Kia Sorento: Checking the amount of air conditioner (A/C) refrigerant and compressor lubricant
Insufficient refrigerant levels within the system significantly reduce the overall cooling and heating performance of your Kia Sorento. Conversely, overfilling the refrigerant circuit also adversely impacts the high-pressure A/C system components and operational efficiency.
If any abnormal mechanical operation, unusual compressor noise, or loss of cooling capacity occurs, have the climate system thoroughly inspected by an authorized Kia dealer or certified specialist.
DANGER
The specialized oil and high-purity refrigerant circulating throughout your Kia Sorento vehicle’s advanced A/C system are maintained under extreme, high operating pressure. If proper factory service procedures, evacuation equipment, and safety protocols are not strictly followed, a sudden mechanical failure or explosion may result. To significantly reduce the risk of severe personal injury, permanent bodily harm, or death, the air conditioning system in your vehicle should exclusively be serviced by trained, licensed, and certified technicians.
NOTE
It is critically important that you utilize the exact chemical type and precise factory-specified amount of compressor oil and refrigerant. Using incompatible fluids or incorrect volumes may cause irreversible damage to internal climate components. To prevent costly equipment damage, the A/C system in your vehicle should only be handled by trained professionals.
WARNING
Vehicles equipped with R-1234yf

It is vital that you employ the correct grade and volume of lubricant and refrigerant during any maintenance cycle. Always safely reclaim all existing refrigerants using specialized, approved recovery equipment. Venting automotive refrigerants directly into the open atmosphere is severely harmful to individual human health and the surrounding environment. Failure to heed these essential safety warnings can lead to serious injuries.
ECM Terminal And Input/Output signal
ECM Terminal Function
Connector [C300-A]
Pin
No.
Description
Connected to
1
Ignition Coil (Cylinder #2) control output
[NON-smart ke ...
Operation
Passive Functions
The system allows the user to access the vehicle without having to perform
any actions (e.g. RKE button pressing) with the SMART KEY FOB. It is sufficient
that a valid S ...
Brake Pedal Adjustment
Brake Pedal Height and Free Play
1.
Disconnect the stop lamp switch connector (A) and loosen the stop
lamp switch lock nut.
2. ...