if charging battery dont work then needs a scan see what codes are stored. both my past clubmans when i bought them had triangle lit and no start stop, first one was a oil pressure issue causing under boost from turbo as lack of oil pressure to float the shaft,, that one was a spares repair bought car that ended up being a engine out and rebuilt one to take its place,, the second one had same thing put glow plug relay had failed and two glow plugs this caused the dpf filter not to regen and this caused the turbo to fail,, ie ended up new turbo new dpf filter glow plug snapped off in head so head had to come off,, word of warning if glow plugs need changing your best chance t remove them is run engine until fan cuts in then i use a impact gun set on mid force,, never try doing them cold,,Hi my stop start is not working .
All else is ok .
When I make my first stop of a journey the warning light comes on stop start symbol with exclamation mark next to it .
Then warning triangle.
Warning light resets on restart and then comes on again at first stop.
Any ideas ?
just saying ths not because for one minute saying that yours is any of this but have a open mind when dealing with it,, and those engine must have no fault codes stored at all times as this will block up the dpf filter and cause a lot more damage,,