What does code P0116 for 1998 Volvo s70mean?
Trouble code P0116 means:Engine coolant temperature circuit range/performance problem
The P0116 is a coolant temperature sensor trouble code. The most likely cause is a bad sensor, also check for corrosion on the connector and for broken or frayed wires. It is located in the coolant housing on the rear of the engine, be careful not to break the plastic clips that hold the sensor and note there is an o-ring that goes in place before the sensor.