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.
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Styling
I've been a fan of the Volvo S40's face since it was last redesigned, and I'm
glad to see the look spreading across the Volvo brand to models like the S80 and
now the C30, which is related to both ...
Manually opening the fuel filler door
If necessary, the fuel filler door can be opened manually:
1. Open the side hatch in the trunk (on the same side as the fuel filler door).
2. Grasp the green cord with a handle.
3. Gently pull th ...
Getting started
Use the controls on the steering wheel keypad and in the center console to access,
navigate and make selections in the hands-free system’s menus. ...
