Seat LEON Owner's Manual page 242

Exterior mirrors
Check whether you can see enough of the
road behind the trailer with the standard rear
vision mirrors. If this is not the case, you
should have additional exterior mirrors fitted.
Both exterior mirrors should be mounted on
hinged extension brackets. Adjust the mirrors
to give sufficient vision to the rear.
Tow rope
Always use a cable between the vehicle and
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the trailer page 240.
Trailer rear lights
The trailer's rear lights should comply with
the statutory safety regulations
WARNING
Never transport people in a trailer. This could
result in fatal accidents.
Note
● Towing a trailer places additional demands
on the vehicle. We recommend additional
services between the normal inspection inter-
vals if the vehicle is used frequently for tow-
ing a trailer.
● Find out whether special regulations apply
to towing a trailer in your country.
240
Hitching and connecting the trailer
Schematic diagram: assignment of
Fig. 236
the pins of the trailer's electrical socket.
Key of the Schematic diagram
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page 240.
Pin Meaning
1 Left turn signal
2 Rear fog light
3 Earth, pins 1, 2, 4 to 8
4 Right turn signal
5 Rear light, right
6 Brake lights
7 Rear light, left
8 Reverse lights
9 Permanent live
10 Cable without positive charge
11 Earth, pin 10
Operation
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Fig. 236:
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Key of the Schematic diagram Fig.
Pin Meaning
12 Unassigned
13 Earth, pin 9
Electrical socket for trailer
The vehicle is fitted with a 13-pole power
socket for the electrical connection between
the trailer and the vehicle. If the system de-
tects that a trailer has been connected elec-
trically, the electrical equipment on the trailer
will receive voltage through this connection.
Pin 9 has a permanent live. This powers, for
example, the trailer's interior lighting. Pin 10
is only powered when the engine is running.
The charge wire (pin 10) charges, for exam-
ple, a caravan battery.
Pin 9 and 10 should not be connected to
each other to avoid discharging or damaging
the vehicle's battery.
The earth wires, pin 3, pin 11 and pin 13,
should never be connected to each other to
avoid overloading the electrical system.
If the trailer has a 7-contact connector, you
will need to use an adapter cable. In this case
the function corresponding to pin 10 will not
be available.
236: