sensor VOLVO S40 2002 Owners Manual

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 system for all models as far back as the M/Y 1975 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 Infromation booklet.
· Drive at a constant speed
· See an authorized Volvo retailer 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.
· When cleaning your car, use Volvo's own car care products, all of which have systematically been adapted to the
environment
For additional information regarding the environmental activities in
which Volvo Cars of North America, Inc. and Volvo Car Corporation are involved, visit our Internet Home Page at:
http://www.volvocars.com

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The rear head restraints can be adjusted according to the passenger's height. The restraint should be carefully adjusted
to support the occupant's head.
The head restraint can be raised by pulling straight up or lowered by pressing the catch (1) at the base of the left head
restraint support and pushing down.
Removing/replacing the head restraints
When folding the rear seats flat for carriage of cargo ( see page 55), head restraints should be fully removed by pulling
all the way up, pressing the catch at base of the left support and pulling the head restraint all the way out. Be sure to
reinstall and adjust head restraints to their proper position before allowing passengers to occupy the seats.
pg. 4 Volvo SRS
Passenger side SRS hatch
As an enhancement to the three-point seat belt system, your Volvo is equipped with a Supplemental Restraint System
(SRS). The Volvo SRS consists of an airbag (2) on both the driver's and passenger's sides and seat belt tensioners in
both front door pillars (4). The system is designed to supplement the protection provided by the three-point seat belt
system.
The SRS system is indicated by the "SRS" embossed on the steering wheel pad and above the glove compartment, and
by decals on both sun visors and on the far right side of the dash.
The airbags are folded and located in the steering wheel hub and above the glove compartment. They are designed to
deploy during certain frontal or front -angular collisions, impacts, or decelerations, depending on the crash severity,
angle, speed and object impacted. The airbags may also deploy in certain non-frontal collisions where rapid
deceleration occurs.
The airbag system includes gas generators (1) surrounded by the airbags (2) and front seat belt tensioners for both of
the front seats (4). To deploy the system, the sensor (3) activates the gas generators causing the airbags to be inflated
with nitrogen gas. As the movement of the seats' occupants compresses the airbags, some of the gas is expelled at a
controlled rate to provide better cushioning. Both seat belt tensioners also deploy, minimizing any seat belt slack.
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The entire process, including inflation and deflation of the airbags, takes approximately two-tenths of a second.
WARNING!
· As its name implies, SRS is designed to be a SUPPLEMENT to - not a replacement for - the three-point belt
system. For maximum protection, wear seat belts at all times. Be aware that no system can prevent all possible
injuries that may occur in an accident.
· When installing any optional equipment, make sure that the SRS system is not damaged. Do not attempt to service
any component of the SRS yourself. Attempting to do so may result in serious personal injury. If a problem arises,
take your car to the nearest authorized Volvo retailer for inspection as soon as possible.
pg. 5 Volvo SRS
A self -diagnostic system incorporated into the sensor monitors the SRS, SIPS and IC-system. If a fault is detected, the
"SRS" warning light will illuminate. The light is included in the warning/indicator light cluster in the instrument panel.
Normally, the SRS warning lamp should light up when the ignition is switched on and should go out after 5 seconds or
when the engine is started. Check that this light is functioning properly every time the car is started.
The following items are monitored by the self -diagnostic system:
· Sensor unit
· SRS wiring
· InflatorsWARNING!
Never drive an SRS equipped car with your hands on the steering wheel pad / airbag housing.
No objects, accessory equipment or stickers may be placed on, attached to or installed near the SRS cover in the
center of the steering wheel, the SRS cover above the glove compartment or the area affected by airbag deployment.
If the SRS warning light stays on after the engine has started or if it comes on while you are driving, drive the car to
the nearest authorized Volvo retailer for inspection as soon as possible.
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SRS decal on door pillar driver's side
There is no maintenance to perform on the SRS yourself. The month and year shown on the decal on the door pillar
indicate when you should contact your Volvo retailer for specific servicing or replacement of airbags and seatbelt
tensioners. This service must be performed by an authorized Volvo retailer.
Should you have any questions about the SRS system, please contact
your authorized Volvo retailer or Volvo Customer Support:
In the USA: In Canada:
Volvo Cars of North America Volvo Cars of Canada Ltd.
Customer Relations 175 Gordon Baker Road
P.O. Box 914 Willowdale, Ontario M2H 2N7
Rockleigh, New Jersey 07647-0914 1-800-663-8255
800-458-1552
pg. 6 Volvo SRS
SRS texts on inside of both
sun visorsSRS texts on outside of both
sun visorsSRS texts on the
passenger's dashSRS text at far right of
instrument panel
WARNING!
Do not use child safety seats or child booster cushions/backrests in the front passenger's seat. We also recommend
that children who have outgrown these devices sit in the rear seat with the seat belt properly fastened.
NOTE: Deployment of SRS components occurs only one time during an accident. In a collision where deployment
occurs, the air bags and seat belt tensioners activate. Some noise occurs and a small amount of powder is released. The
release of the powder may appear as smoke-like matter. This is a normal characteristic and does not indicate fire.
NOTE: NOTE: Volvo's dual-threshold air bags use special sensors that are integrated with the front seat buckles. The
point at which the air bag deploys is determined by whether or not the seat belt is being used, as well as, the severity of
the collision. Collisions can occur where only one of the airbags deploys.
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WARNING!
· Children must never be allowed in the front passenger seat. Volvo recommends that ALL occupants (adults and
children) shorter than 4 feet 7 inches (140 cm) be seated in the back seat of any vehicle with a front passenger side
airbag.
· Occupants in the front passenger's seat must never sit on the edge of the seat, sit leaning toward the instrument
panel or otherwise sit out of position. The occupant's back must be as upright as comfort allows and be against the
seat back with the seat belt properly fastened.
· Feet must be on the floor, e.g. not on the dash, seat or out of the window.
· No objects or accessory equipment, e.g. dash covers, may be placed on, attached to or installed near the SRS hatch
(the area above the glove compartment) or the area affected by airbag deployment (see illustration).
· There should be no loose articles, e.g. coffee cups, on the floor, seat or dash area.
· Never try to open the SRS cover on the steering wheel or the passenger side SRS seam. This should only be done
by an authorized Volvo service technician.
· Failure to follow these instructions can result in injury to the vehicle occupants in an accident.
pg. 7 Volvo SRS
NOTE: The information on this page does not pertain to the Side Impact Protection System airbags.
When are the airbags deployed?
The SRS system is designed to deploy during certain frontal or frontangular collisions, impacts, or decelerations,
depending on the crash severity, angle, speed and object impacted. The SRS sensor is designed to react to both the
impact of the collision and the inertial forces generated by it and to determine if the intensity of the collision is
sufficient for the airbags to be deployed.
WARNING!
The SRS is designed to help prevent serious injury. Deployment occurs very quickly and with considerable force.
During normal deployment and depending on variables such as seating position, one may experience abrasions,
bruises, swellings, or other injuries as a result of airbag(s) deployment.
If the airbags have been deployed, we recommend the following:
· Have the car towed to an authorized Volvo retailer. Never drive with the airbags deployed.
· Have an authorized Volvo retailer replace the SRS system components.
· Use only new, Genuine Volvo Parts when replacing SRS components (airbags, seat belts, tensioners, etc.).
When are the airbags NOT deployed?
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pg. 19 Instruments, switches and controls
Chapter 2 - Instruments, switches and controls
The pages in this section provide detailed descriptions of the vehicle's instruments and controls. Note that vehicles may
be equipped differently, depending on special legal requirements.Page
1 Adjustable door mirrors 50
2Air vents 35
3Headlight switch 24
4Front foglight switch 24
5Instrument lighting 24
6Rear foglight switch 24
7Turn signals, high/low beams, Home Safe Lighting, cruise control 31
8Instruments, indicator and warning lights 20-21
9Horn
10 Windshield wash/wipe, headlight wash/wipe 25
11Blower control 36
12Air distribution control 36
13Hazard warning flashers 26
14Passenger compartment temperature sensor 36
15Temperature control 36
16Glove compartment 45
17Passenger airbag 4
18Sunlight sensor for electronic climate control and LED for immobilizer and alarm 37,44
19Fuse box 96/97
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station operator.
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 labeled "UNLEADED". Only these pumps have nozzles which fit
your car's filler inlet. It is unlawful to dispense leaded fuel into a vehicle labeled "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 methly-cyclopentadienyl
manganese tricarbonyl (MMT). If such fuels are used, your Emission Control System performance may be affected,
and the Check Engine Lamp located on your instrument panel may light. If this occurs, please return your vehicle to
an authorized Volvo retailer for service.
Carbon Monoxide - Important Warning
Carbon monoxide is a poisonous, colorless, and odorless gas. It is present in all exhaust gases. If you ever smell
exhaust fumes inside the vehicle, make sure the passenger compartment is ventilated, and immediately return the
vehicle to your retailer for correction.
Fuel Formulations
Do not use gasoline that contains lead as a knock inhibitor, and do not use lead additives. Besides damaging the
exhaust emission control systems on your car, lead has been strongly linked to certain forms of cancer.
Many fuels contain benzene as a solvent. Unburned benzene has been strongly linked to certain forms of cancer. If you
live in an area where you must fill your own gas tank, take precautions. These may include:
standing upwind away from the filler nozzle while refueling
refueling only at gas stations with vapor recovery systems that fully seal the mouth of the filler neck during refueling
wear neoprene gloves while handling a fuel filler nozzle.
Use of Additives
With the exception of gas line antifreeze during winter months, do not add solvents, thickeners, or other store -bought
additives to your car's fuel, cooling, or lubricating systems. Overuse may damage your engine, and some of these
additives contain organically volatile chemicals. Do not needlessly expose yourself to these chemicals.
ENGINE OIL
Although some oil consumption occurs during normal engine operation, more oil is consumed when the engine is new
as the internal parts generate higher friction while wearing in to each other. From the time the engine is new until
the first service is performed, the oil consumption could be higher than normal. For this reason, it is especially
important to check the oil every time you refuel your car during this period. See page 114
.
pg. 63 Fuel requirements, Refueling
Octane rating
Volvo engines are designed for optimum performance on unleaded premium gasoline with an octane rating. AKI 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).
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16 Coolant expansion tank
17 Windshield wiper motor
18 Chassis number
A ABS
B Air conditioning compressor
C Air conditioning condenser
D Air conditioning accumulator
WARNING!
The coolant fan may start or continue to operate (for up to 6 minutes) after the engine has been switched off.
pg. 112 Fuel/emissions systems
Fuel system
The fuel system is all electronic and is microprocessor controlled. It can continually compensate for variation in engine
load, speed and temperature to give the best economy and power. A mass air flow sensor measures the inducted air. In
this way the system can make instantaneous adjustments for changes in air temperature or density, thus always
assuring the best economy with the lowest possible exhaust emissions.
Heated oxygen sensor
This is an emission control system designed to reduce emissions and improve 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 ratio to provide optimum conditions for combustion and efficient reduction of the
three major pollutants (hydrocarbons, carbon monoxide and oxides of nitrogen (NOx) by a three-way catalytic
converter.
Crankcase ventilation
The engine is provided with positive crankcase ventilation which prevents crankcase gases from being released into the
atmosphere. Instead, the crankcase gases are admitted to the intake manifold and cylinders.
Evaporative control system
The car is equipped with an evaporative control system which prevents gasoline vapor from being released into the
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atmosphere.
The system consists of a fuel tank with filler pipe and cap, a rollover valve, a Fill Limit Vent Valve (FLVV), vapor
vent lines, a charcoal canister, a purge line, a purge control valve and engine connections*.
In addition, there is a pressure sensor connected to the fuel tank and a filter -protected Canister Close Valve (CCV) on
the atmospheric side of the canister, for system diagnosis.
The gasoline vapor is channeled through the rollover valve and the FLVV via the vapor vent lines into the charcoal
canister, where it is
stored. When the engine is started, the gasoline vapor is drawn from the charcoal canister to the engine's air intake
system and into the combustion process.
NOTE:
· If the fuel filler cap is not closed tightly or if the engine is running when the car is refueled, the Malfunction Indicator
light may indicate a fault.
· During a transitional period, a small number of service stations may still have fuel nozzles that are not compatible
with the fuel filler neck on cars equipped with the evaporative control system (ORVR) mandated by the U.S.
Environmental Protection Agency and the California Air Resources Board. If you experience difficulties in refueling
your vehicle, please ask the gas station attendant for assistance.
CAUTION:
Fuel must not be siphoned from the fuel tank. This will damage the Evaporative control system.

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Engine oilQuality:
Meeting minimum ILSAC specification GF-2, including
ACEA A1, API SJ, SJ/CF and SJ/Energy Conserving.
Capacity (incl. filter) : 5.7
US qts (5.4 liters).
Capacity (excl. filter) : 5.3
US qts (5.0 liters)
Automatic
transmission
fluid Quality:
JWS-3309 P/N 1161540 Capacity:
8 US qts. (7.6
liters)
Power steering
fluid Quality:
ATF oil Capacity:
1.05 US qts. (1
liters)
Brake fluid Quality: DOT 4+ boiling point >536°F (280°C), P/N 9437433 Capacity:
0.42 US qts.
(0.4 liters)
All specifications are subject to change without notice.
pg. 123 Engine
Engine
Liquid-cooled, gasoline, inline, 4-cylinder, turbocharged engine. Aluminum alloy cylinder block with cast-iron
cylinder liners cast directly into the block. Aluminum alloy cylinder head with double overhead camshafts and separate
intake and outlet channels.
Engine lubrication is provided by an eccentric pump driven from the crankshaft. Full-flow type oil filter. Exhaust
emission control is accomplished by multiport fuel injection, a heated oxygen sensor and a three-way catalytic
converter. Designation: Volvo B 4204 T3
Output 162 hp at 5100 rpm (121 kw at 5100 rpm)
Max torque 177 ft. lbs. at 1800-4800 rpm (240 Nm at 1800-4800 rpm)
Number of cylinders 4
Bore 3.27" (83 mm)
Stroke 3.54" (90 mm)
Displacement 1.95 liters
Compression ratio 9.0:1
Number of valves 16
Valve clearance mechanical
All specifications are subject to change without notice.
pg. 124 Specifications
Cooling system
Type: Positive pressure, closed system
Thermostat begins to open at 186° F (90° C)
Coolant: Volvo original coolant/antifreeze
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