Kia Cee'd: Winter driving / Change to "winter weight" oil if necessary
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
Winter puts additional burdens on the
battery system. Visually inspect the battery
and cables as described in chapter
7. We recommend that the system be
checked by an authorized Kia dealer. ...
Check spark plugs and ignition
system
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. ...
Other information:
Kia Cee'd JD Service Manual: Compressor Repair procedures
Removal
1.
If the compressor is marginally operable, run the engine at idle speed,
and let the air conditioning work for a few minutes, then shut the engine
off.
2.
Disconnect the negative cable from the battery.
...
Kia Cee'd JD Service Manual: In car sensor (DATC only) Description and operation
Description
The In-car air temperature sensor is built in the heater & A/C control unit.
The sensor contains a thermistor which measures the temperature of the inside.
The signal decided by the resistance value which changes in accordance with
perceived inside tempera ...
