In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See chapter 8 for recommendations. If you aren't sure what weight oil you should use, we recommend that you consult an authorized Kia dealer.
Check battery and cables
Check spark plugs and ignition
systemKia Cee'd JD Service Manual: Description and operation
Description
Ignition timing is controlled by the electronic control ignition timing system.
The standard reference ignition timing data for the engine operating conditions
are pre-pro grammed in the memory of the ECM (Engine Control Module).
The engine operating conditi ...
Kia Cee'd JD Service Manual: Engine Coolant Temperature Sensor (ECTS) Specifications
Specification
Temperature
Resistance (kΩ)
°C
°F
-40
-40
48.14
-20
-4
14.13 ~ 16.83
0
32
5.79
...