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:
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 ...
Engine compartment, overview
The appearance of the engine compartment may vary depending on engine model.
Coolant expansion tank
Power steering fluid reservoir
Engine oil dipstick
Radiator
Filler cap for engine oil
...
Replacing the daytime running lightbulb (models with Active BendingLights only)
1. Remove the rubber cover over the bulb by
pulling it off.
2. Turn the bulb holder counterclockwise and
pull it out of the headlight housing.
3. Remove the connector from the bulb unit
by pres ...
