Hyundai Sonata: Engine coolant
The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once a year, at the beginning of the winter season, and before traveling to a colder climate.
Changing the engine oil and filter
Have engine oil and filter changed by an authorized HYUNDAI dealer according
to the Maintenance Schedule at the beginning of this section.
CALIFORNIA PROPOSITION 65 WARNING
Engine oil contains ...
Checking the coolant level
WARNING
Removing radiator cap
Never attempt to remove the radiator cap while the engine is operating
or hot. Doing so might lead to cooling system and engine damage and could result
in se ...
See also:
Instrument Cluster. Schematic Diagrams
Circuit Diagram
Input/Output Specification
...
Interior care
Interior general precautions
Prevent chemicals such as perfume, cosmetic oil, sun cream, hand cleaner, and
air freshener from contacting the interior parts because they may cause damage or
discol ...
Heated Oxygen Sensor (HO2S). Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the HO2S connector.
3.
Measure resistance between th ...