fuel pressure VOLVO XC70 2003 Owners Manual

2003 VOLVO XC70
Volvo's environmental activities are based on a holistic view, which mea\
ns 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 chemica\
ls including freons, lead
chromates, naphtanates, asbestos, mercury and cadmium; and reduced the a\
mount of chemicals used in
our plants 50% since 1991.
In use, Volvo was the first in the world to introduce into production a \
three-way catalytic converter with
a Lambda sond, now called 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 sy\
stem for all models as far back as
the M/Y 1975 240. Advanced electronic engine controls, refined purificat\
ion systems and cleaner fuels
are bringing us closer to our goal.
After Volvo cars and parts have fulfilled their use, recycling is the ne\
xt 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 c\
ontrolled recycling, many Volvo
variants have printed dismantling manuals, indicating the weight and mat\
erial 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 fo\
r recycling.
In addition to continuous environmental refinement of conventional gasol\
ine-powered internal
combustion engines, Volvo is actively looking at advanced technology alt\
ernative-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:
l Maintain proper air pressure in your tires. Tests have shown decreased f\
uel economy with improperly
inflated tires
l Follow the recommended maintenance schedule
l Drive at a constant speed
l See an authorized Volvo retailer as soon as possible for inspection if t\
he check engine (malfunction
indicator) lamp illuminates, or stays on after the vehicle has started \
l Properly dispose of any vehicle related waste such as used motor oil, us\
ed batteries, brake pads, etc.
l When cleaning your car, use Volvo's own car care products, all of which \
have systematically been
adapted to the environment
PremAir®
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2003 VOLVO XC70
With the exception of gas line antifreeze during winter months, do not a\
dd solvents, thickeners, or other
store-bought additives to your car's fuel, cooling, or lubricating syste\
ms. Overuse may damage your
engine, and some of these additives contain organically volatile chemica\
ls. Do not needlessly expose
yourself to these chemicals.

pg. 86 Refueling

Refueling
The fuel tank holds approximately 18.5 US gals (70 liters) or 19 US ga\
ls (72 liters) on models equipped
with All Wheel Drive, with sufficient volume left over to accommodate po\
ssible expansion of the fuel in
hot weather. Be aware that the "usable" tank capacity will be somewhat l\
ess than the specified
maximum. When the fuel level is low, such factors as ambient temperature\
, the fuel's "Reid vapor
pressure" characteristics, and terrain can affect the fuel pump's abilit\
y to supply the engine with an
adequate supply of fuel. Therefore, it is advisable to refuel as soon as\
possible when the needle nears the
red zone, or when the fuel warning light comes on.
Fuel filler door
Press the button on the light switch panel (see illustration on page 34) when the car is at a standstill to
unlock the fuel filler door. Please note that the fuel filler door will \
remain unlocked until the car begins
to move forward. An audible click will be heard when the fuel filler doo\
r relocks.
If you intend to leave your car while it is being refueled, this feature\
s enables you to lock the door/
tailgate while leaving the fuel filler door unlocked.
You can also keep the car locked if you remain inside it during refuelin\
g. The central locking button
does not lock the fuel filler door.
Be sure the fuel filler door is not obstructed and is completely closed \
after refueling. Open the fuel
filler cap slowly during hot weather conditions.
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2003 VOLVO XC70
pattern, load-, speed-, traction-, temperature-, and treadwear rating. N\
ever drive on mixed tires, except
for brief periods when the temporary spare tire is in use.
Always use properly inflated tires of correct dimensions. Tire size and \
inflation pressures are shown on
the tire pressure label located inside the fuel filler door.
Tire Rotation
Volvo recommends rotating the tires every 7,500 miles (12,000 km). Tir\
es should be rotated front-to-
back/back-to-front only. Tires must maintain the same direction of rotat\
ion throughout their lifetime, and
should never be rotated from one side of the vehicle to the other.
Temporary Spare
The temporary spare tire is for temporary, low-speed, short-distance use\
only. Replace it with a full-
sized tire as soon as possible, in accordance with "Tire Rotation" above\
. Do not drive on the temporary
spare at speeds above 50 m.p.h. (80km/h) or for distances greater than\
50 miles (80 km).
Never install snow chains on a temporary spare.

pg. 95 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. Obs\
erve the following rules:
l 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 eng\
ine uses more fuel and is subject
to increased wear.
l Whenever possible, avoid using the car for driving short distances. This\
does not allow the engine to
reach normal operating temperature.
l Drive carefully and avoid rapid acceleration and hard braking.
l Do not exceed posted speed limits.
l Avoid carrying unnecessary items (extra load) in the car.
l Maintain correct tire pressure. Check tire pressure regularly (when tir\
es are cold).
l Remove snow tires when threat of snow or ice has ended.
l Note that roof racks, ski racks, etc., increase air resistance and also \
fuel consumption.
l Avoid using automatic transmission kickdown feature unless necessary.
l Avoid using the air conditioning when it is not required. When engaged, \
the conditioner's compressor
places an additional load on the engine. However, at higher driving spee\
ds, fuel consumption will be
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2003 VOLVO XC70
lower with the air conditioning on and the windows closed than with the \
air conditioning off and the
windows open.
l Using the onboard trip computer's fuel consumption modes can help you le\
arn how to drive more
economically.
Other factors that decrease gas mileage are:
l Dirty air cleaner
l Dirty engine oil and clogged oil filter
l Dragging brakes
l Incorrect front end alignment Some of the above mentioned items and othe\
rs are checked at the
standard Maintenance Service intervals.
NOTE: Vehicles equipped with automatic transmissions should use (D)rive as o\
ften as possible and
avoid using "kick-down" to help improve fuel economy. Vehicles equipped \
with manual transmissions
should use fifth gear at highway speeds. At other times, choose the high\
est gear that still allows smooth
acceleration.
Weight distribution affects handling
At the specified curb weight your car has a tendency to understeer, whic\
h 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 p\
roperties can alter with the
vehicle load. The heavier the load on the rear of the vehicle (e.g., he\
avily loaded (max. 220 lbs, 100 kg)
cargo area or when towing a trailer, the less the tendency to understeer\
.
Handling, roadholding
Vehicle load, tire design and inflation pressure all affect vehicle hand\
ling. Therefore, check that the tires
are inflated to the recommended pressure according to the vehicle load. \
See "Tire pressure" section.
Loads should be distributed so that capacity weight or maximum permissib\
le axle loads are not
exceeded.

pg. 96 Points to remember
Cooling system
The risk for engine overheating is greatest, especially in hot weather, \
when:
l Towing a trailer up steep inclines for prolonged periods at wide open th\
rottle and low engine rpm.
l Stopping the engine suddenly after high speed driving (so-called "after\
-boiling" can occur).
l To avoid overheating, the following rules should be followed: Do not dri\
ve for prolonged periods at
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2003 VOLVO XC70

pg. 105 Long distance trips
Before a long distance trip
It is always worthwhile to have your car checked at a Volvo retailer bef\
ore 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\
:
l Check that engine runs smoothly and that fuel consumption is normal.
l Check for fuel, oil, and fluid leakage.
l Check condition of accessory drive belts.
l Check transmission oil level*.
l Check state of the battery's charge.
l Examine tires carefully (the spare tire as well), and replace those th\
at are worn. Check tire pressures.
l The brakes, front wheel alignment, and steering gear should be checked b\
y your Volvo retailer only.
l Check all lights, including high beams.
l Reflective warning triangles are legal requirement in some countries.
l Have a word with your Volvo retailer if you intend to drive in countries\
where it may be difficult to
obtain the correct fuel.
l Consider your destination. If you will be driving through an area where \
snow or ice are likely to
occur, consider snow tires.
* To prevent injury from contact with hot surfaces, do not inspect your \
car's transmission fluid yourself.
Have your car's transmission fluid level inspected by a qualified Volvo \
service technician.

pg. 106 Three-way catalytic converters


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VOLVO XC70
Chapter 7 - Wheels and tires


pg.107 Wheels and tires

General information, Wear indicator, Tire economy, Flat
spots 108
Snow chains, Snow tires/studded tires 109
Inflation pressure, Vehicle loading, Spare tire 110
Uniform tire quality grading 111
Changing wheels 112

pg. 108 Wheels and tires
General information
Your vehicle is equipped with tires according to the tire information la\
bel on the inside of the fuel
filler door.
The following is an example of a tire designation code: 225/55 R16
225 = tire width in mm.
55 = tire profile. This is the relationship (in percent) between the sect\
ion height and width of the tire.
R = radial tires.
16 = diameter in inches.
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 som\
ewhat 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
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2003 VOLVO XC70
four wheels. When replacing tires, be sure that the new tires are the same dimensio\
ns, type (radial) and
preferably from the same manufacturer, on all four wheels. Do not use bi\
as ply tires. Otherwise there is a
risk of altering the car's roadholding and handling characteristics.
NOTE: When storing wheel/tire assemblies (e.g. snow tires and wheels), eith\
er 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.
Wear indicator
The tires have wear indicator strips running across or parallel to the t\
read. When approx. 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 have very poor grip in rain \
or snow.
To improve tire economy:
l Maintain correct tire pressure. See the tire pressure label on the insid\
e of the fuel filler door.
l Drive smoothly: avoid fast starts, hard braking and tire screeching.
l Tire wear increases with speed.
l Correct front wheel alignment is very important.
l Unbalanced wheels impair tire economy and driving comfort.
l Volvo does not recommend rotating the tires. However, if tires are rotat\
ed, they must be kept on the
same side of the car so that they revolve in the same direction as befor\
e rotation.
l Hitting curbs or potholes can damage the tires and/or wheels permanently\
.
Flat spots
All tires become warm during use. After cooling, when the vehicle is par\
ked, the tires have a tendency to
distort slightly, forming flat spots. These flat spots can cause vibrati\
ons similar to the vibrations caused
by unbalanced wheels. They do, however, disappear when the tire warms up\
. The degree to which flat
spots form depends on the type of cord used in the tire. Remember that, \
in cold weather, it takes longer
for the tire to warm up and consequently longer for the flat spot to dis\
appear.
CAUTION: The car must not be driven with wheels of different dimensions/specific\
ations or with a
spare tire other than the one that came with the car. The use of differe\
nt size wheels can seriously
damage your car's transmission or driveline.

pg. 109 Wheels and tires
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The tires on your Volvo will perform to specifications at all normal loa\
ds when inflated as
recommended on the tire information label located on the inside of the f\
uel filler door*. This label also
lists vehicle load limits. Do not load your car beyond the indicated lim\
its. WARNING!
Improperly inflated tires will reduce tire life, adversely affect vehicl\
e handling and can possibly lead
to failure resulting in loss of vehicle control without prior warning.
Temporary Spare
The spare tire in your car is called a "Temporary Spare". It has the fol\
lowing designation: T125/80 R17
(T135/90 R17 on the XC70).
At the recommended tire pressure shown on the inside of the fuel filler \
door, the tire may be used as a
temporary replacement for a front or rear tire.
In the event of damage to this tire, a new one can be purchased from you\
r Volvo retailer. WARNING!
Current legislation prohibits the use of the "Temporary Spare" tire othe\
r than as a temporary
replacement for a punctured tire. It must be replaced as soon as possibl\
e 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 a temporary spar\
e tire.
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 d\
amage your car's transmission.
NOTE: Certain models may be equipped with a full-size spare tire. When used, i\
t should be inflated to
the same pressure as the tire it is replacing.
*Please note that the tire information label indicates pressure for both\
comfort and fuel economy.

pg. 111 Wheels and tires
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2003 VOLVO XC70

pg. 130 Fuel/emissions systems
Fuel system
The fuel system continually compensates for variation in engine load, sp\
eed and temperature. A mass air
flow sensor continuously measures the inducted air and makes rapid adjus\
tments for changes in air
temperature and density, to balance fuel economy, emissions, and engine \
power requirements.
Heated oxygen sensor
This is an emission control system designed to reduce emissions and impr\
ove fuel economy. The heated
oxygen sensor monitors the composition of the exhaust gases leaving the \
engine. The exhaust gas
analysis is fed into an electronic module. This adjusts the air/fuel rat\
io to improve combustion and
reduce the three major pollutants (hydrocarbons, carbon monoxide, and o\
xides of nitrogen (NOx)) via a
three-way catalytic converter.
Crankcase ventilation
The engine is provided with positive crankcase ventilation which prevent\
s crankcase gases from being
released into the atmosphere. Instead, the crankcase gases are routed to\
the intake manifold and
cylinders.
PremAir®
On the surface of the radiator in the engine compartment, there is a spe\
cial coating called PremAir®.
PremAir® works as a catalytic converter, converting most of the ozone\
passing through the radiator into
oxygen, thereby reducing harmful ground-level ozone.
Evaporative control system
The car is equipped with an evaporative control system, which prevents g\
asoline vapor from being
released into the atmosphere.
The system consists of a fuel tank with filler pipe and cap, two rollove\
r valves, a Fill Limit Vent Valve
(FLVV), vapor vent lines, a charcoal canister, a purge line, and a pur\
ge control valve and engine
connections. In addition, there is a pressure sensor connected to the fu\
el tank and a filter-protected
Canister Close Valve (CCV) on the atmospheric side of the canister, fo\
r system diagnosis.
The gasoline vapor is channeled through the rollover valves and the FLVV\
via the vapor vent lines into
the charcoal canister, where it is stored. When the engine is started, t\
he gasoline vapor is drawn from the
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VOLVO XC70
Chapter 9 - Specifications


pg. 141 Specifications

Label information 142
Dimensions and weights 143
Engine specifications 144
Transmission specifications 145
Oil/fluid specifications and volumes 146
Fuel system, Distributor ignition system,
Suspension 147
Electrical system 148
Volvo On Call 149

pg. 142 Label information
1 Vehicle Emission Control Information
Your Volvo is designed to meet all applicable emission standards, as evi\
denced by the certification label
on the underside of the hood. For further information regarding these re\
gulations, please consult your
Volvo retailer.
2 Vacuum hose routing
(underside of hood)
3 Loads and Tire Pressures
(on inside of fuel filler door)
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