Expert answer

Hi Tahir,

The first thing we'd check is the condition of the battery. It sounds like the system is turning off the engine as normal, but then sensing that it needs to go back on right away. That's unusual, to be honest, as most systems just won't turn the engine off if an issue is detected. I'd advise you bring the car to a good mechanic or auto-electrician to have it looked over.

Our feature, Why won't my car's stop-start system work?, is worth a read as well.

Expert answer

Hi Nathan,

Generally the Ford 1.6-litre diesel (also used by Mazda, Peugeot, Citroen, Volvo and MINI down the years) is a rugged and reliable unit, but there are a few things to bear in mind. First off, this is an engine that needs a regular diet of high-grade synthetic engine oil, otherwise a nasty sludge can build up in various parts of the engine, choking performance. Make sure you check the service history to ensure that a good quality oil has always been used. The stop-start system can occasionally cause starter motor issues, especially if the car has mostly been driven in town. If it has been mostly driven in town, or has very low mileage, be wary of potential issues with the diesel particulate filter, too.

Expert answer

Hi Harry,

The most likely culprit is that there’s some electrical item draining the system as you’re driving. Or, possibly if you’re only driving for short hops, the engine is still in its warm-up phase and can’t be shut down by the stop/start. Or, and this is a wild guess, Land Rovers often have flakey electrics. 

Maybe read our Why won't my car's stop-start system work? feature for further understanding. We get a lot of questions like this.

Expert answer

Hi Robert.

Stop-start systems have a mind of their own — literally. They’re designed to only stop the engine when demand for electrical supply within the car falls low enough that it’s safe to do so. So if you’re running the air conditioning, for instance, or have the heat turned up, or if the engine is still in its warm-up phase, then it will either not shut the engine off at all, or will only shut it off briefly. Driving style also plays into it, as does where and when you’re driving. It also depends on the battery condition, so if you’re concerned about the short stop-start times, it’s worth having the health and charge level of the battery checked.

Finally, as we get so many questions on this subject, we put together a quick feature on it for your interest: Why won't my car's stop-start system work?

Expert answer

Hi Abdul,

Stop-start systems can stop working for a variety of reasons, usually to do with battery condition or load. We get so many questions about them that we've put together this feature that you may find of interest:

Why won't my car's stop-start system work?

Expert answer

Hi Stewart,

A lot of cars develop this 'fault' and it's usually to do with battery condition or load. We get so many queries about it that we put together a feature explaining it all that you may find of interest:

Why won't my car's stop-start system work?

Expert answer

Hi Cathy,

Many cars develop similar problems, usually because of battery condition or load. Our feature on the subject, Why won't my car's stop-start system work? may help you further.

Expert answer

Hi Debbie,

It doesn't sound to us as if this is anything to do with the stop-start system, but actually an issue with the engine itself that needs looking at by a good mechanic. You've not told us which generation of EcoSport you have, nor which engine it has, but the 1.5-litre TDCi diesel has a known issue with the turbocharger wastegate valve that could cause engine running issues. It might be worth mentioning to the mechanic when you bring it to be checked.

Best of luck

Expert answer

Hi Kieran,

We would expect most stop-start issues to be sorted by a new battery, but the installer is correct: auto stop won't always work. In fact, we get so many queries about the subject that we wrote this feature you may find of interest: Why won't my car's stop-start system work?

Expert answer

Hi Kate,

There are loads of reasons for an engine's stop-start system to stop working (see our Why won't my car's stop-start system work? feature), but it rarely is linked with a dangerous issue. 

Saying that, there's no harm at all in bringing your car to a good mechanic to have it diagnosed to confirm that nothing major is amiss.

Best of luck with it