VOLVO S80 2005 Repair Manual

The Comfort mode chassis setting offers the greatest amount of shock absorption and the softest ride. This mode is
recommended for long-distance driving, or when driving in slippery conditions.
If Comfort mode was selected when the engine was switched off, this mode will be active when the engine is restarted.
Sport
An indicator lamp in the button will come on when this mode has been activated.
In Sport mode, shock absorption is stiffer to reduce the car's body sway during cornering and to provide more
immediate steering response.
If this setting was selected when the engine was switched off, Sport mode will be active when the engine is restarted.
pg. 83 Front/rear park assist (option/accessory)
A - front (accessory as available), B - rear (option)
Front/rear park assist
The park assist system(s) are designed to assist you when driving into parking spaces, garages, etc. They utilize
ultrasound sensors located in the bumpers to measure the distance to a vehicle or other object, or a person who may be
close to the front or rear of the vehicle.
When is park assist active?
Front: the system is active from the time the engine is started until the car exceeds a speed of approximately 10 mph
(15 km/h).
Rear: when the engine is running and reverse gear is selected.
NOTE:
· If the vehicle is equipped with front and rear park assist, both systems will either be activated or deactivated together.
They cannot be used separately.
· The indicator light in the button (see the illustration on page 31
) will light up to indicate that park assist system(s) are
activated.
When park assist is actively working:
1. The audio system's volume will be reduced.
2. An intermittent signal will be audible from the speakers to indicate that you are approaching a person, object,
parked vehicle, etc.
The signals begin when the distance between the bumper and the object is:
Rear: approximately 5 feet (1.5 meters)
Front: approximately 2.5 ft (0.8 meters)
3. At a distance of approximately 1 foot (30 cm), the signal will become constant.
Deactivating the system(s)
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· Press the Park assist button on the center console (see page 31) to temporarily deactivate the system(s).
· The indicator light in the button will go out when the system(s) have been deactivated.
· If the vehicle is equipped with front and rear park assist, both systems will be deactivated by pressing the button.
NOTE:
It may be necessary to deactivate one or both of the park assist systems in certain cases.
· Rear park assist: towing a trailer, carrying bicycles in a rear-mounted carrier, etc, could trigger the rear park assist
system's sensors.
· Front park assist: it may not be possible to combine auxiliary headlights and front park assist since these lights
could trigger the system's sensors.
Faults in the system
If a fault should occur in the system, the LED in the button will be switched off and a message will be displayed in the
text window.
Cleaning the sensors
For the system to function properly, the sensors in the front and/or rear bumpers should be kept clean. They can be
cleaned with car washing detergent and a sponge.
WARNING!
These systems are designed to be a supplementary aid when parking the vehicle. They are not, however, intended to
replace the driver's attention and judgement.
pg. 84 Driving economy
Economical driving conserves natural resources
Better driving economy may be obtained by thinking ahead, avoiding rapid starts and stops and adjusting the speed of
your vehicle to immediate traffic conditions. Observe the following rules:
Bring the engine to normal operating temperature as soon as possible by driving with a light foot on the accelerator
pedal for the first few minutes of operation. A cold engine uses more fuel and is subject to increased wear.
Whenever possible, avoid using the car for driving short distances. This does not allow the engine to reach normal
operating temperature.
Drive carefully and avoid rapid acceleration and hard braking.
Do not exceed posted speed limits.
Avoid carrying unnecessary items (extra load) in the car.
Maintain correct tire pressure. Check tire pressure regularly (when tires are cold).
Remove snow tires when threat of snow or ice has ended.
Note that roof racks, ski racks, etc., increase air resistance and also fuel consumption.
Avoid using automatic transmission kickdown feature unless necessary.
Avoid using the air conditioning when it is not required. When engaged, the A/C compressor places an additional
load on the engine. However, at higher driving speeds, fuel consumption will be lower with the air conditioning on and
the windows closed than with the air conditioning off and the windows open.
Using the onboard trip computer's fuel consumption modes can help you learn how to drive more economically.
Other factors that decrease gas mileage are:
Dirty air cleaner
Dirty engine oil and clogged oil filter
Dragging brakes
Incorrect front end alignment
Some of the above mentioned items and others are checked at the standard Maintenance Service intervals.
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NOTE: Vehicles equipped with automatic transmissions should use (D)rive as often as possible and avoid using
"kickdown" to help improve fuel economy.
Cooling system
The risk for engine overheating is greatest, especially in hot weather, when:
Towing a trailer up steep inclines for prolonged periods at wide open throttle and low engine rpm.
Stopping the engine suddenly after high speed driving (so-called "after-boiling" can occur).
To avoid overheating, the following rules should be followed:
Do not drive for prolonged periods at engine speeds above 4500 rpm if you are towing a trailer in hilly terrain.
Reduce speed when towing a trailer up long, steep inclines. The risk of overheating can be reduced by switching off
the air conditioning system for a short time.
Do not let the engine idle unnecessarily for prolonged periods.
Do not mount auxiliary lamps in front of the grill.
When the risk of overheating is imminent, or in the event of overheating (the temperature gauge goes repeatedly into,
or stays continually in, the red section), the following precautions should be taken:
Switch off the air conditioning system.
Pull off the road, away from traffic, stop the car and put the gear selector into Park. Do not stop the engine!
Switch the heater to full (maximum) position. Increase the engine speed to approx. 2000 rpm (twice idling speed)
until the temperature begins to drop.
If the warning light in the center of the instrument panel is red, and the message "Coolant level low stop engine" is
displayed, switch off the engine as soon as possible.
WARNING!
Do not remove coolant expansion tank cap. The coolant will be extremely hot.
If necessary, see page 132
for information on checking and topping-up the coolant level.

Contents | Top of Page
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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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Hitting curbs or potholes can damage the tires and/or wheels permanently.
pg. 99 Wheels and tires
Tire inflation
Check tire inflation pressure regularly.
A table listing the recommended inflation pressure for your vehicle can be found on page 101.
Tire inflation pressure
placards are also located on the driver's side 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. These placards indicate the
designation of the factory-mounted tires on your vehicle, as well as load limits and inflation pressure.
NOTE: The placards shown indicate inflation pressure for the tires installed on the car at the factory only.
• Use a tire gauge to check the tire inflation pressure, including the spare, at least once a month and before long trips.
You are strongly urged to buy a reliable tire pressure gauge, as automatic service station gauges may be inaccurate.
• Use the recommended cold inflation pressure for optimum tire performance and wear.
• Under-inflation or over-inflation may cause uneven treadwear patterns.
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WARNING!
- Under-inflation is the most common cause of tire failure and may result in severe tire cracking, tread separation, or
"blowout," with unexpected loss of vehicle control and increased risk of injury.
- Under-inflated tires reduce the load carrying capacity of your vehicle.
When weather temperature changes occur, tire inflation pressures also change. A 10-degree temperature drop causes a
corresponding drop of 1 psi (7 kPa) in inflation pressure. Check your tire pressures frequently and adjust them to the
proper pressure, which can be found on the vehicle's tire information placard or certification label.
Checking tire pressure
Cold tires
Inflation pressure should be checked when the tires are cold.
The tires are considered to be cold when they have the same temperature as the surrounding (ambient) air.
This temperature is normally reached after the car has been parked for at least 3 hours.
pg. 100 Wheels and tires
After driving a distance of approximately 1 mile (1.6 km), the tires are considered to be hot. If you have to drive
farther than this distance to pump your tire(s), check and record the tire pressure first and add the appropriate air
pressure when you get to the pump.
If checking tire pressure when the tire is hot, never "bleed" or reduce air pressure. The tires are hot from driving and it
is normal for pressures to increase above recommended cold pressures. A hot tire at or below recommended cold
inflation pressure could be significantly under-inflated.
To check inflation pressure:
1. Remove the cap from the valve on one tire, then firmly press the tire gauge onto the valve.
2. Add air to reach the recommended air pressure
3. Replace the valve cap.
4. Repeat this procedure for each tire, including the spare.
5. Visually inspect the tires to make sure there are no nails or other objects embedded that could puncture the tire and
cause an air leak.
6. Check the sidewalls to make sure there are no gouges, cuts, bulges or other irregularities.
NOTE:
• If you overfill the tire, release air by pushing on the metal stem in the center of the valve. Then recheck the pressure
with your tire gauge.
• Some spare tires require higher inflation pressure than the other tires. Consult the tire inflation table on page 101
or
see the inflation pressure placard.
pg. 101 Wheels and tires
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Tire inflation pressure tables
Tire pressures recommended by Volvo for your vehicle. Refer to the tire inflation placard for information specific to
the tires installed on your vehicle at the factory.Cold tire pressure for vehicle loads up to 890 lbs (400 kg)
1
Tire size Front, psi (kPa)Rear, psi (kPa)
S80
205/65R15 39 (270)39 (270)
215/55R16 39 (270)39 (270)
225/50R17 39 (270)39 (270)
235/45R17 SSRFT
239 (270) 39 (270)
235/40R18 39 (270)39 (270)
Temporary spare tire
T125/80R17 61 (420)
61 (420)
1 These weights include the weight of all occupants of the car plus cargo.
2 Self supporting run flat tires. See page 103 for more information.
Optional tire pressure. These inflation pressures may only be used when the vehicle is not fully loaded. Optional cold tire pressure that may only be used for vehicle loads up to 495 lbs (225 kg). psi (kPa)
Tire size Front, psi (kPa)Rear, psi (kPa)
S80
205/65R15 32 (220)30 (210)
215/55R16 32 (220)30 (210)
225/50R17 32 (220)30 (210)
235/45R17 RFT (SST) --
235/40R18 35 (240)35 (240)
Temporary spare tire
T125/80R17 61 (420)
61 (420)
pg. 102 Wheels and tires
Tire Pressure Monitoring System (TPMS) - option on certain U.S. models only
The tire pressure monitoring system uses sensors mounted in the tire valves to check inflation pressure levels. When
the vehicle is moving at a speed of 20 mph (30 km/h) or faster, these sensors transmit inflation pressure data to a
receiver located in the vehicle.
USA - FCC ID: MRXTG315AM04
This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
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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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run flat tires.
Tires of this type have specially reinforced sidewalls that make it possible to continue driving in the event of a drop in
inflation pressure. Tires of this type are mounted on special rims.
NOTE: Self supporting run flat tires are only available in conjunction with TPMS.
If a self supporting run flat tire should lose inflation pressure, the yellow TPMS warning symbol (
) in the
instrument panel lights up to alert the driver, and a message will be shown in the text window in the instrument panel.
If this occurs, reduce vehicle speed to a maximum of 50 mph (80 km/h). The vehicle can be driven approximately 50
miles (80 km), or somewhat farther if the vehicle is not heavily loaded. The tire should be replaced as soon as
possible.
Hard braking and sudden steering maneuvers should be avoided.
In certain cases, it may be difficult to see which self supporting run flat tire is defective. To determine which tire is
damaged, check the inflation pressure of all four tires.
WARNING!
• Only specially trained persons should mount self supporting run flat tires.
• If self supporting run flat tires are mounted, the vehicle must be equipped with a Tire Pressure Monitoring System.
• After a low pressure warning has been displayed, do not exceed 50 mph (80 km/h).
• Avoid severe cornering and hard braking, and minimize the distance traveled before replacing the self supporting
run flat tire.
• Self supporting run flat tires cannot be repaired. They must be replaced if damaged or punctured.
pg. 104 Wheels and tires
Tire designations
Federal law mandates that tire manufacturers place standardized information on the sidewall of all tires (see the
illustration).
The following information is listed on the tire sidewall:
The tire designation (the following figures are examples of a tire designation):
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