157 Starting and driving
Trailer weightMaximum recommended trailer weights for
different gradients, for best comfort and
driveability for manual and automatic cars,
are shown in the drawing.
Make sure you are familiar with the law
regarding speed limits for towing, maxi-
mum trailer weights, trailer-braking
requirements, and also any special
driving-license provisions
(see also page 222).
The specified trailer weights and gradients
assume you are operating in hilly terrain and
therefore apply only to short trips.Recommendations for cars with auto-
matic transmission
The following time limits are based on the
capacity of the cooling system in warm
weather, i.e. approximately 86°F (30°C).
The following time limits are based on the
capacity of the cooling system in warm
weather, i.e. approximately 104°F (40°C).
When negotiating long hills, bear the follow-
ing important considerations in mind:
Do not drive continuously with the WINTER
mode selected in hilly country when you are
towing a trailer, as this will increase fuel con-
sumption and risk overheating the transmis-
sion.
NOTESaab 9-3 Viggen cannot be equipped
with a trailer hitch because of the design
of the body and chassis.
WARNING
When towing a trailer, do not attempt to
negotiate a hill having a gradient in
excess of 15%. The weight distribution
over the front wheels of the car will be
insufficient to prevent wheelspin, making
further progress impossible.
In addition, the parking brake may not
always be able to hold the car and trailer
securely, with the result that the wheels
can start to slide downhill.
Gradient
of hill, % Maximum
trailer
weight, lbs.
(kg)Maximum dura-
tion, minutes
10-15 1890 (850) 15 max.
Gradient
of hill, % Maximum
trailer
weight, lbs.
(kg)Maximum dura-
tion, minutes
10-15 1110 (500) 15 max.
IB1270
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158 Starting and drivingTrailer hitch loadThe weight distribution on the trailer makes
a lot of difference to the handling properties
of the car and trailer combination.With sin-
gle-axle trailers, whenever possible, con-
centrate the load over the axle and keep it
as low as possible.
The trailer should be loaded so that the
maximum load on the towbar ball is 5% to
7% of the trailer weight with a maximum per-
missible tongue weight of 165 lbs (75 kg).
Note that this load must be added to the total
load for the car. If this now exceeds the
specified load capacity, the load in the trunk
will have to be reduced by a corresponding
amount. Driving considerationsAlways take extra care when towing a
trailer, as the car’s handling will be different
and its braking effect reduced. The trailer’s
braking system and suspension also have a
considerable effect on these characteris-
tics, see also "Driving with a load" page
160.
If the car is equipped with automatic trans-
mission, select position 1 when ascending
or descending steep hills.
Driving with a roof rack
loadThe maximum permissible roof load is
220 lbs (100 kg). Note that the roof load is
included in the car’s maximum permissible
load (see page 221).
Strong, sturdy roof carriers designed spe-
cially for the car are available from your
Saab dealer. Always secure the roof load
safely.
NOTEIf the “Automatic transmission fault
indicator” warning comes on, cease
towing until the problem has been recti-
fied.
WARNING
A roof load will affect the car’s center
of gravity and aerodynamics. Be
aware of this when cornering and driv-
ing in crosswinds.
Adjust your speed to the prevailing
conditions.
IB880
Distribution of load in trailer aLight
b Moderate
cHeavy
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222 Technical data Maximum permitted load in trunk
Coupé and 5-door at curb weight plus
4 passengers à 155 lbs. (70 kg) _______ 130 lbs.(60 kg)
For each passenger less in the rear seat the load may be
increased by 100 lbs. (45 kg)
Convertible at curb weight and
3 passengers à 155 lbs. (70 kg) _______ 120 lbs. (55 kg)
Coupé and 5-door at curb weight and
rear seat right down ________________ 475 lbs. (215 kg)
WARNING
The GVW and maximum axle loads must not be exceeded.
Note that if some accessories (e.g. towbar, CD changer) are
fitted, the available load capacity is reduced by the weight of
these items.
When goods are being transported their security is important,
especially if the car is being used with the rear seat down.
Max. permitted roof load ____________ 220 lbs. (100 kg)
Trailer weights:
Trailer with brakes _________________ Max. 2000 lbs.
(900 kg)
Trailer without brakes _______________ Max. 1000 lbs.
(450 kg)
Recommended towbar-ball load ______ 110-165 lbs.
(50-75 kg)
Maximum towing speed, trailer with
brakes __________________________ 62 mph (100 km/h)
The above max. weights and speed limit are those which Saab
Automobile AB permits. Note that the national rules may set lim-
its to permitted weights and speed; see also page 156.
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