ABS SAAB 9-3 2004 User Guide

165 Starting and driving
Electronic Stability
Program (ESP)Anti-skid systemThe Electronic Stability Program employs
both the antilock braking system (ABS) and
the traction control system (TCS). It is a
safety system that helps the driver to stabi-
lize the car in unusual circumstances that
can otherwise be difficult to handle.
How the ESP system worksThe Electronic Stability Program can help to
prevent the car from skidding by braking
one or several wheels independently of the
driver. The engine output is then also
reduced to prevent the driving wheels from
spinning. The car has sensors that measure
wheel speed, yaw rate, lateral acceleration,
steering wheel position and braking pres-
sure. The values provided by these sensors
are used to calculate the actual direction of
the car, the intentions of the driver and
whether the ESP should be engaged.
If this direction does not agree with that
intended by the driver, calculated from the
steering wheel position, the ESP is
engaged.
The ESP improves the driver’s chances
of retaining control over the car in critical
situations.
WARNING
When driving normally, the ESP system
helps to improve the car’s directional
stability. The ESP must not be regarded
as a system to enable the driver to main-
tain higher speeds. The same precau-
tions must be adopted as normal for safe
cornering and driving on slippery roads
must be adopted.
Illustration of how the system applies the
brakes on one or several wheels to help
avoid a skid
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166 Starting and drivingESP OFF
lights up under the speedometer if:
 a fault has been detected and the system
has therefore been switched off
 the system has been switched off
manually
ESP indicator lightWhen the remote control is turned to the ON
position, the lamp is lit for about 4 seconds
while the system performs self-diagnosis.
The light under the speedometer
comes on for a short period of time when the
ESP system is operative.
Operation of the ESP indicates reduced
cohesion between the tires and the road,
and that extra care should be taken by the
driver.Turning ESP system offThe system can be turned off manually with
the ESP button, whereupon the light
under the speedometer will come on. The
car must be travelling slower than 35 mph
(60 km/h). The TCS is also disengaged.
The ESP is always engaged during braking,
even if it has been switched off manually
with the ESP button.If a fault is detected in the system, the
following message will be displayed on
the SID:
The cruise control system (if active) will
automatically be disengaged if the ESP is
operative.
Stability control failure.
Contact Saab dealer.
NOTICEChanges to the chassis, such as a
change of wheels, shock absorbers or
springs, could affect the function of the
ESP system.
Always consult your Saab dealer before
changing any chassis components.
ESP button
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194 Car careSaab Trionic engine management
systemThe 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.
ORVR (Onboard Refueling Vapor
Recovery)All hydrocarbons formed when refueling will
be recovered by the car and not released
into the atmosphere. The hydrocarbons are
absorbed in an evaporative emission canis-
ter. When the engine is subsequently
started, the evaporative emission canister is
gradually purged as air is sucked into it
through a shut-off valve. The hydrocarbon/
air mixture passes through the evap canis-
ter purge valve and into the engine where it
is burned. “Refueling”, see page 147.
When refueling, make sure you screw the
filler cap on and keep turning until it has
clicked 3 times.
NOTICEThe 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
Trionic 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 Saab dealer
as soon as possible.
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200 Car careNote:
If incorrect coolant is used or added, the life-
time properties will be affected. Even if the
coolant is flushed from the system and
replaced with life-time coolant, life-time
properties are no longer retained and the
coolant must then be drained and replaced
at regular intervals.
Brake/clutch fluid and
brake padsCheckingBrake fluid should be changed according to
the service program. Refer to the Warranty
and Service Book.
The brake and clutch fluid reservoir is trans-
parent to facilitate checking of the fluid level.
The fluid level should lie between the MAX
and MIN marks.
If the level drops too low, the following mes-
sage appears on the SID:
Top up as necessary with DOT 4 brake
fluid. Do not use DOT 5 fluid.
Use only new brake fluid from a sealed
container.The brake fluid level will fall somewhat as
the brake pads wear. The MAX level in the
reservoir corresponds to the amount of
brake fluid required with new brake pads. If
the fall in fluid level is moderate, due to
normal brake pad wear, topping up is not
necessary.
If the brake fluid should require chang-
ing, this must be carried out at a Saab
dealer.
NOTICEIf the cooling system needs topping up,
mix the antifreeze with the appropriate
quantity of drinking water or distilled
water before adding it to the system.
If undiluted antifreeze is added, the
engine could still freeze and be damaged.
This is because the antifreeze will not mix
properly with the coolant before the ther-
mostat has opened to allow full circula-
tion.
WARNING
Brake fluid deteriorates as it becomes
old. Because it is hygroscopic, it absorbs
water from the air and, in time, could allow
vapor to form in the brake system, thus
reducing its performance. It is therefore
important that brake fluid be changed
regularly, as specified in the service
program.
Brake fluid level low.
Make a safe stop.
Contact Saab dealer.
Brake fluid reservoir
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234 Car careThe wheels and tires have been carefully
matched to the characteristics of the car and
play a key role in its outstanding roadhold-
ing and handling.
Do not take it for granted that a wheel/tire
combination will work in the best possible
way, just because it can be fitted to the car.
To ensure that the speedometer is as accu-
rate as possible it should be reprogrammed
if wheels of a different dimension are fitted.
Contact a Saab dealer.
Because of front wheel drive, the front tires
tend to wear faster than the rear ones. New
tires should always be fitted in pairs, so that
tires on the same axle have the same
amount of tread.
Store wheels lying flat or hanging – never
standing upright.
NOTICEAlways consult your Saab dealer before
changing the car’s wheels or tires on your
Saab.
Wide wheels and tires with side walls that
are too low can:
 be damaged in potholes, etc.
 cause springs, shock absorbers and
wheel bearings and body mountings
to be overloaded
 affect the function of the Electronic
Stability Program (ESP).
The speed and load limits of the tires
must not be exceeded; see page 239.
Wheels larger than 17" must not be fitted
on the Saab 9-3 for reasons above. The
permissible offset is 1.61 inch (41 mm).
WARNING
Mixing tires could cause you to lose
control while driving. If you mix tires of
different sizes or types (radial and bias-
belted tires), the vehicle may not handle
properly, and you could have a crash.
Using tires of different sizes may also
cause damage to your vehicle. Be sure to
use the same size and type tires on all
wheels. It’s all right to drive with your
compact spare temporarily, it was devel-
oped for use on your vehicle. See
“Compact spare tire” on page 243.
WARNING
If you use bias-ply tires on your vehicle,
the wheel rim flanges could develop
cracks after many miles of driving. A tire
and/or wheel could fail suddenly, causing
a crash. Use only radial-ply tires with the
wheels on your vehicle.
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249 Car care
Upholstery and trimTo remove fluff and hairs from the seats,
door armrests and headlining, use a
vacuum cleaner, a moist lint-free cloth, or a
clothes brush. Remove spots and dirt using
a cloth moistened with lukewarm soapy
water.
When using a stain remover, always work
from the outside towards the centre to avoid
leaving a ring. If a soiled ring or spot should
remain, it can usually be removed using
lukewarm soapy water or water alone.
Spots left by liquids, such as soft drinks or
thin oil, must be removed at once with an
absorbent material, such as kitchen towel-
ling. Then clean with a stain remover.
White spirit is recommended for removing
grease and oil stains. A medium stiff brush
may also be used.
Cleaning and caring for leather
upholsteryThe principal reason for treating leather
upholstery is to maintain its elegant appear-
ance and to provide it with a protective film.
Discolouration caused by dust and wear
mainly affects the lighter shades, although
this is not detrimental to the leather, indeed,
the patina resulting from use is often consid-
ered desirable in leather. But if the leather is
allowed to become too grubby, it can start to
look shabby.
The leather upholstery should be cleaned
and reconditioned twice a year in conjunc-
tion with spring and autumn inspections. In
very warm, dry climates the leather may
need more regular reconditioning. Recom-
mended conditioner – Saab Leather Care
Lotion.
Do not use unknown harsh polishing
agents, cleaning agents, sprays, coarse
soap or hot water.
Textile carpetingTextile carpeting should be vacuum
cleaned regularly. Carpeting can also be
cleaned using a brush or sponge and carpet
shampoo.
For safety reasons, vacuum cleaners that
are not earthed (grounded) must not be
used out of doors.Engine bayThe engine bay should be cleaned with an
engine degreasant and rinsed with hot
water. The headlights must be covered
over. Do not use a pressure washer. Avoid
spraying electrical components and con-
nectors.
Do not use petrol as a cleaning agent or sol-
vent when carrying out repairs or mainte-
nance. Saab recommends the use of envi-
ronmentally-friendly degreasants.
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274 Technical dataBrake system
Hydraulic unit for soft top, ConvertibleFoot brake (ABS)____________________ Hydraulic disc
brakes with vacuum
servo unit. Diago-
nally split circuits;
ventilated discs on
front wheels (some
variants also have
ventilated rear
discs). EBD function
(see page 161).
Park brake _________________________ Acts on rear wheels
Brake fluid _________________________ To DOT 4.
Do not use DOT 5.Disc diameter:
Front ____________________________ 11.22 in.
(285 mm) **)
Front (certain variants only) *) ________ 11.89 in.
(302 mm) **)
Rear ____________________________ 10.94 in. (278 mm)
Rear (certain variants only) *) ________ 11.49 in.
(292 mm) **)
Total friction area of brake pads:
Front ____________________________ 9.30 in.² (60 cm²)
Rear ____________________________ 4.96 in.² (32 cm²)
*)15" wheels and 16" aluminium wheels
must not be fitted to these variants since
the diameter of the brake discs does not
allow this.
**) ventilated
Oil capacity _______________________ 0.6 qt. (0.6 l)
Oil type __________________________ CHF 11S
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283 Index
Index
AA/C
__________________________ 101
ABS brakes
____________________ 161
ACC
_________________________ 103
Adjustment, steering wheel
________ 116
Air conditioning
_________________ 101
Air filter
_______________________ 198
Airbag
_________________________ 28
Anchorage eyes
________________ 137
Anti-corrosion treatment
__________ 253
Antilock braking system __________ 161
Anti-spin
______________________ 163
Ashtrays ______________________ 126
Autochecking of lights, warning and
indicator lights
__________________ 78
Autodimming
_______________ 129
, 130
Automatic climate control (ACC)
____ 103
Automatic tire pressure monitoring __ 229
Automatic transmission
___________ 153
BBattery
_______________________ 202
Bedding-in of new brake pads
_____ 151
Before towing a trailer
____________ 181
Bi-xenon headlights
_____________ 209Bi-xenon headlights, head light
levelling
_______________________ 91
Brake fluid, grade
_______________ 274
Brakes
________________________ 160
Braking _______________________ 160
Bulb changing
__________________ 208
Bulb table
_____________________ 221
Buying new tires
________________ 233
CCabin lighting
__________________ 123
Cabin lighting, Convertible
_________ 70
Car alarm
______________________ 48
Car transport ___________________ 186
Care of air conditioning
___________ 256
Change of address notification
_____ 264
Changing a tire
_________________ 245
Changing bulbs _________________ 208
Changing engine oil
_____________ 197
Changing the battery, remote control
_46
Changing wiper blades
___________ 206
Checking the number of remote
controls
_______________________ 45
Checks before towing a trailer
_____ 181
Child safety
_____________________ 21
Child safety locks, rear doors
_______ 44
Child seats
_____________________ 21
Cigarette lighter
_________________ 126
Cleaning the engine bay
__________ 249
Cleaning upholstery
_____________ 249Climate control system, manual
_____ 98
Closing the soft top manually,
Convertible
____________________ 60
Closing the soft top, Convertible
_____ 56
Clutch interlock
_________________ 152
Compact spare _________________ 243
Compass
______________________ 133
Condensation water, A/C
_________ 101
Convertible
_____________________ 53
Convertible, washing
_____________ 251
Coolant
_______________________ 199
Cruise control
__________________ 159
Cup holder
_____________________ 124
DDate codes, tires
________________ 243
Deep water, driving through
_______ 183
Definitions and terminology, tire ____ 240
Determining correct load, tires
_____ 242
Direction indicator stalk switch ______ 93
Direction indicators
_______________ 93
Dome light, Convertible
___________ 218
Dome light, Sport Sedan __________ 217
Donor battery, boost starting
_______ 187
Door handles
____________________ 40
Door mirrors ___________________ 128
Drive belt
______________________ 205
Drive belt, length
________________ 272
Driver’s seat with memory
__________ 19
Driving at night
_________________ 184
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