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2006 VOLVO V70
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, the brake pedal must be pressed approximately four times harder
than usual to make up 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.
Water on brake discs and brake pads affects braking
Driving in rain and slush or passing through an automatic car wash can cause water to collect on the
brake discs and pads. This will cause a delay in braking effect when the pedal is depressed. To avoid
such a delay when the brakes are needed, depress the pedal occasionally when driving through rain,
slush etc. This will remove the water from the brakes. Check that brake application feels normal. This
should also be done after washing or starting in very damp or cold weather.
Severe strain on the brake system
The brakes will be subject to severe strain when driving in mountains or hilly areas or towing. Vehicle
speed is usually slower, which means that the cooling of the brakes is less efficient than when driving on
level roads. To reduce the strain on the brakes, shift into a lower gear and let the engine help with the
braking. Do not forget that, if you are towing a trailer, the brakes will be subjected to a greater than
normal load.
pg. 114 Anti-lock Brake System (ABS)
Anti-lock Brake System (ABS)
If the warning lamp lights up there is a malfunction of the ABS system (the standard braking system will
however function) and the vehicle should be driven cautiously to a Volvo retailer for inspection. The
Anti-lock Braking System (ABS) helps to improve vehicle control (stopping and steering) during severe
braking conditions by limiting brake lockup. When the system "senses" impending lockup, braking
pressure is automatically modulated in order to help prevent lockup, which could lead to a skid.
The system performs a self-diagnostic test when the engine is started and when the vehicle first reaches
a speed of approximately 12 mph (20 km/h). The brake pedal will pulsate several times and a sound may
be audible from the ABS control module. This is normal. To obtain optimal effect from the ABS system,
constant pressure should be kept on the brake pedal. Do not pump the brake pedal. The switching of the
ABS modulator will be audible and the brake pedal will pulsate during braking. Please be aware that
ABS does not increase the absolute braking potential of the vehicle. While control will be enhanced,
ABS will not shorten stopping distances on slippery surfaces.
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