Stop start engaging at speed

[Stan]

Have a mk7 Golf and the stop start engages whilst travelling at 40mph and even when it's switched off. Local VW garages says it doesn't show as a fault when it's plugged in, consequently there's nothing they can do, really? Anybody else had this, thanks

[Volkswagen Owners Club]

That sounds like a safety issue and one which then manufacturers / dealers should address if it affects engine power or cutting out