fuel consumption SAAB 9-3 2009 Owners Manual

90 Instruments and controlsWhen a message is displayed
The odometer and tripmeter is temporarily
turned off when a two row message is dis-
played. The icon is displayed in the left part
of the display.
The warnings and indications that can be
shown on the SID are listed on page 294.
If there is more than one message on the
SID, a plus sign will be displayed to the left
of the first message. Each message will be
displayed for 10 seconds.
Press 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.
Fuel ØAverage fuel consumption
since function last reset
DistDistance to destinations.
Function can also be used as
a trip meter
Speed ØAverage 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 the trip computer
Press and hold the CLR button (approx.
3 seconds) until audible confirmation is
given.
The following functions will be rest:
FuelØ
 Speed Ø
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
the previously calculated arrival time.93_US_MY09.book Page 92 Tuesday, April 15, 2008 10:30 AM
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164 Starting and drivingThermal transmission protectionThe transmission has built-in protection
against overheating. If the temperature of
the transmission fluid exceeds 302 °F
(150 °C), engine torque will be limited to
147 ft.lbs. (200 Nm).
The following message is shown on the SID:
If this message appears, stop the car as
soon as it is safe to do so and allow the
engine to idle until the message has gone
out. The selector lever should be in
position P.
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. Gearbox too hot. Make a
safe stop. Open hood.
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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183 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 techniques To 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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184 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 heater3If block heater is installed the cord can be
found coiled in the engine compartment.
The 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.
 If the outside temperature is -22 °F
(-30 °C) the heater needs to be
connected at least 3 h.
 If the outside temperature is -14 °F
(-10 °C) the heater needs to be
connected at least 2 h. If the outside temperature is 32 °F (-0 °C)
the heater needs to be connected at least
1.5 h.
To have the heater connected less than
0.5 h is no use but can lead to driveabilitiy
problems.
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.93_US_MY09.book Page 184 Tuesday, April 15, 2008 10:30 AM
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204 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 mult iport 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.
NOTICEThe Trionic engine management system
continuously monitors the operation of
these systems and has on-board diag-
nostic capabilities (OBD II). If the Service
Engine Light also known as CHECK
ENGINE light in the main instrument illu-
minates, the Trionic ECM has detected a
problem. The car will continue to operate,
but performance may be diminished. You
should have your car checked by a work-
shop as soon as possible. We recom-
mend that you contact a Saab dealer.
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298 IndexDeactivating the rear window
switches
_____________________ 121
Deep water, driving through
_______ 193
Definitions and terminology, tire ____ 250
Determining correct load, tires
_____ 252
Direction indicator stalk switch _____ 101
Direction indicators
______________ 101
Dome light, Convertible
__________ 228
Dome light, SportSedan __________ 228
Donor battery, boost starting
______ 197
Door handles
___________________ 48
Door mirrors
___________________ 122
Drive belt
______________________ 215
Driver’s seat with memory
_________ 21
Driving in cold climates
___________ 185
Driving in deep water
____________ 193
Driving in hot climates ____________ 187
Driving techniques
______________ 183
Driving with a compact wheel fitted
_258
Driving with a heavy load on hilly
roads
________________________ 164
Driving with a load
______________ 192
Driving with a roof load ___________ 192
Driving with the trunk lid open
______ 193
EEDR (Event Data Recorders)
______ 282
ESP®
________________________ 175
Easy entry, Convertible
____________ 73
Economical motoring
____________ 183
Electrical system, technical data
____ 287Electrically adjustable seats
________ 20
Electric engine heater
____________ 184
Electric heating, front seats
________ 114
Electric windows
________________ 119
Electric windows, Convertible
_______ 77
Electronic Stability Program
_______ 175
Electronic steering wheel lock ______ 151
Emergency opening of the narrow
backrest, SportSedan
___________ 140
Emergency operation of the moonroof
130
Engine bay, cleaning
_____________ 267
Engine heater
__________________ 184
Engine immobilizer
_______________ 55
Engine management system
______ 204
Engine number
_________________ 292
Engine oil, checking
_____________ 208
Engine oil, grade
________________ 286
Engine temperature gauge
_________ 88
Engine, description
______________ 203
Engine, technical data ____________ 286
Engines
_______________________ 287
Event Data Recorders (EDR)
______ 282
Extra electrical socket
____________ 134
FFacilitating entry to rear seat,
Convertible
____________________ 73
Factors affecting fuel consumption
__ 183
Filler cap
______________________ 157
Filling a portable fuel container
_____ 158
Filling up
______________________ 156Flat spots, tires
_________________ 242
Floor jack
______________________ 259
Folding down the rear seat backrest,
SportCombi
___________________ 141
Folding down the rear seat,
SportSedan ___________________ 136
Front fog lights __________________ 100
Front towing eye ________________ 194
Fuel cap
_______________________ 157
Fuel container
__________________ 158
Fuel gauge
_____________________ 89
Fuel grade _____________________ 287
Fuel information
_________________ 158
Functions, car alarm
______________ 58
Fuse panel in luggage compartment
_236
Fuse table
_____________________ 235
Fuses
_________________________ 233
GGDO, garage door opener
_________ 123
Gearbox number
________________ 292
General safety instructions,
Convertible
____________________ 62
Glove box
_____________________ 134
Glovebox lighting
________________ 229
HHandbrake
_____________________ 177
Hazard warning lights
____________ 102
Head restraint, Convertible
_________ 74
Head restraints
__________________ 23
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