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:
Driver support systems
MY CAR
Support systems
(MY CAR > Support systems)
The screen shows the current status (settings)
for the vehicle's driver support systems. ...
Design concept
Volvo's design language, created under the design directorship of Peter
Horbury, reached its zenith in the Volvo C30 when it was launched in 2006. 'We
were a bit more playful, less formal and more a ...
Accessory installation
• We strongly recommend that Volvo owners
install only genuine, Volvo-approved
accessories, and that accessory installations
be performed only by a trained and
qualified Volvo service technici ...
