
2 0 0 5 
VOLVO S80
Chapter 7 - Wheels and tires
pg. 97 Wheels and tires
General  information98
Tire inflation99
Tire inflation pressure tables101
Tire Pressure Monitoring System (TPMS)102
Self supporting run flat  tires103
Tire designations104
Glossary of tire terminology105
Vehicle loading106
Uniform tire quality  grading107
Snow chains, snow tires, studded tires108
Temporary spare109
Changing a wheel110
pg. 98 Wheels and tires
General  information
Your vehicle is equipped with tires according  to the vehicle's tire information placard  on the B-pillar (the structural
member at the side of the vehicle, at the rear of the driver's door opening), or on the inside of the fuel filler  door on
Canadian models.
The tires have good road holding characteristics and  offer  good handling on dry and  wet  surfaces. It should be  noted
however  that the tires have been developed to give these features on snow/ice-free surfaces.
Certain  models are equipped with "all-season"  tires, which  provide a  somewhat higher degree of road holding on
slippery surfaces than tires without the "all-season"  rating. However, for optimum road holding on icy or snow-
covered roads, we recommend suitable winter tires on all four wheels.
When replacing tires, be  sure that the new tires are the same size designation, type (radial)  and  preferably from  the
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same manufacturer, on all four wheels. Otherwise there is a  risk of altering the car's roadholding and  handling
characteristics.
NOTE: When storing wheel/tire assemblies (e.g. winter tires and  wheels), either stand the assemblies upright, or
suspend them off the ground. Laying wheel/tire assemblies on their sides for prolonged periods  can cause wheel and/or
tire damage.
Tread wear indicator
The tires have wear  indicator strips running across or parallel to the tread. The letters  TWI are printed on the side of
the tire. When approximately 1/16" (1.6 mm) is left on the tread, these strips become visible and  indicate that the tire
should be  replaced.  Tires with less than 1/16" (1.6 mm) tread offer  very poor traction.
When replacing worn tires, it is recommended that the tire be  identical  in type (radial)  and  size as the one  being
replaced.  Using a  tire of the same make (manufacturer) will prevent alteration of the driving characteristics of the
vehicle.
New tires
Remember that tires are perishable goods. As of 2000, the manufacturing week and  year will be  indicated with 4 digits
(e.g. 1502 means that the tire illustrated was manufactured during week 15 of 2002).
Improving tire economy:
• Maintain correct tire pressure. See  the tire pressure table  on page 101.
• Drive smoothly:  avoid fast  starts, hard braking and  tire screeching.
• Tire wear  increases with speed.
• Correct front  wheel alignment is very important.
• Unbalanced wheels impair tire economy and  driving comfort.
• Tires must  maintain the same direction of rotation throughout their lifetime.
• When replacing tires, the tires with the most  tread should be  mounted on the rear wheels to reduce the chance of
oversteer during hard braking.
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When low inflation pressure is detected, TPMS will light up the tire pressure warning light () in the instrument
panel, and  will display a  message in the text window. The wording of this  message is determined by the degree of
inflation pressure loss.
When the tire pressure monitoring  system warning light is on, one  or more of your tires is significantly under-inflated.
You should stop and  check your tires as soon as possible, and  inflate them to the proper pressure as indicated on the
vehicle's tire information placard.
Driving on a  significantly under-inflated tire causes the tire to overheat  and  can lead to tire failure. Under-inflation
also reduces fuel efficiency and  tire tread life, and  may affect the vehicle's handling and  stopping  ability. Each tire,
including the spare, should be  checked monthly when cold and  set to the recommended inflation pressure as specified
in the vehicle placard  and  owner's  manual.
NOTE:  TPMS indicates low tire pressure but does not replace  normal tire maintenance. For information on correct tire
pressure, please refer  to the table  on page 101
, or consult your Volvo retailer.
Erasing warning messages
When a  low tire pressure warning message has been displayed, and  the tire pressure warning light has come on:
1. Use a  tire pressure gauge to check the inflation pressure of all four tires.
2. Re-inflate the tire(s) to the correct pressure (consult the tire pressure placard  or the table  on page 101
).
3. Drive the car for at least one  minute at a  speed of 20 mph (30 km/h) or faster.
This will erase the warning text and  the warning light will go out.
WARNING!
Incorrect inflation pressure could lead to tire failure, resulting in a  loss of control of the vehicle.
Changing tires  
Please note the following when changing or replacing the factory installed TPMS wheels/tires on the vehicle: 
Only the factory-mounted wheels are equipped with TPMS sensors  in the valves. 
If the vehicle is equipped with a  temporary spare tire, this  tire does not have a  TPMS sensor. 
If, for example, winter wheels/tires are used that are not equipped with TPMS sensors,  the message TIRE PRESSURE
SYSTEM  SERVICE REQUIRED will be  displayed after the car has been driven for several minutes at approximately
35 mph (50 km/h) or faster. 
This message will remain on until wheels with TPMS sensors  are mounted on the vehicle and  it has been driven for at
least one  minute at a  speed of 20 mph (30 km/h) or faster. 
TPMS valves can be  fitted on winter wheels or full-size spare wheels/tires. Consult your Volvo retailer.
CAUTION!  
When inflating tires with TPMS valves, press the pump's mouthpiece straight onto the valve to help avoid bending or
otherwise damaging  the valve.
pg. 103 Wheels and tires
Self supporting run flat  tires (option)
Certain  models equipped with the Tire Pressure Monitoring System  (TPMS) can also be  equipped with self  supporting
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Consult your Volvo retailer for additional snow chain information.
CAUTION!
• Check local  regulations  regarding the use of snow chains before installing.
• Always follow the chain manufacturer's installation  instructions carefully. Install chains as tightly as possible and
retighten periodically.
• Never  exceed the chain manufacturer's specified maximum speed limit. (Under no circumstances should you exceed
31 mph (50 km/h)).
• Avoid bumps, holes or sharp turns when driving with snow chains.
• The handling of the vehicle can be  adversely affected when driving with chains. Avoid fast  or sharp turns as well as
locked wheel braking.
Snow tires, studded tires
1
Tires for winter use:
• Owners who live in or regularly commute through areas with sustained periods  of snow or icy driving conditions are
strongly advised to fit suitable winter tires to help retain the highest degree of traction.
• It is important to install  winter tires on all four wheels to help retain traction during cornering, braking, and
accelerating. Failure to do so could reduce traction to an  unsafe level  or adversely affect handling.
• Do not mix tires of different  design as this  could also negatively affect overall tire road grip.
• Winter tires wear  more quickly on dry roads in warm weather. They should be  removed when the winter driving
season has ended.
• Studded tires should be  run-in 300-600 miles (500-1000 km) during which  the car should be  driven as smoothly as
possible to give the studs the opportunity to seat properly in the tires. The tires should have the same rotational
direction throughout their entire lifetime.
NOTE: Please consult state or provincial regulations  restricting the use of studded winter tires before installing such
tires.
1 Where permitted
pg. 109 Wheels and tires
Temporary Spare 
The spare tire in your car is called a  "Temporary Spare". 
Recommended tire pressure (see the placard  on the B-pillar or on the fuel filler  door) should be  maintained  irrespective
of which  position on the car the temporary spare tire is used on. 
In the event of damage to this  tire, a  new one  can be  purchased from  your Volvo retailer.
WARNING!
Current legislation prohibits the use of the "Temporary Spare" tire other than as a  temporary replacement  for a
punctured tire. It must  be  replaced  as soon as possible by a  standard tire. Road holding and  handling may be  affected
with the "Temporary Spare" in use. Do not exceed 50 mph (80 km/h). Do not drive farther than 50 miles (80 km) on
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the base of the jack to the ground. The base of the jack must be flat  on a level,  firm, non-slippery  surface. Before
raising  the car, check  that the jack is still correctly positioned in the attachment.
 Raise the vehicle until the wheel to be  changed is lifted off the ground.
 Unscrew the wheel bolts  completely  and  carefully remove the wheel so as not to damage the thread on the studs.
Attaching the jack
NOTE: To avoid excessive wear  and  the necessity of rebalancing, mark and  reinstall wheels in the same location and
position as before removal. To lessen  the chance of imbalance, each wheel hub is equipped with a  guide stud to ensure
that a  removed wheel can be  reinstalled in its  original position (as when changing over to winter tires/wheels).
pg. 111 Changing wheels
Correct tightening order for wheel bolts
Installing the wheel
 Clean the contact surfaces on the wheel and  hub.
 Lift the wheel and  place it on the hub.
 Install the wheel bolts  and  tighten hand -tight. Using the lug wrench,  tighten crosswise (see illustration above) until
all bolts  are snug.
 Lower the vehicle to the ground and  alternately tighten the bolts  crosswise to 102 ft. lbs. (140 Nm).
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Trailer towing..........89
Trailer weight - maximum..........145
Transmission - automatic..........77,  81, 82
Transmission fluid (automatic)..........147
Trip computer..........32
Trip odometer..........27
Trunk  - opening from  the inside..........65
Trunk  - unlocking with master key..........65
Trunk  lights - replacing..........124
Turn  signal bulbs (front)..........120
U
Unlocking the trunk with key..........65
Upholstery  - cleaning..........129
V
Vanity mirror lights - replacing..........122
Vehicle Identification Number (VIN)..........144
Vehicle loading..........148
Ventilation..........46
Ventilation hose, battery ........139
Volumes (oils and  fluids) ........147
Volvo On Call..........150
W
Warning lights..........28, 29
Warranty..........130
Washer fluid reservoir..........134
Washer fluid solvent..........93
Washing the car..........127 - 129
Water  repellent glass..........128
Waxing..........128
Weight  distribution..........85
Weights..........145
Wheels - changing..........110, 111
Wheels and  tires..........98 - 111
Whiplash Protection System  (WHIPS)..........12
Windows - electrically  operated..........41
Windshield washer solvent ........ 93
Windshield wiper blades - replacing..........141
Windshield wipers/washers..........37
Winter driving..........93
Winter/Wet driving mode..........77, 79, 81
Wiper blades - replacing..........141
   
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