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:
General information
Warning symbols in the instrument panel
As an enhancement to the three-point seat belts, your Volvo is equipped with
a Supplemental Restraint System (SRS). Volvo's SRS consists of seat belt p ...
Heated front seats
The current seat temperature is shown in the center console display
Press the button once for the
highest heat level – three indicator
lights come on.
Press the button twice for a
lower he ...
Owner maintenance
Periodic maintenance requirements and intervals
are described in your vehicle's Warranty
and Service Records Information booklet.
The following points can be carried out
between the normally sc ...
