Engine And Transaxle Assembly Repair procedures
Components and Components LocationHyundai Elantra AD (2016-2020) Service Manual: Refrigerant Line Repair procedures
Replacement
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 (-) battery terminal.
3.
Recover the refrigerant with a recovery / charging station.
...
Hyundai Elantra AD (2016-2020) Owners Manual: Driving Your Vehicle
WARNING
Carbon monoxide (CO) gas is toxic. Breathing CO can cause unconsciousness
and death.
Engine exhaust contains carbon monoxide which cannot be seen or smelled.
Do not inhale engine exhaust.
If at any time you smell engine exhaust inside the vehicle, open the windows
immediately. Exposu ...