See also:

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, co ...

Cleaning the interior
Only use cleaning agents and car care products recommended by Volvo. Clean regularly and follow the instructions included with the car care product. ...

Methanol
Do not use gasolines containing methanol (methyl alcohol, wood alcohol). This practice can result in vehicle performance deterioration and can damage critical parts in the fuel system. Such dam ...