See also:

Emission inspection readiness
What is an Onboard Diagnostic System (OBD II)? OBD II is part of your vehicle's computerized engine management system. It stores diagnostic information about your vehicle's emission controls. It ...

Comfort and convenience
While the interior of the Volvo S40 places an emphasis on style, form has not been allowed to take precedence over function. The fascia ergonomics have been carefully designed and drivers will fin ...

Power windows
The power windows are controlled by buttons in the arm rests. The ignition switch must be ON1 (ignition key in position I, II or the engine running) for the electrically operated windows to functi ...