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:
Hazard warning flashers
Hazard warning flashers
The four-way flasher should be used to indicate
that the vehicle has become a traffic hazard.
To activate the flashers, press the triangular
button in the center dash. ...
Environment
Volvo is passionately committed to protecting our environment. Along with
safety, environmental protection is a cornerstone of the Volvo brand,
commensurate with the company's philosophy to protect ...
Brake pad inspection
On vehicles equipped with a jack*, the condition of the brake pads can be checked
by raising the vehicle (see page 290 for information about using the jack and removing
a wheel) and performing a v ...
