Now the Auto stop/start fault has appeared and will not go away.(Disabling the stop/start

Other than this car drives fine and starts every time.
When I use OBDII to clear the fault the P2032 the Auto stop/start fault reappears immediately.
Should I get the exhaust temp sensor replaced?
It is really starting to drive me mad!
Dealers near Harrow are asking £262 just to diagnose!"
Please help

Thanks.