2000 VOLVO S40 air condition

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.
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2 0 0 0
VOLVO
S & V 40
INDEX
pg. 158 - 160 Index
A
ABS 21
,69
Adjustable steering wheel32
Air conditioning35
Air mix33
Air vents33
Airbag (SIPS)8
Airbag (SRS)4
Alarm41
Anti-lock Brake System (ABS)21,69
Antifreeze71,115
Ashtrays31
Audio systems
SC-813128
SC-816141
Automatic car washing100
Automatic transmission63,64,65,123
Driving mode selector63
Automatic transmission fluid118,120
Auxiliary socket31
B
Battery71,
124
Battery maintenance117
Booster cushion10
Brake failure warning light20
Brake fluid114,120
Brake fluid warning light20
Brake system69,70
Bulb failure warning20
Bulbs124
C
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Fuel system110,122
Fuel tank cover - opening59
Fuses91,92,93
G
Gas tank cover - opening59
Generator124
H
Hand brake30
Handling56
Hazard warning flashers24
Heated front seats30
Heating35
Heating and air conditioning33
Hood50
I
Ignition switch24
Immobilizer (start inhibitor)38
Instruments16,17
Integrated booster cushion10
J
Jack82
Jack (sedan)52
Jump starting68
K
Keyless entry system40
Keylock61
Keys38
L
Label information104
Locking button - central39
Locks39
Long distance trips72
Lubrication111
Lumbar support45,46
M
Maintenance schedule106
Maintenance service105
Malfunction indicator lamp20
Manual transmission fluid120
Mirrors - rear/side view47
O
Occupant safety14
Octane rating59
Odometer18
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