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:
Warranty
As you'd expect, the Volvo V50 Sportswagon is supported by a comprehensive
warranty. The standard mechanical warranty is three years/60,000 miles
(whichever comes first), plus there's a three-year ...
Releasing the electric parking brake
Parking brake control
Manual release
1. Fasten the seat belt.
2. Insert the remote key in the ignition slot (or
press the START/STOP ENGINE button
on vehicles with the optional keyless drive) ...
Engine compartment
1 Brake fluid reservoir
2 Relay/fuse box
3 Air cleaner
4 Radiator
5 Dipstick-engine oil
6 Filler cap-engine oil
7 Washer fluid reservoir
8 Power steering fluid reservoir
9 Expansion tank-coo ...
