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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 ...

Handling, roadholding
Vehicle load, tire design and inflation pressure all affect vehicle handling. Therefore, check that the tires are inflated to the recommended pressure according to the vehicle load. See the &q ...

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 ...