it is: coasting means the vehicle is moving while the engine is disconnected from the wheels, usually because the clutch is pressed down or the gear is in neutral.
Avoid unnecessary coasting and maintain proper control of the vehicle, particularly when approaching hazards, junctions and downhill sections.
