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's recommendations
Why does Volvo believe that no child should sit in the front seat of a car? It's
quite simple really. A front airbag is a very powerful device designed, by law,
to help protect an adult.
Beca ...
Ignition switch and steering wheel lock
A The gear selector must be in the P (Park) position (automatic
transmission).
B Please be aware that leaving the key in this position will
increase battery drain. ...
Geartronic–manual shifting
Geartronic allows you to manually shift among
your vehicle's six forward speeds. Geartronic
can be selected at any time.
• To access the manual shifting position
from Drive (D), move the gear s ...
