Volvo XC40 2019 Owner's Manual page 455

Driving with a trailer
When driving with a trailer, there are a num-
ber of points that are important to think about
regarding the towbar, the trailer and how the
load is positioned in the trailer.
Payload depends on the car's kerb weight. The
total of the weight of the passengers and all
accessories, e.g. towbar, reduces the car's
payload by a corresponding weight.
The car is supplied with the necessary equip-
ment for towing a trailer.
The car's towbar must be of an approved
•
type.
Distribute the load on the trailer so that
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the weight on the towbar complies with
the specified maximum towball load. Tow-
ball load is calculated as part of the car's
payload.
Increase the tyre pressure to the recom-
•
mended pressure for a full load.
The engine is loaded more heavily than
•
usual when driving with a trailer.
Do not tow a heavy trailer when the car is
•
brand new. Wait until it has been driven at
least 1000 km (620 miles).
The brakes are loaded much more than
•
usual on long and steep downhill slopes.
Downshift to a lower gear when shifting
manually and adjust your speed.
Follow the regulations in force for the per-
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mitted speeds and weights.
Maintain a low speed when driving with a
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trailer up long, steep ascents.
The maximum indicated trailer weight only
•
applies to heights up to 1000 metres
above sea level (3280 ft). At higher eleva-
tions, the engine output and the vehicle's
climbing ability are reduced due to the
reduced air density, and the maximum
trailer load must therefore be reduced. The
weight of the car and trailer must be
decreased by 10% for each additional
1000 m (3280 ft) or part thereof.
Avoid driving with a trailer on inclines of
•
more than 12%.
NOTE
Extreme weather conditions, driving with a
trailer or driving at high altitudes, in combi-
nation with poorer fuel quality than recom-
mended, are factors that considerably
increase the car's fuel consumption.
Trailer connector
An adapter is required if the car's towbar has a
13 pin connector and the trailer has a 7 pin
connector. Use an adapter approved by Volvo.
Make sure the cable does not drag on the
ground.
STARTING AND DRIVING
IMPORTANT
When the engine is switched off, the con-
stant battery voltage to the trailer connec-
tor can be switched off automatically so as
not to drain the starter battery.
Trailer weights
WARNING
Follow the stated recommendations for
trailer weights. Otherwise, the car and
trailer may be difficult to control in the
event of sudden movement and braking.
NOTE
The stated maximum permitted trailer
weights are those permitted by Volvo.
National vehicle regulations can further
limit trailer weights and speeds. Towbars
can be certified for higher towing weights
than the car can actually tow.
Level control*
The car's system for level control endeavours
to maintain a constant height regardless of
load (up to the maximum permissible weight).
When the car is stationary the rear of the car
lowers slightly, which is normal.
* Option/accessory.
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