Stop/Start in 2021 Warwick XL

Our Stop/Start has only worked 4 times on the first day, and once after I had it into Peugeot for it to be checked out. The Peugeot dealer that is working on it (been in twice now), states that the Stop/Start "never" works on motorhomes because of the demand on the 12v non-hab power supply. I can't believe this is so as I have done quite a few 200+ mile drives and one would expect the engine battery to be fully charged. 

I can live without Stop-Start however I have noticed a massive difference in v (cheap cigarette voltmeter) between accelerating 14.8v and Over Run 12.2 which is backed up by a change in speed of the cab heater fan varying its speed when set on maximum and not sure if this indicates a bigger problem.

Any thoughts welcome.

Kevin

All I can say is that we have had 2 Ducato based PVCs with Stop/Start and it worked/works on both so I can’t quite believe what your dealer said.

In my opinion, the Stop/Start is a pain so I’d gladly settle for it not working. 

Could the voltage difference be anything to do with smart alternators.

I have stop/start on my car and it hasn't worked for a couple of years now but the handbook tells me it has to satisfy about 24 criteria to work, such as it has to be driven for a minimum distance at a minimum speed in a certain time with ambient temp at such a temperature etc etc....

Our 2021 Boxer based Kingham definitely has stop/start. And it generally works although as Paul says due to the number of criteria that need to be satisfied some days it works and others it doesn’t. It’s generally better on a long run or if we’ve been using it a lot.

Personally I have no problem with stop/start, but appreciate it’s a bit marmite.

Mine rarely works, can’t say I’m particularly disappointed though. It’s fine with a smooth quiet petrol engine, not so much with a diesel. Even after a 250 mile non stop journey it still didn’t work, as an example. I can’t say what the difference might be on the extremely rare occasions it does work.

Same as Paul, our 19 reg Fiesta has worked a few times since new, anyway I always turn it off, trouble is it resets each time you turn ignition off.

Pain in the butt, still they have to have it to pass regs
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Richard

rgermain wrote:Same as Paul, our 19 reg Fiesta has worked a few times since new, anyway I always turn it off, trouble is it resets each time you turn ignition off.

Pain in the butt, still they have to have it to pass regs
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Richard

Mine has the light permanently lit that shows its switched off, and it's passed several MOT'S like that. I cannot turn that light on the switch off.

Should made it clearer. Main agent told me they need stop/start to meet requirements at manufacture stage, as far as I understand not a MOT requirement. How can they test it when it very rarely works, not all warning lights fail MOT.
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Richard