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:
Seat belt pretensioners
All seat belts are equipped with pretensioners
that reduce slack in the belts. These pretensioners
are triggered in situations where the
front or side impact airbags deploy, and in certain
imp ...
Autostart
This function makes it possible to start the
vehicle without holding the key in the start
position (position III) until the engine starts.
Turn the key to position III and release it. The
starte ...
Coolant
Location of the coolant reservoir
Normally, the coolant does not need to be changed. If the system must be drained,
consult a trained and qualified Volvo service technician.
See page 341 for inf ...
