Can I ask forum members there opinion about the Start-stop system. Â· Do you use it? Â· How about heavy city traffic (start stopping all the time) Â· Does it wear-out parts by using this. I still donât really know when it will Start-stop I know your engine temp needs to be at ? degrees. But sometimes it does and then it doesnât is there some kind of logic behind it. Grtx Rain.