Inspect your spark plugs as described in chapter 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way.
Change to "winter weight" oil if
necessary
To keep locks from freezingKia Cee'd JD Service Manual: Troubleshooting
Troubleshooting
•
The battery must be in good condition and fully charged for
this troubleshooting.
...
Kia Cee'd JD Service Manual: Engine Coolant Temperature Sensor (ECTS) Description and operation
Description
Engine Coolant Temperature Sensor (ECTS) is located in the engine coolant passage
of the cylinder head for detecting the engine coolant temperature. The ECTS
uses a thermistor that changes resistance with the temperature.
The electrical resistance of the ECTS d ...