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:
Under the glove compartment
boxes.
1. Press the cover's lock and fold it up.
2. The fuses are accessible.
Positions-fuse box A
Positions-fuse box B
...
Volvo and the environment
Volvo is committed to the well being of its customers.
As a natural part of this commitment,
we care about the environment in which we all
live. Caring for the environment means an
everyday inv ...
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 control ...
