Bit of an oddity but my temp gauge doesn't read correctly then it will creep up to midway mark then plummet as though it has lost the sensor reading or it's had a short circuit ? like its just been disconnected.
I have put in a brand new Coolant temperature sensor,
I have none of the issues associated with worn/faulty sensor such as poor idling, poor petrol consumption or black smoke. Car drives normally.
Error code PO118 which refers to Coolant temp sensor ? but its just been replaced.
Any ideas/suggestions would be greatly appreciated