It was a 110 size, so the one in there was correct and not the 096 which several dealers advised.
Even Tayna online recommended a 115 which is the same size as what was in there but for stop start vehicles.
The guy at Tayna on the phone put me straight and advised another Bosch S4010 which is now installed.
This isn't the first time typing in reg has got me the wrong part so I guess it may be a between model, transitional type of thing?