Page 21
;
Suspension-Technical Data
027-1
027 Suspension-Technical Data
Suspension
027-1
SUSPENSION
Tightening Torques
Nm
ft·lb (in-I b)
Panhard rod to body or rear
axle
40-70
30-52
Torque ann to body or rear
axle
lubricated bushings
21-35
15-26
dry bushings
40-70
30-52
Wheel hubs to drive axle
(locking nut)
290-310
214-229
Wheel lug bolts
105-125
77-92
Wheel lug nuts
90-110
66-81
5
10
(44 in-Ib)
All other fasteners
M5 bolt
M6 bolt
M8 bolt
M10 bolt
(89 in-I b)
20
15
40
30
Front Coil Spring Specifications
1.
2.
3.
4.
Upper control ann
Spring seat
Coil spring
Bump stop
5.
6.
7.
8.
Shock absorber
Lower ball joint
Lower control ann
Upper ball joint
Spring color codes
Spring free length
Standard chassis
green, light green, black, or
white
373mm
14.7 in.
yellow or red
380 mm
15.0 in.
pink or brown
388mm
15.3 in.
blue or light blue
372mm
14.6 in.
301 mm
11,8 in.
Tightening Torques
Nm
ft·lb (in·lb)
Front shock absorber to lower
control ann
90-100
66-74
Front suspension coil spring
seat to control ann
55-110
41--81
Anti-roll bar bracket to lower
control ann
40-55
30--41
Power steering rack to body
60-80
44-59
black or white (left spring)
311 mm
12.24 in.
52-66
green or light green (right
spring)
308mm
12.12 in.
293 mm
11.5 in.
Spring link front mount to body
Sport chassis
silver or bronze
Rear Coil Spring Specifications
Spring color codes
Spring free length
Standard chassis
70-90
Sport chassis
silver or bronze
SUSPENSION
Page 22
Body-Technical Data
028-1
028 Body-Technical Data
Body
028-1
BODY
Tightening Torques
Nm
ft-Ib (in-Ib)
Tightening Torques
Nm
ft-Ib (in-Ib)
All other fasteners
AlC system tightening torques
AlCcompressor-to-evaporator
hose
connection at compressor
(pad-type)
22-27
16-20
hose fitting at evaporator
28-39
21-29
AlC compressor-to-condensor
hose
connection at compressor
(pad-type)
22-27
16-20
hose fitting at condensor
21-28
15-21
AlC condensor-toreceiver/dryer hose
hose fitting at condensor
14-20
10-15
hose fitting at receiver/dryer
14-20
10-15
AlC evaporator-to
M8 bolt
20
15
M10 bolt
40
30
Body Specifications
Convertible pump hydraulic
fluid
Aeroshell
Fluid 4/Shell
Code 60 421
(Saab part no.
3018694
Convertible top hydraulic
pump minimum working
pressure
25 bar
365 psi
1.75 dl
4.9 oz.
Ale System Specifications
receiver/dryer hose
Refrigerant oil capacity
(compressor replacement)
hose fitting at evaporator
14-20
10-15
hose fitting at receiver/dryer
14-20
10-15
21-27
15-20
AlC expansion valve pressure
equalization fitting to
evaporator
7-10
(62--89 in-lb)
Oil fill plug to AlC compressor
8-12
(71-106 inIb)
Convertible top hydraulic hose
fittings
5.1-6.2
(45-55 in-Ib)
Seatbelt guide bolt to body
(convertible models)
24-40
18-30
AlC Coolant temperature
switch
All other seat belt mounting
bolts
45±10
33±7
opening temperature
AlC expansion valve to
evaporator
Refrigerant oil capacity per
component (due to sudden
leakage)
evaporator
0.5 di
1.4 oz.
receiver/dryer
0.2 c!i
0.57 oz.
condenser
0.2 dl
0.57 oz.
hose
0.2 dl
0.57 oz.
2.9 bar
41 psi
115°C
239°F
switch closed
4.0-6.2°C
39.2-43.1 of
switch open
0.4-2.6°C
33-36.6°F
AlC refrigerant pressure
switch (low gas pressure)
opening pressure
AlC Anti-frost switch
All other fasteners
M5 bolt
5
(44 in-!b)
M6 bolt
10
(89 in-Ib)
continued
BODY
Page 23
Fundamentals for the Do-it-yourself Owner
100-1
100 Fundamentals for the
Do-it-yourself Owner
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100-1
Form and Function
100-2
Engine
100-2
Saab Turbo with APC
100-2
Fuel Injection
100-3
Ignition System. . . . . . . . . . . . . . . . . . . . . . . . 100-4
Electrical System . . . . . . . . . . . . . . . . . . . . . . 100-4
Transmission and Drive Train
100-5
Brakes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100-6
Steering and Suspension . . . . . . . . . . . . . . . . 100-6
Body
100-7
I
How To Use This Manual
100-7
Warnings, Cautions and Notes. . . . . . . . . . . . 100-7
,
Getting Started
100-8
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100-8
Lifting the Car. . . . . . . . . . . . . . . . . . . . . . . . . 100-8
To raise car safely
100-9
To work safely under a car
100-9
General Advice for the Beginner .... 100-10
Planning Ahead .. . . . . . . . . . . . . . . . . . . . . 100-10
Cleanliness
100-10
Non-reusable Fasteners. . . . . . . . . . . . . . . . 100-10
Tightening Fasteners . . . . . . . . . . . . . . . . . . 100-10
Bolt Torque
100-10
Gaskets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100-11
Seals
100-11
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100-11
Electrical Testing ... . . . . . . . . . . . . . . . . . . 100-11
Wire Repairs. . . . . . . . . . . . . . . . . . . . . . . . . 100-12
GENERAL
Although the Saab 900 is a sophisticated and complex machine, nearly all basic maintenance and most repairs can be
accomplished by any interested owner with basic mechanical
skills and the right information. While some of the repairs covered in this manual are complicated and require special
knowledge and equipment, most of the care that is required in
the I~etime of the average Saab is well within the capabilities
of the do-rt-yourselfer.
Buying Parts
Information You Need To Know
Genuine Saab Parts
Non-returnable Parts
Tools
Basic Tool Requirements
Jack Stands
Oil Change Equipment
Torque Wrench
Feeler Gauges
Volt-Ohm Meter (VOM) or Multimeter
Saab Special Tools
;.;.:.;.:.:.;.:.;.;.
:.:.:.:...;.;.: .....
100-12
100-12
100-12
100-14
100-14
100-14
100-16
100-16
100-17
100-17
100-17
100-17
Emergencies
100-18
Changing a Tire
100-18
Car Will Not Start
100-18
Jump-Starting
100-18
Overheating
100-19
Oil Pressure Warning Light
100-20
Brake Fluid Level Warning Light
100-20
Anti-Lock Brake System Warning Indicator .. 100-20
Dim Lights
100-20
Towing
100-20
Spare Parts Kit
100-20
Spare Parts Kit - Basic Contents
100-20
Spare Parts Kit - Additional Contents
100-20
TABLES
a. General Tightening Torques
(unless noted otherwise in text)
b. Bolt Diameter and Wrench Size
100-11
100-11
CAUTION
Do not use this manual unless you are familiar with basic automotive repair procedures and safe workshop practices. This
manual illustrates the workshop procedures required for most
service work; it is not a substitute for full and up-to-date information from the vehicle manufacturer or for proper training as
an automotive technician. Note that it is not possible for us to
anticipate all of the ways or conditions under which vehicles
may be serviced or to provide cautions as to all of the possible
hazards that may result.
GENERAL
Page 24
100-2
Fundamentals for the Do-it-yourself Owner
CAUTION
Your common sense and good judgment are crucial to safe
and successful service work. Read procedures through before starting them. Think about whether the condition of your
car, your level of mechanical skill, or your level of reading
comprehension might result in or contribute in some way to an
occurrence which might cause you injury, damage your car, or
result in an unsafe repair. If you have doubts for these or other
reasons about your ability to perform safe repair work on your
car, have the work done at an authorized Saab dealer or other
qualified shop.
This section of the manual is intended to help the beginner
get started smartly and safely with Saab maintenance and repair. The section begins with Form and Function, a general
description of the car and its individual systems, followed by a
discussion on How To Use This Manual.
Tips on mechanic's skills and workshop practices that can
help the beginner do a faster, complete, and more thorough job
can be found under Getting Started. Tools describes the basic tools needed to do most of the procedures in this manual.
The section ends with a quick reference guide to emergencies-what to do when the car won't start or when a warning
light comes on, including basic troubleshooting and information on how to gauge the seriousness of a problem.
FORM AND FUNCTION
89048
Fig. 1. Cutaway of Saab 900 16 valve overhead camshaft engine.
The engine is sloped at 45% to lower the car's center of gravity and to allow for a low hood line. The transmission is bolted
to the bottom of the engine.
While the complexity of the Saab 900 may at first seem
overwhelming to the do-it-yourself owner, it can be simplified
and more easily understood by viewing the car as an assembly of simpler systems, each performing its own independent
functions.
Engine
The Saab 900 models covered by this manual are powered
by a liquid-cooled, four-cylinder, 16-valve, in-line engine. The
power train is integrated with the clutch, transmission, and differential in a compact, lightweight power unit that occupies
very little space. See Fig. 1.
The 16 valve cylinder head uses self-adjusting hydraulic
cam followers to actuate the valves. Each valve has a large
flow area to allow the engine to breath efficiently. Because the
cylinder head has four valves per cylinder instead of two, individual valves are subject to far less demanding working conditions. See Fig. 2.
Saab Turbo with APC
In addition to the naturally aspirated engine family, the 900
is available with a turbocharged engine. See Fig. 3. The turbo
FORM AND FUNCTION
Fig. 2. Cutaway view of valve train.
Page 25
Fundamentals for the Do-it-yourself Owner
engine delivers extra power at low engine speeds when demanded, but during normal driving it is as economical as the
naturally aspirated engine. The turbocharged engine offers
the same acceleration as many six-cylinder and eight-cylinder
engines, but without the well-known disadvantages of excessive weight, unwieldy bulk with too many moving parts, and
high fuel consumption.
100-3
Octane rating
100
Energy utilization
with APC
97
Risk
margins
93
91
~_I".""~:~
Hot eXhauslgasses
Energy utilization
without APC
89050
2000
Fig. 3. Cutaway of turbocharger system. The intake air is compressed by the exhaust-driven turbocharger, It is then cooled
by as much as 11 QOF in the intercooler before it enters the engine, The intercooler increases power and reduces the thermal stresses in the engine,
Safety margins must be built into the design of an internal
combustion engine to allow for manufacturing tolerances,
changes in the condition of the engine, and varying climatic
conditions and fuel quality. As a result, the energy content of
the fuel cannot be fully utilized. To answer this problem, the
Saab APC system was .designed to ensure maximum utilization of the energy in the fuel at all times. The boost pressure
delivered by the turbocharger is continually adjusted to suit
the knocking limit of the air/fuel mixture in the cylinders. Therefore, the engine adjusts itself automatically to the fuel being
used. The higher the octane, the higher the maximum engine
power. See Fig. 4.
NOTE
On Saab Turbo SPG models, premium unleaded fuel is required at all times.
The APC system consists of simple electronics. A knock
sensor on the engine block senses the onset and degree of
engine knock and transmits an electrical signal to the control
unit. The control unit also receives signals from the intake
manifold pressure sensor and the ignition system (engine
rpm). The data is processed by the control unit, which transmits a signal to the APC solenoid valve to regulate the boost
pressure (via the wastegate) of the turbocharger. Therefore,
maximum operating boost pressure under full engine load is
electronically governed. In the event of an APC system malfunction, the wastegate is mechanically adjusted to provide a
safe, low boost pressure limit.
4000
Engine
speed
89051
Fig. 4. A conventional engine must incorporate safety margins for
engine tolerances, various climatic conditions, and variations
in fuel grades available. The Saab APC turbo engine adjusts
itself automatically to suit the operating conditions.
Fuel Injection
All Saab 900 16-valve models use an electronically controlled Bosch LH-Jetronic fuel injection system. See Fig. 5. LH
is a German acronym for hot wire, or "Luft masse messen mit
hitzdraht". Hot wire refers to the operation of the air mass
meter, which is used to measure the air entering the engine.
The intake air flows acro~s an electrically heated platinum
wire in the tubular air meter. See Fig. 6. The control unit then
measures the electrical energy necessary to maintain the wire
at a constant temperature as a measure of the air mass. At the
same time the control unit senses the engine speed and the
engine temperature, which enables it to meter the correct
quantity of fuel to suit the requirements of the engine at all
times.
Fuel is delivered to the engine through the fuel injectors.
The intake manifold is equipped with one fuel injector per cylinder. Each injector is fitted upstream of the corresponding intake valves and actuated electro-magnetically by signals from
the electronic control unit. The control unit calculates the
opening time for the injectors so that the quantity of the fuel injected will be correct in relation to the quantity of air flowing to
the engine. See Fig. 7.
FORM AND FUNCTION
Page 26
100-4
Fundamentals for the Do-it-yourself Owner
89052
1. Fuel tank with in-tank fuel
pump
2. Electronic control unit
3. Air mass meter
4. Throttle valve
5. Automatic Idle Control (AI C)
6. Fuel injector
7. Temperature sensor
Fig. 5. SChematic of LH-Jetronic fuel injection system used on all
saab 16 valve engines.
Fig. 7. Cutaway view of engine showing operation of the electromagnetic fuel injector. The injectors are mounted in the intake
manifold, one for each cylinder.
right time. Since each cylinder has to have a spark once for
every two revolutions of the crankshaft, the distributor turns at
one-half crankshaft speed. The basic system is shown schematically in Fig. 8.
Electrical System
Many components, and all electrical accessories, are powered by the car's electrical system. The electrical system uses
a battery to store energy, an engine-driven alternator to generate electricity and recharge the battery, and various wiring
harnesses and other circuits to distribute electric power to the
rest of the car. The electrical system is represented in Fig. 9.
Fig. 6. View of LH (hot wire) air mass meter. The platinum heated
wire is maintained at a constant temperature and measures
the mass of the air flow going into the engine. It uses solidstate circuitry and has no moving parts to wear out. The inset
shows a front view of air mass meter.
Ignition System
The electronic ignition system creates the high-voltage
spark necessary to ignite the combustible air/fuel mixture in
the cylinders. The ignition coil boosts the voltage so that the
spark will be hot enough to ignite the air/fuel mixture. The timing of the spark is controlled by the ignition control unit.
The ignition distributor, synchronized to the rotation of the
engine, delivers the spark to the right cylinder at precisely the
FORM AND FUNCTION
The flow of electricity depends upon a closed-loop path-a
complete circuit. Electrical current flows through wires to the
consumer, a light bulb for example, and back to the battery in
a complete circuit. The electrical route back to the source,
which completes the circuit, is called a path to ground. Every
consumer of electrical power in the car must have a source of
power and a path to ground in order to operate.
Commonly, the electrically conductive metal structure of
the automobile is used as a ground path. The negative (-) terminal of the battery connects to the car body, and all of the
electrical consumers in the car make a ground connection to
the car body, thus eliminating the need for many feet of additional wire.
Electrical components near the engine are often grounded
directly to the engine, which is then grounded to the body.
Some components are grounded through their housings
which are bolted to a ground. Electrically, the effect is the
same.
Page 27
Fundamentals for the Do-it-yourself Owner
100-5
Ignition
control
unit
Ignition coil
Rg. 8. SChematic of typical ignition system.
Altemator
!}]
f
.t=J
<l~1 • \" ~
!~~ • OJ}
89056
Electrical consumers
Rg. 9. The alternator generates electricity to recharge battery and
power other electrical consumers.
Transmission and Drive Train
The transmission is mounted beneath the engine and is arranged in a housing together with the final drive. See Fig. 10.
The transmission is chain driven off the engine via the clutch.
Although the Saab engine develops a substantial amount of
power, it does so best at relatively high revolutions per minute
(rpm). To handle all driving conditions, it is necessary to use
89057
Fig. 10. The transmission and final drive are mounted beneath engine.
gearing to change the ratio of engine rpm to vehicle speed.
See Fig. 11.
A manual transmission arranges several sets of gears in a
common housing. A set of two gears determines a gear ratio,
each suited to a particular range of driving speeds. A shifting
mechanism allows the driver to change from one gear ratio to
the next to match vehicle speed.
In an automatic transmission, hydraulic fluid under pressure in a complex network of passages, valves and control
mechanisms engage and disengage constantly meshed planetary gear sets. Hydraulic controls responding to vehicle
speed, engine load, throttle position and gear shift position select the appropriate gear ratio.
FORM AND FUNCTION
Page 28
100-6
Fundamentals for the Do-it-yourself Owner
The brakes act to slow or stop the car by causing friction.
Since cars are relatively heavy, the friction required to stop
safely and effectively is quite high, and generating this friction
requires considerable force. The cars covered by this manual
use either an engine vacuum boost system or hydraulic boost
system (cars with ASS) to multiply the force applied to the
brake pedal and to distribute it uniformly to the wheels.
Clutch
The brake pedal is connected by a mechanical linkage to
the master cylinder, mounted on the firewall at the back of the
engine compartment. A piston in the master cylinder creates
hydraulic pressure in the brake lines going to the wheels.
Differencial with
final drive
89058
Fig. 11. The gear reduction between the engine and the driven wheels
takes place in three stages: the primary chain drive, the transmission gears, and the final drive,
At each wheel, the hydraulic pressure acts on the brake caliper to cause friction and slow the wheel. The sizes of the hydraulic components are such that the driver's force applied to
the brake pedal is multiplied many times by the time it reaches
the wheels.
1990 and later 900 models are equipped with an anti-lock
braking system (ASS). As the name implies, the purpose of
this system is to prevent the wheels from locking during hard
braking. Speed sensors at each wheel sense when the wheel
is about to lock, and an electronic system modulates the braking force to that wheel. See Fig. 13.
Brakes
All of the Saab models covered in this manual feature disc
brakes at all four wheels. A disc brake squeezes pads lined
with friction material against both sides of a flat, round brake
disc, called a rotor. A typical disc brake assembly is shown in
Fig. 12.
Pickup
coil
Toothed
gearwheel
89060
Splash
shield
Fig. 13. A moisture-proof sensor senses the rolling speed of each
wheel. The sensor is inductive in that an electric current is induced in the pickup coil every time a tooth on the gearwheel
passes the sensor,
Steering and Suspension
89059
Fig. 12. Disc brake assembly showing disc, caliper, and splash shield,
Caliper assembly holds pads with friction material.
FORM AND FUNCTION
The suspension and steering systems are what allow the
wheels to move and turn for a smooth ride, stability and directional control. See Fig. 14. The suspension system is the combination of springs, shock absorbers, and other stabilizing
devices that support the weight of the car and cushion the effects of bumps. On some models, stabilizer bars aid stability
by transferring some of the cornering force acting on the suspension.
Page 29
Fundamentals for the Do-it-yourself Owner
100-7
~----------------
89061
Fig. 14. The suspension and steering system gives the driver control
over the car by supplying constant feedback on the car's reactions.
The steering system consists of the steering rack mechanisms, linkages, and a belt-driven hydraulic pump. Power-assisted steering uses hydraulic fluid under pressure to do some
of the work normally done by the driver turning the steering
wheel.
o TECHNICAL DATA lists all of the specifications used
throughout the manual and is intended to be used as a quick
reference guide for the more experienced technician familiar
with Saab 900 cars. 1 LUBRICATION AND MAINTENANCE
covers the maintenance schedules and service procedures
needed to do all of the Saab recommended scheduled maintenance work.
Body
The body is the basic building block. All of the Saab models
covered in this manual feature unitized body construction,
meaning that they do not have a separate frame. A complex
body shell is the main structural platform to which all the other
systems are attached. Subassemblies attach engine, drivetrain, suspension, and steering systems to the basic body
structure.
The remaining seven sections (2 through 8) are repair oriented and are divided into multiple repair groups. For clarity
and ease of use, each major section begins with a General repair group, e.g. 200 Engine-General. These "00" (double
zero) groups are mostly descriptive in nature, covering topics
such as theory of operation and troubleshooting. The remainder of the repair groups contain the more involved and more
detailed system repair information.
The doors, the instrument panel, the seats, and other interior trim pieces are also added to the body shell. Other parts of
the body shell function as mounting points for the other major
and minor subsystems.
A master listing of the 9 sections and the corresponding 69
individual repair groups can be found at the beginning of each
section. Thumb tabs on the first page of each repair group
page help locate the groups quickly.
How TO USE THIS MANUAL
The manual is divided into 9 sections:
o TECHNICAL DATA
Each repair group has its own Table of Contents listing the
major subject headings within the group, and the pages on
which they begin. Page numbers throughout the manual are
organized according to the repair group system. For example,
you can expect to find information on the turbocharger (Repair
Group 291) beginning on page 291-1. A comprehensive index
is found at the back of the manual.
1 LUBRICATION AND MAINTENANCE
2 ENGINE
3 ELECTRICAL SYSTEM
4 TRANSMISSION
5 BRAKES
6 STEERING AND WHEEL ALIGNMENT
7 SUSPENSION
8 BODY AND STEERING
Warnings, Cautions and Notes
Throughout this manual are many passages with the headings WARNING, CAUTION, or NOTE. These very important
headings have different meanings.
HOW TO USE THIS MANUAL
Page 30
100-8
Fundamentals for the Do-It-yourself Owner
WARNING
A waming is the most serious of the three. It wams of unsafe
practices that are very likely to cause injury, either by direct
threat to the person(s) doing the work or by increased risk of
accident or mechanical failure while driving.
CAUTION
A caution calls attention to important precautions to be observed during the repair work that will help prevent accidentally damaging the car or its parts.
NOTE
A note contains helpful information, tips that will help in doing
a better job and completing it more easily.
WARNING
• Remove rings, watches, and bracelets. Aside from the dangers of moving parts, metallic jewelry conducts electricity and
may cause shorts, sparks, bums, or damage to the electrical
system when accidentally contacting the battery or other electrical terminals.
• Disconnect the battery negative (-) cable whenever working
on or near the fuel system or anything that is electrically powered. Accidental electrical contact may damage the electrical
system or cause fire.
• Never work under a lifted car unless it is solidly supported
on jack stands that are intended for that purpose. Do not support a car on cinder blocks, bricks, or other objects that may
shift or crumble under continuous load. Never work under a
car that is supported only by the lifting jack.
• The fuel system is designed to retain pressure even when
the ignition is off. When working with the fuel system, loosen
the fuel lines very slowly to allow the residual pressure to dissipate gradually. Avoid spraying fuel.
Please read every WARNING, CAUTION, and NOTE at the
front of the manual and as they appear in repair procedures.
They are very important. Read them before you begin any
maintenance or repair job.
• Fuel is highiy flammable. When working around fuel, do not
smoke or work near heaters or other fire hazards. Keep an approved fire extinguisher handy.
Some WARNINGs and CAUTIONs are repeated wherever
they apply. Read them all. Do not skip any. These messages
are important, even to the owner who never intends to work on
the car.
• Illuminate the work area adequately and safely. Use a portable safety light for working inside or under the car. A fluorescent type light is best because it gives off less heat. If using a
light with a normal incandescent bulb, use rough service bulbs
to avoid breakage. The hot filament of an accidentally broken
bulb can ignite spilled fuel or oil.
GETTING STARTED
• Keep sparks, lighted matches, and open flame away from
the top of the battery. Hydrogen gas emitted by the battery is
highly flammable. Any nearby source of ignition may cause
the battery to explode.
Most of the necessary maintenance and minor repair that a
Saab will need can be done with ordinary tools, even by owners with little or no experience in car repair. Below is some important information on how to work safely, a discussion of
what tools will be needed and howto use them, and a series of
mechanic's tips on methods and workmanship.
Safety
Although an automobile presents many hazards, common
sense and good equipment can ensure safety. Accidents happen because of carelessness. Pay attention and stick to these
few important safety rules.
WARNING
• Never run the engine in the work area unless it is well-ventilated. The exhaust should be vented to the outside. Carbon
Monoxide (CO) in the exhaust kills.
• Remove all neckties, scarfs, loose clothing, or jewelry when
working near running engines or power tools. Tuck in shirts.
Tie long hair and secure it under a cap. Severe injury can result from these things being caught in rotating parts.
GETTING STARTED
• Never lay tools or parts in the engine compartment or on top
of the battery. They may fall into confined spaces and be difficult to retrieve, become caught in belts or other rotating parts
when the engine is started, or cause electrical shorts and
damage to the electrical system.
• Some of the cars covered by this manual are equipped with
a Supplemental Restraint System (SRS) that automatically
deploys an airbag. The airbag unit uses an explosive device
to electrically ignite a powerful gas. On cars so equipped, any
work involving the steering wheel should only be performed by
an authorized Saab dealer. Performing repairs without disarming the SRS may cause serious personal injury.
Lifting the Car
For those repairs that require raising the car, the proper
jacking points should be used to raise the car safely and avoid
damage. There are six jacking points from which the car can
be safely raised. The jack supplied with the car by Saab can
only be used at the four side points-just behind the front
wheel or just in front of the rear wheel. In addition to the four
side points, there are front and rear center jacking points that
can be used to lift one end. See Fig. 15.