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Vehicle Overview
Volvo's smallest sedan, the compact S40, comes in 2.4i and T5 trim levels, the latter offered in all- as well as front-wheel drive. A few years past a full redesign, the S40 and its V50 wagon sist ...

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 r ...

Courtesy lights/door step lighting
The courtesy lights/door step lighting switch on/off automatically when one of the front doors is opened/closed. ...