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Chassis
The Volvo XC90 is designed for all types of roads, irrespective of the surface beneath the tyres or the weather conditions. Even though it was never designed to be a serious off-roader, the Volvo ...

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 ...

Function check
All indicator and warning symbols light up in ignition mode II or when the engine is started. When the engine has started, all the symbols should go out except the parking brake symbol, which o ...