sensor VOLVO S40 2000 Owners Manual

When your car is parked, the gear selector is locked in the (P)ark position. To release the selector from this position,
turn the ignition key to position II (or start the engine), depress the brake pedal, press the button on the front of the
gear slector knob and move the selector from (P)ark.
If it is necessary to manually override the shiftlock system:
· Turn the starting (ignition) key to position I
· Press firmly on the "SHIFTLOCK OVERRIDE" button located at the base of the gear selector
· While holding the override button down, press the button on the front of the gear selector
· Move the selector from the (P)ark position.
Keylock
When you switch off the ignition, the gear selector must be in the (P)ark position before the key can be removed.
Anti-lock Brake System (ABS)
The ABS system in your car performs a self -diagnostic test when the vehicle first reaches the speed of approximately
12 mph (20 km/h). The brake pedal will pulsate several times and a sound may be audible from the ABS control
module. This is normal.
Fuel filler door
When you lock the doors, the fuel filler door also locks, with a delay of 10 minutes. When all doors are unlocked, the
fuel filler door is also unlocked. Your key, keyless remote, and the door lock button on the dashboard will all unlock
the fuel filler door. To open the unlocked fuel filler door, press at the forward edge of the door. See pages 39 for
information about locking and unlocking features.
© 1999 Volvo Cars of North America Inc.
Volvo and the environment
Volvo is committed to the well being of our 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.
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
ProCarManuals.com

Rear head restraints
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.
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.
ProCarManuals.com

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. 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
· Cable harness
· Gas generator ignitersWARNING!
Never drive an SRS equipped car with your hands on the steering wheel pad / airbag housing.
ProCarManuals.com

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.
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. See page 11 for guidelines.
· 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.
ProCarManuals.com

22Hood latch 50
23Steering wheel height adjustment 32
24ECC temperature sensor 34
25Recirculation 35
26Door lock switch 39
27-
28 Trip Computer operation 25
29Seat heater 30
30DSA switch (Dynamic Stability Assistance) 28
31Seat heater 30
32Rear window/door mirror heater switch 34
34ECC: air-conditioning switch 34
35Automatic transmission switch 63
36Door mirror switch 47
37Electric window switch front 36
38Cut -out switch windows rear 36
39Electric window switch rear 36
Controls in center console
Some of the items listed on this page are available on certain models only.
pg. 18 Instruments
1 Clock reset knob
Turn the knob:
Clockwise: advance
Counterclockwise: set clock back The longer the knob is turned, the faster the setting will change.
2 Clock
3 Tachometer
Reads thousands of engine rpm. The needle should never be in the solid red range.
ProCarManuals.com

Volvo recommends the use of gasoline containing deposit control additives. These additives have shown to be efficient
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.
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 car'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 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.
pg. 59 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).
The minimum octane requirement is AKI 87 (RON 91).
Gasoline containing alcohol and ethers
"Oxygenated fuels"
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

WARNING!
The coolant fan may start or continue to operate (for up to 6 minutes) after the engine has been switched off.
pg. 110 Fuel/emissions systems
Fuel system
The fuel system is allelectronic and is microprocessorcontrolled. 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 airfuel 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 threeway catalytic converter.
Secondary Air Injection (certain models)
This system adds air to the hot exhaust gases as they are expelled from the engine. This causes a secondary
combustion of residual hydrocarbons and carbon monoxide, resulting in lower emissions levels in the exhaust gases.
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
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
Lamp may indicate a fault.
ProCarManuals.com

Engine oilQuality:
Meeting API specification SG or
SH Capacity (incl. filter)
: 5.7 US qts (5.4
liters)
Automatic transmission
fluid Quality:
ATF Dexron III and Mercon 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+ Capacity: 0.42 US qts. (0.4 liters)
All specifications are subject to change without notice.
pg. 121 Engine
Engine
Liquidcooled gasoline, 4-cylinder, inline engine. Aluminum alloy cylinder block with castiron 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. Fullflow 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 T2
Output 160 hp at 5100 rpm (118 kw at 5100 rpm)
Max torque 170 ft. lbs. at 1800-4800 rpm (230 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
All specifications are subject to change without notice.
pg. 122 Specifications
Cooling system
Type: Positive pressure, closed system
Thermostat begins to open at 186° F (90° C)
ProCarManuals.com