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500x stop nd start
Posted: 05 Apr 2026, 19:08
by Younes
Does MultiEcuScan support disabling Start & Stop on a 2024 Fiat 500X 1.4 MultiAir?
Re: 500x stop nd start
Posted: 06 Apr 2026, 07:28
by s130
Not that I can see directly as a function.
My 2015 500X has a button on the dasboard to disable the Start / Stop.
I guess coould be done via custom Proxi change but I've not ever seen any details here.
You could disconnect the battery sensor module. After some time the S / S will probably stop working as it can't determine the condition of the battery from the measured charge / discharge profiling. HOWEVER! Doint this could affect the alternator charging if your 500X has a smart alternator.
Re: 500x stop nd start
Posted: 06 Apr 2026, 08:02
by Younes
Disconnecting the battery sensor plug makes the Start/Stop warning light turn on. This is very annoying and could be harmful to the car's systems.
In the free version of the software (using Simulator mode), I couldn't find the option to disable this feature.
Does this mean the option is not available at all, or is it just hidden in the free version?
Re: 500x stop nd start
Posted: 06 Apr 2026, 16:25
by s130
I have the full version of MES.
The free version will show all that is available but you won't will only be able to use those functions.
Re: 500x stop nd start
Posted: 06 Apr 2026, 17:41
by Younes
Does this mean the Start/Stop disable feature for the 500x is also missing from the full version?
wiTECH doesn't support these adjustments, even with the latest update. So, I’m planning to use MES. I need to be sure it can disable Start/Stop on the 500x before purchasing
Thank you
Re: 500x stop nd start
Posted: 07 Apr 2026, 16:24
by s130
As I said (maybe I was not clear) the free version shows everyting that is available in the purchased version. I can NOT see any Start/Stop setting in the latest version of MES for the 500X.
I've had comments from a Fiat Master Technician the wiTECH does not support some items that MES does.
Check Out AlfaOBD as well.
You could also contact MES Spport with a Pre-Sales enquiry.
Re: 500x stop nd start
Posted: 07 Apr 2026, 19:43
by abarthmultijet
Usually disabling start stop requires a visit from the ECU tuner.