Does the stop-start system on my KIA Rio cause extra wear on the engine?

I have recently bought a new KIA Rio 3-spec car. Like many other cars it has an Eco system where the engine shuts off when you stop at traffic lights etc. Sure, if the engine isn't running it is not using fuel but my question is that for the sometimes very short times that the engine is off at say traffic lights, is it saving enough to compensate for the wear on the starter motor etc?

Asked on 6 July 2013 by PC, Bridlington

Answered by Honest John

Usually these systems have a temp sensor that prevents the stop/start stopping the engine if the turbo is too hot, if the ambient temperature is too low, if the DPF is regenerating and, of course, if there is not enough charge in the battery. I have yet to receive any reports of starter motor or starter ring failure on stop/starts.

Tags: stop-start reliability

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