2006 VOLVO S40 tires

ready access.
Do not export your Volvo to another country before investigating that country's applicable safety and emission
control requirements. In some cases it may be difficult or impossible to comply with these requirements. Modifications
to the emission control system(s) may render your Volvo not certifiable for legal operation in the U.S., Canada and
other countries.
All information, illustrations and specifications contained in this manual are based on the latest product information
available at the time of publication. Please note that some vehicles may be equipped differently, depending on special
legal requirements. Optional equipment described in this manual may not be available in all markets.
Volvo reserves the right to make model changes at any time, or to change specifications or design without notice and
without incurring obligation.
WARNING!
If your vehicle is involved in an accident, unseen damage may affect its driveability and safety.
Introduction
WARNING!
CALIFORNIA proposition 65
Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the
state of California to cause cancer, and birth defects or other reproductive harm. In addition, certain fluids contained
in vehicles and certain products of component wear contain or emit chemicals known to the State of California to
cause cancer, and birth defects or other reproductive harm.
Volvo and the environment
Volvo is committed to the well being of its customers. As a natural part of this commitment, we care about the
environment in which we all live. Caring for the environment means an everyday involvement in reducing our
environmental impact. Volvo's environmental activities are based on a holistic view, which means we consider the
overall environmental impact of a product throughout its complete life cycle. In this context, design, production,
product use, and recycling are all important considerations. In production, Volvo has partly or completely phased out
several chemicals including freons, lead chromates, naphtanates, asbestos, mercury and cadmium; and reduced the
amount of chemicals used in our plants 50% since 1991.
Volvo was the first in the world to introduce into production a three-way catalytic converter with a Lambda sond, now
called the heated oxygen sensor, in 1976. The current version of this highly efficient system reduces emissions of
harmful substances (CO, HC, NOx) from the exhaust pipe by approximately 95% and the search to eliminate the
remaining emissions continues. Volvo is the only automobile manufacturer to offer CFC-free retrofit kits for the air
conditioning system of all models as far back as the 1975 model 240. Advanced electronic engine controls, refined
purification systems and cleaner fuels are bringing us closer to our goal. After Volvo cars and parts have fulfilled their
use, recycling is the next critical step in completing the life cycle. The metal content is about 75% of the total weight
of a car, which makes the car among the most recycled industrial products. In order to have efficient and well
controlled recycling, many Volvo variants have printed dismantling manuals, indicating the weight and material of
individual components. For Volvo, all homogeneous plastic parts weighing more than 1.7 oz. (50 grams) are marked
with international symbols that indicate how the component is to be sorted for recycling. In addition to continuous
environmental refinement of conventional gasoline-powered internal combustion engines, Volvo is actively looking at
advanced technology alternative-fuel vehicles.
When you drive a Volvo, you become our partner in the work to lessen the car's impact on the environment. To reduce
your vehicle's environmental impact, you can:
Maintain proper air pressure in your tires. Tests have shown decreased fuel economy with improperly inflated tires.
Follow the recommended maintenance schedule in your Warranty and Service Records Information booklet.
ProCarManuals.com

Drive at a constant speed whenever possible.
See a trained and qualified Volvo service technician as soon as possible for inspection if the check engine
(malfunction indicator) lamp illuminates, or stays on after the vehicle has started.
Properly dispose of any vehicle-related waste such as used motor oil, used batteries, brake pads, etc.
Introduction
When cleaning your car, use Volvo's own car care products, all of which have systematically been adapted to the
environment.
PremAir®
The surface of the radiator in the engine compartment is treated with a special coating called Premair
1. This coating
works as a catalytic converter, converting most of the ground level ozone passing through the radiator into oxygen,
thereby reducing harmful ground-level ozone.
1. PremAir is a registered trademark of Engelhard Corporation.
Contents
Contents
Chapter 1 - Instrument overview
Chapter 2 - Safety
Chapter 3 - Instruments and controls
Chapter 4 - Climate
Chapter 5 - Interior
Chapter 6 - Locks and alarm
Chapter 7 - Starting and driving
Chapter 8 - Wheels and tires
Chapter 9 - Vehicle care
Chapter 10 - Maintenance and servicing
Chapter 11 - Audio
Chapter 12 - Specifications
Index
Top of Page
ProCarManuals.com

12 volt socket, stability system, auxiliary equipment
12 volt sockets
The 12 volt sockets can be used to plug in certain accessories such as cellular telephones, etc. The key must be in
position I (or higher) for the auxiliary socket to function. The auxiliary sockets can also be used for cigarette lighters,
which are available at your Volvo retailer.
NOTE: The cover should be kept on when the auxiliary socket is not in use.
Stability system STC or DSTC
The stability system - Stability and Traction Control (STC), or the optional Dynamic Stability and Traction Control
(DSTC) - activate automatically when the car is started. In certain situations, it may be necessary to disable the
system's anti-spin function, for example, while driving for a short period with tires of different dimensions.
To disable the anti-spin function:
Press the STC
1 or DSTC button for approximately one second. The indicator light in the button will go out, and
STC/DSTC SPIN CONTROL OFF will be shown in the information display.
1. Models equipped with All Wheel Drive (AWD) have an integrated traction control function, and are not equipped
with an STC button. DSTC is optional.
WARNING!
The car's handling and stability characteristics will be altered with the anti-spin function disabled.
NOTE: The anti-spin function will be automatically reactivated when the engine is started.
Auxiliary equipment
The button to the right of the STC/DSTC button can be used for Volvo-installed optional or auxiliary equipment.
pg. 41 Lighting panel
ProCarManuals.com

in either direction. Twisting a fifth time (sixth time on Canadian models) returns you to the original function.
The trip computer can be reset (average fuel consumption and average speed will be erased from system memory) by
pressing RESET (C) for at least five seconds.
Driving distance on current fuel reserve
This function shows the approximate distance that can be driven on the fuel remaining in the tank. This calculation is
based on average fuel consumption during the last 20 miles (30 km) of driving and the amount of fuel remaining in the
tank when the reading was taken. When the driving distance on current fuel reserve is less than 12 miles (20 km), "---"
will be displayed in the information display.
Average fuel consumption
This value indicates fuel consumption since the last time the trip computer was reset (by pressing RESET, button C).
When the engine is switched off, information on fuel consumption is stored and remains in system memory until the
RESET (button C) is pressed again.
Current fuel consumption
This value indicates the current fuel consumption, based on readings taken once per second. When the car is not
moving, "----" will be displayed.
Average speed
This value indicates average speed since the last time the trip computer was reset (by pressing RESET, button C).
When the engine is switched off, information on average speed is stored and remains in system memory until the
RESET (button C) is pressed again.
Current speed in m.p.h. (Canadian models only)
This function provides the driver with an instantaneous conversion of the car's current speed from km/h to m.p.h.
NOTE: Trip computer readings may vary slightly depending on the circumference of the tires on the car or on tire
inflation.
pg. 44 Cruise control (option)
Cruise control
The cruise control buttons are located on the left side of the steering wheel hub.
Engaging the cruise control function
1. Press the CRUISE button. CRUISE will appear in the function display in the center of the instrument panel.
NOTE: This does not set the vehicle's speed.
2. Press + or - to set the current speed. CRUISE ON will be displayed.
ProCarManuals.com

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 vehicle for driving short distances. This does not allow the engine to reach
normal operating temperature.
Drive carefully and avoid rapid acceleration and hard braking.
Use the transmission's (D)rive position as often as possible and avoid using kickdown.
Do not exceed posted speed limits.
Avoid carrying unnecessary items (extra load) in the vehicle.
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.
At highway 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 intervals.
Weight distribution affects handling
At the specified curb weight your vehicle has a tendency to understeer, which means that the steering wheel has to be
turned more than might seem appropriate for the curvature of a bend. This ensures good stability and reduces the risk
of rear wheel skid. Remember that these properties can alter with the vehicle load. The heavier the load in the cargo
area, the less the tendency to understeer.
WARNING!
Driving with the trunk open: Driving with the trunk open could lead to poisonous exhaust gases entering the
passenger compartment. If the trunk must be kept open for any reason, proceed as follows:
Close the windows
Set the ventilation system control to air flow to floor, windshield and side windows and the blower control to its
highest setting.
CAUTION!
Drive slowly and carefully if going through standing water (i.e. flooded roadways, etc.). Damage to the engine could
result if excess water is drawn in through the air intake system. Never drive the vehicle in water deeper than 18
inches (48 cm).
pg. 93 General information
Handling, roadholding
Vehicle load, tire design and inflation pressure all affect vehicle handling. Therefore, check that the tires are inflated to
the recommended pressure according to the vehicle load. See the "Tire pressure" section. Loads should be distributed
so that capacity weight or maximum permissible axle loads are not exceeded.
Cold weather precautions
If you wish to check your vehicle before the approach of cold weather, the following advice is worth noting:
Make sure that the engine coolant contains 50 percent antifreeze. Any other mixture will reduce freeze protection.
This gives protection against freezing down to -31°F (-35°C). See section "Coolant". The use of "recycled" antifreeze
ProCarManuals.com

is not approved by Volvo. Different types of antifreeze must not be mixed.
Volvo recommends using only genuine Volvo antifreeze in your vehicle's radiator.
Try to keep the fuel tank well filled - this prevents the formation of condensation in the tank. In addition, in
extremely cold weather conditions it is worthwhile to add fuel line de -icer before refueling.
The viscosity of the engine oil is important. Oil with low viscosity (thinner oil) improves cold-weather starting as
well as decreasing fuel consumption while the engine is warming up. For winter use, 5W -30 oil, particularly the
synthetic type
1 , is recommended. Be sure to use good quality oil but do not use cold-weather oil for hard driving or in
warm weather. See page 179
for more information.
The load placed on the battery is greater during the winter since the windshield wipers, lighting, etc. are used more
often. Moreover, the capacity of the battery decreases as the temperature drops. In very cold weather, a poorly charged
battery can freeze and be damaged. It is therefore advisable to check the state of charge more frequently and spray an
anti-rust oil on the battery posts.
Volvo recommends the use of snow tires on all four wheels for winter driving - see the chapter "Wheels and tires."
To prevent the washer fluid reservoir from freezing, add washer solvents containing antifreeze (see page 145 for the
location of the washer fluid reservoir). This is important since dirt is often splashed on the windshield during winter
driving, requiring the frequent use of the washers and wipers. Volvo Washer Solvent should be diluted as follows:
Down to 14° F (-10° C): 1 part washer solvent and 4 parts water, Down to 5° F (-15° C): 1 part washer solvent and 3
parts water, Down to 0° F (-18° C): 1 part washer solvent and 2 parts water, Down to -18° F (-28° C): 1 part washer
solvent and 1 part water.
Use Volvo Teflon Lock Spray in the locks.
NOTE: Avoid using de -icing sprays as they can cause damage to the locks.
1. Synthetic oil is not used when the oil is changed at the normal maintenance intervals except at owner request and at
additional charge.
Conserving electrical current
Keep the following in mind to help minimize battery drain:
When the engine is not running, avoid turning the ignition key to position II. Many electrical systems (the audio
pg. 94 General information
system, the optional navigation system, power windows, etc) will function with the ignition key in position I. This
position reduces drain on the battery.
Please keep in mind that using systems, accessories, etc that consume a great deal of current when the engine is not
running could result in the battery being completely drained.
The optional 12 volt socket in the trunk provides electrical current even with the ignition switched off, which drains
the battery.
NOTE: If the ignition is switched on, a warning message will be displayed in the text window in the instrument panel
when the battery charge is low.
An energy conserving function designed into the vehicle's electrical system will switch off certain functions or reduce
the load on the battery by, e.g., reducing the audio system's volume.
Before a long distance trip
It is always worthwhile to have your vehicle checked by a trained and qualified Volvo service technician before
driving long distances. Your retailer will also be able to supply you with bulbs, fuses, spark plugs and wiper blades for
your use in the event that problems occur.
As a minimum, the following items should be checked before any long trip:
Check that engine runs smoothly and that fuel consumption is normal.
Check for fuel, oil, and fluid leakage
ProCarManuals.com

Have the transmission oil level checked2.
Check condition of drive belts.
Check state of the battery's charge.
Examine tires carefully (the spare tire as well), and replace those that are worn. Check tire pressures.
The brakes, front wheel alignment, and steering gear should be checked by a trained and qualified Volvo service
technician only.
Check all lights, including high beams.
Reflective warning triangles are legally required in some states/provinces.
Have a word with a trained and qualified Volvo service technician if you intend to drive in countries where it may
be difficult to obtain the correct fuel.
Consider your destination. If you will be driving through an area where snow or ice are likely to occur, consider
snow tires.
2. To prevent injury from contact with hot surfaces, do not inspect your vehicle's transmission fluid yourself. Have
your vehicle's transmission fluid level inspected by a trained and qualified Volvo service technician.
pg. 95 Fuel requirements
Octane rating
Volvo engines are designed for optimum performance on unleaded premium gasoline with an AKI octane rating of 91
or above. AKI (ANTI KNOCK INDEX) is an average of the Research Octane Number, RON, and the Motor Octane
Number, MON. ((RON + MON)/2). The minimum octane requirement is AKI 87 (RON 91).
Deposit control gasoline (detergent additives)
Volvo recommends the use of detergent gasoline to control engine deposits. Detergent gasoline is effective in keeping
injectors and intake valves clean. Consistent use of deposit control gasolines will help ensure good driveability and
fuel economy. If you are not sure whether the gasoline contains deposit control additives, check with the service
station operator.
NOTE: Volvo does not recommend the use of store -bought fuel injector cleaning additives.
Unleaded fuel
Each Volvo has a three-way catalytic converter and must use only unleaded gasoline. U.S. and Canadian regulations
require that pumps delivering unleaded gasoline be labelled "UNLEADED". Only these pumps have nozzles which fit
your vehicle's filler inlet. It is unlawful to dispense leaded fuel into a vehicle labelled "unleaded gasoline only".
Leaded gasoline damages the three-way catalytic converter and the heated oxygen sensor system. Repeated use of
leaded gasoline will lessen the effectiveness of the emission control system and could result in loss of emission
warranty coverage. State and local vehicle inspection programs will make detection of misfueling easier, possibly
resulting in emission test failure for misfueled vehicles.
NOTE: Some U.S. and Canadian gasolines contain an octane enhancing additive called methyl-cyclopentadienyl
manganese tricarbonyl (MMT). If such fuels are used, your Emission Control System performance may be affected,
and the Check Engine Light (malfunction indicator lamp) located on your instrument panel may light. If this occurs,
please return your vehicle to a trained and qualified Volvo service technician for maintenance.
Gasoline containing alcohol and ethers
Some fuel suppliers sell gasoline containing "oxygenates" which are usually alcohols or ethers. In some areas, state or
local laws require that the service pump be marked indicating use of alcohols or ethers. However, there are areas in
which the pumps are unmarked. If you are not sure whether there is alcohol or ethers in the gasoline you buy, check
with the service station operator. To meet seasonal air quality standards, some areas require the use of "oxygenated"
fuel. Volvo allows the use of the following "oxygenated" fuels; however, the octane ratings listed on this page must
still be met.
Alcohol - Ethanol: Fuels containing up to 10% ethanol by volume may be used. Ethanol may also be referred to as
Ethyl alcohol, or "Gasohol". Ethers - MTBE: Fuels containing up to 15% MTBE may be used.
ProCarManuals.com

2 0 0 6
VOLVO S40
Chapter 8 - Volvo Service
pg. 119 Wheels and tires
General information120
Tire inflation122
Tire inflation pressure tables124
Tire designations125
Glossary of tire terminology126
Vehicle loading127
Uniform Tire Quality Grading128
Temporary Spare130
Wheel nuts131
Tire rotation132
Changing a wheel133
pg. 120 General information
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
same manufacturer, on all four wheels. Otherwise there is a risk of altering the car's roadholding and handling
characteristics.
Storing wheels and tires
When storing complete wheels (tires mounted on rims), they should be suspended off the floor or placed on their sides
ProCarManuals.com