Seat Leon Owner's Manual page 203

When starting with a cold engine, noise
●
levels may briefly increase. This is quite
normal, and no cause for concern.
When the outside temperature is below
●
+5 °C (+41 °F), if the engine is diesel, some
smoke may appear under the vehicle when
the fuel-operated auxiliary heater is on.
Turning off the engine
Bring the vehicle to a full stop
●
With manual transmission, press the clutch
●
all the way down. If the vehicle is automatic,
set the selector lever to the P position.
Apply the electronic parking brake.
●
Briefly press the start-up button
●
WARNING
Never switch off the engine while the vehi-
cle is moving. This could cause loss of con-
trol of the vehicle, accidents and serious in-
jury.
The airbags and belt tensioners do not
●
work when the ignition is switched off.
The brake servo does not work with the
●
engine off. Therefore, you need to press the
break pedal harder to brake the vehicle.
Power steering does not work when the
●
engine is not running. You need more
strength to steer when the engine is switch-
ed off.
Start and driving
If the ignition is switched off, the steering
●
column could be locked, making it impossi-
ble to control the vehicle.
WARNING
Always take the key with you when you
leave the vehicle. This is particularly impor-
tant if there are children in the vehicle, as
they might otherwise be able to start the
engine or use power-operated equipment
(e.g. the electric windows), which could
›››
. cause injuries.
CAUTION
If the vehicle is stopped and the Start-
●
Stop system* switches off the engine, the
ignition remains switched on. Make sure
›››
Fig. 147.
that the ignition is switched off before leav-
ing the vehicle, otherwise the battery could
discharge.
If the engine has been driven at high
●
speed for a prolonged period of time, it
may overheat when switched off. To avoid
damage, allow the engine to run for ap-
proximately two minutes in neutral before
switching it off.
Note
After the engine is switched off the radiator
fan may run on for up to 10 minutes, even if
the ignition is switched off. It is also possi-
ble that the fan turns itself on once more if
the coolant temperature increases due to
the heat accumulated in the engine com-
partment or due to its prolonged exposure
to solar radiation.
Electronic immobilizer
The electronic immobiliser prevents unau-
thorised persons from driving the vehicle.
In the key there is a chip that automatically
deactivates the electronic immobiliser.
The electronic immobiliser is automatically
activated when the key is outside the vehicle.
If the following message is shown on the in-
strument panel display: SAFE , the vehicle
cannot be started.
The engine can only be started using a genu-
ine SEAT key with its correct code.
Note
A perfect operation of the vehicle is ensur-
ed if genuine SEAT keys are used.
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