A guide to start-stop technology

You may have heard the term start-stop technology when shopping for or discussing cars, but what exactly is it and how does it work? In this blog, we'll be looking at why stop-start technology is increasing in popularity as well as the pros and cons. 

What is start-stop technology and how does it work?

Quite simply, start-stop technology detects when your car comes to a halt and stops the engine automatically, then starts the engine again for you when you press the throttle. This technology was developed to reduce the amount of pollution caused by vehicles, specifically emissions released into the atmosphere when cars and vans are idling or stuck in slow-moving traffic.

It's very common when driving in congested urban areas to be sitting stationary in your car, whether you're at a set of traffic lights or stuck in a jam, and whilst it makes sense to turn our engines off, it's very rare that people do. That's where start-stop technology comes in because it automatically does it for us, creating less pollution and saving fuel. 

How does start-stop technology work?

Start-stop technology is completely automatic and works by detecting a lack of vehicle motion. When it detects the brake pedal is pressed and the car is out of gear, the engine control unit (ECU) will cut the fuel and ignition to turn the engine off.

When you're ready to move again and release the brake, put your car into gear or press the throttle, start-stop will send a message to the car to start again. This technology runs smoothly in order for you to experience a seamless driving experience.

If you purchase a car with start-stop technology, you do have the option to turn this feature off.

What are the benefits of stop-start technology? 

It reduces pollution

An idle car still produces harmful carbon emissions, which is completely pointless when your vehicle is stationary. Although you may only be stationary for a few minutes, every reduction in pollutions helps. If all vehicles used this technology, it would contribute to a significant reduction in carbon emissions, something that's becoming a major issue in many towns and cities. 

It saves fuel

It might not be a huge amount but start-stop technology will save fuel. After a period of time it all adds up. 

Quieter cars

When your car is sitting stationary, the engine won't be constantly running, making for a quieter and more peaceful journey. 

What are the negatives of stop-start technology? 

Some people don't like the sensation

Not everyone likes the sensation of stop-start technology and it can take some time to understand how it works and to fully trust it. 

The cost of replacement components can be expensive

Stop-start technology requires powerful components. Although the lifespan of these components shouldn't be shorter than those in a regular car, they can be more expensive.  

If you're looking for new car or van that is economically and environmentally friendly, explore our range of used cars and used vans. If you would like more information about start-stop technology, or need some expert advice when choosing your new car, please don't hesitate to get in touch. We'd love to help!