My diesel Citroen Synergie's engine temperature warning light has started flashing intermittently.
It doesn't seem to bear any relationship to the indicated engine temperature on the gauge and it isn't causing the big "STOP" warning lamp to illuminate as the handbook suggests ought to be happening if the engine's overheating. Some days the light doesn't come on at all
The coolant level is fine, the water's clean, there's no steaming from the exhaust, the engine and heater seem to be working exactly as normal.
Given all the above, I'm more inclined to believe in a sender fault that an overheating problem but I'd like to be sure.
Does anyone know where the overheat sensor is on the 2.0 hdi engine and how to test it or should I be taking my car down to the garage?
TIA
Tim