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:
Fuel requir
Deposit control gasoline (detergent
additives)
Volvo recommends the use of detergent gasoline
to control engine deposits. Detergent
gasoline is effective in keeping injectors and
intake valves cl ...
Ignition mode 0
- Insert the remote key in the ignition slot and
press it in as far as possible. ...
Interior lighting, front
Light switches, front roof lighting
1 - Drivers side front reading light, on/off
2 - Passenger's side front reading light, on/off
3 - Overhead courtesy lighting.
The lighting in the front pa ...
