Power brakes function only when the engine is running

The power brakes utilize vacuum pressure which is only created when the engine is running. Never let the vehicle roll to a stop with the engine switched off.
If the power brakes are not working, considerably higher pressure will be required on the brake pedal to compensate for the lack of power assistance. This can happen for example when towing your vehicle or if the engine is switched off when the vehicle is rolling. The brake pedal feels harder than usual.
See also:
Limitations
Even if a fairly small section of the screen image
appears to be obstructed, this may mean that
a relatively large area behind the vehicle is hidden
and objects there may not be detected
until ...
Touching up paintwork
Paint code on the model plate
Paint damage requires immediate attention to avoid rusting. Make it a habit to
check the finish regularly, for instance washing the vehicle. Touch-up if necessary.
...
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 ...
