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:
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 ...
Arming the alarm
Press the Lock button on the remote key. One long flash of the turn signals
will confirm that the alarm is armed.
Alarm confirmation settings can be changed in MY CAR, under Car settings
- ...
General functions
RADIO button for selecting the AM, FM1, FM2, Sirius1* or Sirius2* wavebands.
Number key buttons (0-9)
Navigate among the menu alternatives in the display by turning TUNE.
Confirm your selec ...
