See also:

Interior Air Quality System (IAQS)
A multifilter helps reduce gases and particles in the incoming air, thereby reducing the levels of odors and contaminants entering the vehicle. The air quality sensor detects increased levels o ...

Cold weather precautions
If you wish to check your vehicle before the approach of cold weather, the following advice is worth noting: • Make sure that the engine coolant contains 50 percent antifreeze. Any other mixture ...

Driving Dynamics: Engines
The Volvo S40 is available with a range of high-tech engines that reflect its role as a premium alternative. Three new engines joined the range in 2007: a 145 PS 2.0-litre petrol, a five-cylinder ...