2008 SAAB 9-3 fuel consumption

90 Instruments and controlsPress the CLR button to acknowledge a SID
message. If you acknowledge a message
but do nothing about it, the message will be
displayed again the next time you start the
car.
When the engine is switched off the warn-
ing/indicator lights still active are displayed,
this is to remind the driver. At this point the
warning/indicator lights previously acknowl-
edged with the CLR button are also dis-
played.
You can adjust the settings of several of the
car’s systems, such as the alarm3, rain
sensor3 and climate control system. These
are known as Settings se page 94.Odometer and trip meterThe odometer records the distance trav-
elled in miles on U.S. vehicles and on Cana-
dian vehicles the distance indicated is in
kilometres, and the trip meter in miles and
tenths (kilometres and tenths of kilometres
on Canadian vehicles).
Reset buttonThe reset button is positioned immediately
to the left of the speedometer.
Press once to resets the trip meter, the igni-
tion shall be in position ON.
Trip computer function of the SID
WARNING
It is strongly recommended that the SID
settings be changed only when the car is
stationary. The driver’s attention can oth-
erwise easily be distracted from the road.
SID contains the following functions:
TempOutdoor temperature
D.T.E.Estimated range (distance to
empty fuel tank).
When the possible range is
less than 18 miles (30 km)
then the text Refill fuel now
is displayed.
FuelØAverage fuel consumption
since function last reset
DistDistance to destinations.
Function can also be used as
a trip meter
SpeedØAverage speed since function
last reset
Speed WSpeed warning (chime)
SettingsSettings of features such as
alarm clock, language and
rain sensor3
SID, control unit and display
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92 Instruments and controlsResetting a single function
1 Select the function you wish to reset
using the steering wheel controls, or
.
FuelØ
SpeedØ
Tr i p (Dist used as trip meter)
2 Press and hold the CLR button for
approx. 1 second.
The selected function will now be reset.
Resetting the trip computer
Press and hold the CLR button (approx.
3 seconds) until audible confirmation is
given.
The following functions will be rest:
FuelØ
SpeedØ
D.T.E. (the value is reset to the distance
possible on the remaining fuel if fuel
consumption is 10l/100 km, lower
consumption means a longer possible
distance)
Tr i p (Dist used as trip meter)Speed warning
This value is preset to 55 mph (90 km/h).
The value can be set to between 0 and
150 mph (0 and 250 km/h).
1Select Speed W using the steering
wheel controls, or .
2 Press and hold the SET button until
given audible confirmation.
3 Adjust the speed using the steering
wheel controls.
4 Confirm the setting by pressing the SET
button.
Go back/modify using the CLR-button.
The word ON on the right-hand side of the
display indicates when the speed warning
function is active.
An audible alarm will sound if the set speed
is exceeded.
Disengage the function with the CLR button.
Re-engage the function using the SET but-
ton.Calculating the arrival time
(When will I arrive if I know how far I have to
drive?)
This function should be used before starting
out a journey.
To calculate the arrival time, the distance
must first be given.
1Select Dist using the steering wheel
controls, or .
2 Press and hold the SET button until
given audible confirmation.
3 Set the distance to the destination using
the steering wheel controls.
4 Confirm the setting by pressing the SET
button.
The calculated arrival time will now appear
on the right-hand side of the display.
If you take a break, this time will be added to
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167 Starting and driving
Sport mode3
33 3
Sport mode is selected using the
button, while the word SPORT illuminates
on the SID . Changing up occurs later
and changing down occurs earlier at the
same accelerator pedal position.
Sport mode will be deselected if:
The Sport button is depressed again
the engine is switched off.
Lock-upThe transmission’s torque converter has a
lock-up function. This can lock the torque
converter, thus reducing the engine speed
and fuel consumption.Kick-downWhen the accelerator is pressed down fully,
a down change is made to optimize acceler-
ation, e.g. for overtaking.
Following this, the next higher gear will be
selected at the optimum engine speed,
unless you ease off the accelerator before
reaching this.Driving in hilly country with a
heavy loadThe transmission fluid can overheat when
the gearbox is strained, for example, when
driving with a trailer on hilly roads. To avoid
the transmission fluid overheating, always
drive with the selector lever in the D posi-
tion. The adaptive gear change patterns are
then active.
High air temperatures or a faulty oil cooler
can also cause the transmission fluid to
overheat. Overheating reduces the service
life of the fluid.
TowingTowing of cars with automatic transmission,
see page 197.Descending hillsIf the speed of the car increases while
descending a steep hill, despite the acceler-
ator being released, the control module will
change down. If you desire more powerful
engine braking, manually select a lower
gear (see page 170).
WARNING
Remember to use the braking effect of the
engine (1st, 2nd or 3rd gear) when you
are descending long or steep hills to
spare the brakes.
Overheating can cause the brakes to
fade!
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185 Starting and driving
Economical drivingFactors affecting fuel
consumptionThe fuel consumption of a car is greatly
affected by driving conditions, climate, road
conditions, speed, driving technique, etc.Breaking-inFuel consumption may be somewhat
higher during the break-in period (the
first 3,000–4,000 miles (5,000–7,000 km)).Weather conditionsSummer temperatures give better fuel
economy than winter ones. The difference
can be as much as about 10%. Consump-
tion increases in cold weather because the
engine takes longer to reach its normal
operating temperature. The transmission
and wheel bearings also take longer to
warm up. Even distance affects consump-
tion: short journeys of 3–5 miles (5–8 km)
do not give the engine enough time to
reach its optimum temperature. Wind con-
ditions also have a marked effect on fuel
consumption.How to read the diagram:
If fuel consumption with the engine at
normal temperature is 28 mpg
(10 l/100 km), the actual fuel consumption
3 miles (5 km) after the engine has started
from cold will be:
–23.5 mpg (12 l/100 km) at outside temp.
of 68°F (+20°C) (increase of 20 %).
–17.7 mpg (16 l/100 km) at outside temp.
of 32°F (0°C) (increase of 60 %).
–14 mpg (20 l/100 km) at outside temp. of
–4°F (–20°C) (increase of 100 %).
It is clear from the diagram that both dis-
tance driven and outside temperature have
a significant impact on fuel consumption,
after a cold start.
If the car is normally driven on short jour-
neys, 3–5 miles (5–8 km), for example to
and from work, the average consumption
will be 60–80% above the normal level.
Driving techniquesTo obtain the best running economy, with
regard to fuel consumption and general
wear, the car must be serviced regularly.
High speed, unnecessary acceleration,
frequent braking and much changing
down all give higher fuel consumption.
Frequent gear changing in traffic, starting
in cold weather, the use of studded tires
and roof racks, and towing a camper all
increase fuel consumption.
Do not warm up the engine while the car
is stationary.
If idling, the engine will take much longer Percentage increase in fuel consumption
of engine starting from cold compared to
engine at normal temperature.
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186 Starting and drivingto reach its optimum temperature, and
engine wear is at its greatest during this
period. Drive off as soon as possible after
starting the engine and avoid high engine
speeds.
Drive as smoothly and thoughtfully as
possible. Match your driving to the prevail-
ing traffic conditions.
Driving in a low gear gives rise to higher
fuel consumption than driving in a high
gear because of the higher engine speed
for any given road speed. Always shift up
as soon as traffic conditions allow and
drive in the highest gear as much as
possible.
Check the tire pressure once a month.
Incorrect tire pressure increases tire
wear. It is preferable for the tire pressure
to be slightly high than too low. Under-
pressure increases fuel consumption.Check the fuel consumption regularly.
Increased fuel consumption can indicate
that something is wrong and that the car
needs to be checked. We recommend
that you contact a Saab dealer.
Practical road tests have demonstrated that
substantial savings in fuel consumption can
be made if the above advice is followed.
Road conditionsWet roads increase fuel consumption, as do
unpaved roads and driving in hilly country
(the amount of fuel saved driving downhill is
less than the additional amount required to
climb the hill).
Engine block heater3
33 3The following are just some of the benefits
to the car and the environment of using an
engine block heater:
Lower fuel consumption.
Reduced wear on the engine.
Inside of car warms up faster.
Exhaust emissions substantially reduced
over short runs.
The engine heater is effective at outside
temperatures up to 60–70°F (+15 –
+20°C). The warmer it is outside, the
shorter the time the engine heater needs to
be connected. Longer than 1.5 hours is
unnecessary.
If the car is equipped with a removable,
electric cabin heater that is not in use, store
this in the trunk.
WARNING
Never switch off the engine while driving
as the effect of the brakes and power
steering will be greatly reduced.
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206 Car careEmission control
systemsThe systems for controlling emissions to the
atmosphere require regular checking and
adjustment at the intervals specified in the
service program.
In addition to meeting the exhaust emission
regulations and thereby helping to keep the
environment clean, a correctly tuned engine
will also give maximum fuel economy.
Saab Trionic engine
management system, 4-cyl
engineThe Saab Trionic engine management
system is a unique Saab development that
combines sequential multiport fuel injection,
electronic distributorless ignition and turbo-
charger boost pressure control into one sys-
tem.
The Trionic engine control module (ECM)
monitors many different engine parameters
such as:
Intake manifold pressure.
Intake air temperature.
Crankshaft position.
Engine coolant temperature.
Throttle position.
The oxygen content of the exhaust gases.
The ECM receives information regarding
engine knocking from a sophisticated feed-
back function in the ignition discharge unit.
By processing all of this information, the Tri-
onic system can control fuel injector open-
ing duration, ignition timing and turbo-
charger boost pressure to provide excellent
engine performance while maintaining low
emissions and fuel consumption.
WARNING
Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth
defects and reproductive harm. In addi-
tion, certain fluids contained in vehicles
and certain products of component wear
contain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
NOTEThe Trionic engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the Engine
malfunction (CHECK ENGINE) light in
the main instrument illuminates, the Tri-
onic ECM has detected a problem. The
car will continue to operate, but perfor-
mance may be diminished. You should
have your car checked by a workshop as
soon as possible. We recommend that
you contact a Saab dealer.
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304 IndexDeep water, driving through
_______ 196
Definitions and terminology, tire ____ 254
Determining correct load, tires
_____ 256
Direction indicator stalk switch _____ 101
Direction indicators
______________ 101
Dome light, Convertible
__________ 232
Dome light, SportSedan __________ 232
Donor battery, boost starting
______ 200
Door handles
___________________ 48
Door mirrors
___________________ 124
Drive belt
______________________ 219
Drive belt, length
________________ 293
Driver’s seat with memory
_________ 21
Driving at night
_________________ 197
Driving in cold climates
___________ 187
Driving in deep water
____________ 196
Driving in hot climates ____________ 189
Driving techniques
______________ 185
Driving with a compact wheel fitted
_260
Driving with a heavy load on hilly
roads
________________________ 167
Driving with a load
______________ 196
Driving with a roof load ___________ 194
Driving with the trunk lid open
______ 196
EEasy entry, Convertible
____________ 73
EDR (Event Data Recorders)
______ 284
ESP®
________________________ 177
Economical motoring
____________ 185
Electrical system, technical data
____ 292Electrically adjustable seats
________ 20
Electric engine heater
____________ 186
Electric heating, front seats
________ 115
Electric windows
________________ 121
Electric windows, Convertible
_______ 77
Electronic Stability Program
_______ 177
Electronic steering wheel lock ______ 154
Emergency opening of the narrow
backrest, SportSedan
___________ 142
Emergency operation of the moonroof
132
Engine bay, cleaning
_____________ 267
Engine heater
__________________ 186
Engine immobilizer
_______________ 55
Engine management system
______ 206
Engine number
_________________ 299
Engine oil, checking
_____________ 210
Engine oil, grade
________________ 290
Engine oil, volume _______________ 291
Engine temperature gauge
_________ 88
Engine, description
______________ 205
Engine, technical data ____________ 289
Engines
_______________________ 292
Event Data Recorders (EDR)
______ 284
Extra electrical socket
____________ 136
FFacilitating entry to rear seat,
Convertible
____________________ 73
Factors affecting fuel consumption
__ 185
Filler cap
______________________ 160
Filling a portable fuel container
_____ 161Filling up
______________________ 159
Flat spots, tires
_________________ 246
Floor jack
______________________ 263
Folding down the rear seat backrest,
SportCombi
___________________ 143
Folding down the rear seat,
SportSedan ___________________ 138
Front fog lights __________________ 100
Front towing eye ________________ 197
Fuel container
__________________ 161
Fuel gauge
_____________________ 89
Fuel grade _____________________ 291
Fuel information
_________________ 161
Functions, car alarm
______________ 58
Fuse panel in luggage compartment
_240
Fuse table
_____________________ 239
Fuses
_________________________ 237
GGDO, garage door opener
_________ 126
Gearbox number
________________ 299
General safety instructions,
Convertible
____________________ 62
Glove box
_____________________ 136
Glovebox lighting
________________ 233
HHandbrake
_____________________ 179
Hazard warning lights
____________ 102
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