My stop/start hasn't worked since I got the car, turns out the previous owner had fitted the wrong type of battery... Correct battery installed, works great now...
Had no idea there was such a thing as a stop/start battery... It's a battery within a battery or something?
It’s just a much more durable/powerful battery as far as I understand it. Very different demand compared to just starting the engine just once each journey.
Stop/start now works!