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 freezing: Under Hood Overview - 2.0L EcoBoost™
Windshield washer fluid reservoir. See Adding Washer Fluid.
Engine coolant reservoir. See Checking the Coolant.
Engine oil dipstick. See Engine Oil Dipstick Overview.
Engine oil filler cap. See Adding Engine Oil.
Brake fluid reservoir. See Locating the Brake Fluid Reservoir.
Battery. See Cha ...
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.
...