Bob, I'm still not sure of the relevance of the X1, even where fitted with the same gearbox. The OP is speaking about the F20/21, which has always had the stop/start disable button with the ZF-8AT.
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BMW F22 M240i; F48 X1 25i, BMW F20 M135i
Peugeot T9 308 GTi 270
Renaultsport Megane 3 Trophy-R, Renault Clio Sport 182.
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