Heated oxygen sensors

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.
See also:
Exterior
Thanks to its redesign, the S60 is not the boxy Volvo from days of old. Sure,
it's a midsize sedan produced by the brand that built its name on safety, but
the S60's exterior looks verge on sexy. ...
Volvo Sensus
Center console control panel
1 - Volvo Navigation System (VNS)* – NAV: see the separate VNS manual for operating
instructions.
2 - Infotainment (RADIO, MEDIA, TEL*): see the infotainment system ...
Checking and adding oil
Location of the filler cap and dipstick
Volvo recommends Castrol oil products
NOTE
Before checking the oil:
• The car should be parked on a level surface.
• If the engine is warm, wait for at ...
