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:
Summer and winter tires
The arrows shows the direction of rotation of the tire
When switching between summer and winter tires, mark the tires to indicate
where they were mounted on the car, e.g., LF = left front, RR ...
Unlocking the fuel filler door
Press button (5) when the vehicle is at a standstill
to unlock the fuel filler door. Please note
that the fuel filler door will remain unlocked until
the vehicle begins to move forward. An audible
...
Before a long distance trip
It is always worthwhile to have your vehicle checked by a trained and qualified
Volvo service technician before driving long distances. Your retailer will also
be able to supply you with bulbs, fu ...
