Volvo S40 Automobile User Manual


 
07 Wheels and tyres
152
Tyre pressure
07
Recommended tyre pressure
The tyre pressure label on the driver’s side
door pillar shows which pressures the tyres
should have at different load and speed con-
ditions.
Stated on the decal:
Tyre pressure for the car’s recommended
wheel size
ECO pressure
Spare wheel pressure (Temporary Spare).
Checking the tyre pressure
Check the tyre pressure regularly.
Even after several kilometres of driving the
tyres warm up and the pressure increases, so
air must not be released if the pressure is
checked when the tyres are warm, while the
pressure must be increased if it is too low. In-
adequately inflated tyres adversely affect fuel
consumption, tyre lifespan and the car’s
roadholding. Driving on tyres with tyre pres-
sure that is too low can also result in the tyres
overheating and disintegrating.
For information on the correct tyre pressure,
refer to the tyre pressure table on page 153.
("Cold tyres" means the tyres are the same
temperature as the ambient temperature.)
Fuel economy, ECO pressure
At speeds under 160 km/h, the general tyre
pressure for full load is recommended in or-
der to obtain optimum fuel economy.
Tyre pressure affects travelling comfort, road
noise and steering characteristics.
NOTE
Tyre pressure decreases over time, this is a
natural phenomenon. Tyre pressure also
varies depending on ambient temperature.