2003 VOLVO C70 sensor

LED alarm status indicator
Alarm
The radio signal emitted from the transmitter, which is used to set/unset the alarm, is a "rolling code" signal. This
means that the signal is changed randomly for each transmission and is intended to help prevent unauthorized
recording of the code.
When armed (set), the alarm continuously monitors a number of points on the car. The following conditions will set off
the alarm:
The hood is opened
The trunk is opened
A door is opened
The ignition switch is tampered with
The car is lifted or towed (if the car is equipped with the optional inclination sensor)
The battery is disconnected (if the car is equipped with the optional backup battery siren). The alarm will sound for
ten 30 second intervals, with a 5 second pause between intervals. This function cannot be interrupted.
Arming (setting) the alarm
Press the LOCK button on the remote control, lock the car using the key in the driver's door or press the central lock
button on one of the doors with the door open. One long flash of the turn signals will confirm that the alarm is set.
Disarming the alarm
Press the UNLOCK button on the remote control or unlock the doors with the key.
Turning off (stopping) the alarm
If the alarm is sounding, it can be stopped by pressing the UNLOCK button on the remote control or by unlocking the
driver's door with the key.
If the alarm is stopped with the remote control, this will be confirmed by two short flashes from the turn signals.
"Panic" function
In an emergency situation, this feature can be used to attract attention.
Activate the "panic" function by pressing the red panic button on the remote control for at least 3 seconds or by
pressing this button twice within 3 seconds. The turn signals will flash, the interior lights will go on and the alarm will
sound.
The function can be turned off by pressing any of the buttons on the remote control or will stop automatically after 25
ProCarManuals.com

seconds.
NOTE: This button will NOT unlock the car.
Audible alarm signal
An audible alarm signal is given either by a separate alarm horn or by the optional backup siren. One alarm cycle lasts
for 30 seconds.
Visual alarm signal
The visual alarm signal is given by flashing all turn signals and turning on the interior lighting for approximately 5
minutes.
pg. 46 Alarm
Automatic reset function
If only the driver's door is unlocked with the remote control, the lock will automatically re-engage (re-lock) and the
alarm will reset after 2 minutes unless the door has been opened.
Temporarily disconnecting the alarm sensor(s)
In certain situations it may be desirable to disconnect the optional alarm sensors, particularly the inclination sensor, if,
for example, you drive your car onto a ferry where the rocking of the boat could trigger the alarm.
To temporarily disconnect the sensor(s) from the alarm system:
With both doors closed, switch off the ignition and remove the key from the ignition switch
Press the locking (left) side of the central locking button on the driver's door for at least 3 seconds
The doors will first lock and then unlock after 3 seconds to confirm that the sensors have been disconnected
The car can then be locked in the usual way to set the alarm.
NOTE: The sensors will automatically be reconnected to the alarm system the next time the ignition is switched on.
LED alarm status signals
The status of the alarm system is indicated by the red LED at the top center of the dash:
LED off - the alarm is not armed (set)
LED flashes once per second - the alarm is armed (set)
LED flashes rapidly before the ignition is switched on - the alarm has been triggered
LED flashes rapidly for 15 seconds after the ignition has been switched on - a fault has been detected in the alarm
system. Contact a Volvo retailer.
ProCarManuals.com

The following speeds should not be exceeded during the breakin period:Up to 600 miles
(1000 km) 600 1,200 miles
(1000 2000 km)
1st gear 20 mph (30 km/h) 25 mph (40 km/h)
2nd gear 30 mph (50 km/h) 40 mph (70 km/h)
3rd gear 45 mph (80 km/h) 65 mph (100 km/h)
4th gear 70 mph (110 km/h) 80 mph (130 km/h)
5th gear 80 mph (130 km/h) 95 mph (150 km/h)
Posted speed limits should not be exceeded.
Deposit control (detergent) gasoline
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.
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 Malfunction Indicator Lamp located on your instrument panel may light. If this occurs, please return your
vehicle to an authorized Volvo retailer for service.
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).
pg. 61 Fuel requirements
Fuel Formulations
ProCarManuals.com

fast highway driving may necessitate replacement sooner.
Under normal driving conditions, spark plugs require no maintenance between replacement intervals. When installing
new plugs, be sure to use the right type and to tighten them correctly. When changing the plugs, clean the terminals
and rubber seals. Also check that the suppressor connectors are in good condition. Cracked or damaged connectors
should be replaced.
pg. 114 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(s)
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-ways catalytic
converter.
Crankcase ventilation
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
ProCarManuals.com

pg. 127 Engine specifications
Engine
Liquid-cooled gasoline, 5-cylinder, in-line 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, heated oxygen sensor(s) and three-way catalytic
converter.
Charge air cooler (Intercooler)
Turbocharged engines employ a turbo-compressor to force air into the engine inlet manifold and a charge air cooler to
cool the compressed inlet air. The resulting increase in air flow raises pressure in the intake manifold by approx. 8.7
psi (over atmospheric pressure) and engine power output by approx. 50 horsepower over that developed by the
normally-aspirated engine. The charge air cooler (which resembles a radiator) is located between the turbo-compressor
and inlet manifold.Designation: Volvo B 5234 T3
Output 242 hp at 5400 rpm (180 kw/90 rps)
Max. torque 243 ft. lbs. at 2400-5100 rpm (330 Nm/40-92 rps)
Number of cylinders 5
Bore 3.19" (81 mm)
Stroke 3.54" (90 mm)
Displacement 2.3 liters
Compression ratio 8.5:1
Number of valves 20
Designation: Volvo B 5244 T
Output 197 hp at 5700 rpm (147 kw/95 rps)
Max torque 210 ft. lbs. at 1800-5000 rpm (285 Nm/30-83 rps)
Number of cylinders 5
Bore 3.27" (83 mm)
Stroke 3.54" (90 mm)
Displacement 2.4 liters
Compression ratio 9.0:1
Number of valves 20
All specifications are subject to change without notice.
pg. 128 Specifications
ProCarManuals.com

2 0 0 3
VOLVO C70
INDEX
pg. 193 - 195 Index
A
ABS 17
Air conditioning35
Air filter - engine113
Air mix33
Air vents33
Airbag (SIPS)8
Airbag (SRS)4
Alarm45
Ambient temperature sensor25
Anti-lock Brake System (ABS)17,74
Antifreeze77
Ashtrays31
Audio systems
-General information186
-SC-813134
-SC-816147
-SC-900/01163
Automatic car washing107
Automatic daytime running24
Automatic transmission66,129
-Kickdown67
Automatic transmission fluid126
B
Battery77
,130
Battery drain - avoiding57
Battery maintenance122
Booster cushion12
Brake failure warning light17, 18
Brake fluid118,126
Brake fluid warning light18
Brake system74, 75
ProCarManuals.com

Brake warning light17
Bulb failure warning17,19
Bulbs130
C
Capacities129
Catalytic converter123
Central locking system44
Chains (snow)81
Changing a wheel86
Child booster cushion12
Child safety12
Cleaning the convertible top107
Climate control systems34
Clock16
Clock - resetting25
Clutch fluid118
Clutch interlock65
Convertible top - cleaning107
Convertible top - electrically operated40
Convertible top - manually raising102
Coolant - checking/changing120
Coolant level sensor19
Coolant level warning light17
Cooling system69,128
Courtesy lights - exterior20
Courtesy lights - front51
Cruise control29
D
Daytime running lights24
Demister - rear window23
Dimensions131
Distributor ignition system128
Diversity antenna189
Doors and locks43
Driving economy63
Driving mode W67, 77
E
EBD (Electronic Brake-force Distribution)75
ECC - Electronic Climate Control34, 35
Electrical system69,130
Electrically heated front seats30
Electrically operated convertible top40
Electrically operated front seats47
Electrically operated windows36
ProCarManuals.com