Volvo 2003 V40 Operation And Care Manual page 40

Special Spare The spare tire in your car is called a "Special Spare". It has the following designation: 125/90 R15 96M.
Recommended tire pressure (see the bottom line of the decal on the fuel filler door) should be maintained irrespective
of which position on the car the Special Spare tire is used.
In the event of damage to this tire, a new one can be purchased from your Volvo retailer.
CAUTION: The car must not be driven with wheels of different dimensions or with a spare tire other than the one that
came with the car. The use of different size wheels can seriously damage your car's transmission.
WARNING!
Current legislation prohibits the use of the "Special Spare" tire other than as a temporary replacement for a punctured
tire. In other words, it must be replaced as soon as possible by a standard tire. Roadholding, etc., may be affected
with the "Special Spare" in use. Do not, therefore, exceed 50 mph (80 km/h).
CAUTION: We recommend that you switch the DSA system off whenever you use the "Special Spare" tire that does
not match the diameter of your other tires. See page 30.
Contents | Top of Page