Heated oxygen sensors

Heated oxygen sensors  - Emission controls - Refueling - During your trip - Volvo S60 Owners Manual - Volvo S60

The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.

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    Air distribution
    The incoming air is distributed from a number of different vents in the passenger compartment. Air distribution is fully automatic in AUTO mode. If desired, air distribution can be controlled ...

    Maintenance
    Use a screw driver to open the caps or cover and a flashlight to inspect the level. If necessary, add distilled water. The level should never be above the indicator. The fluid level should b ...