The "auto" button in the centre of the climate control temp knob on my 57 plate Type R has stopped working and no longer engages auto mode when pushed in. All other aspects of the climate control unit are functioning ok and heating/aircon are all working. I'm suspecting the climate control unit has developed a fault. Has anyone else had this issue and if so what was the fix. If a replacement unit is required then any advice on how to remove it would be much appreciated.