What this usually means
Temperature warnings can be fan module, thermostat, coolant sensor or water pump. Ask for live temperature data and pressure test before replacing radiator or head gasket.
What to ask the workshop before approving repair
- • Show the diagnostic fault codes.
- • Show photo/video proof of the failed part.
- • Give an itemised quote for parts and labour.
- • Explain why cheaper common fixes were ruled out.
- • Use/confirm: ODIS
- • Use/confirm: Cooling system pressure tester
This is not a final diagnosis. It is a money-saving checklist before you go workshop.