Seat LEON 2019 Owner's Manual page 252

CAUTION
The starter motor or the engine may be
●
damaged if you try to start the engine while
driving or if you restart it immediately after
switching it off.
When the engine is cold, you should
●
avoid high engine speeds, driving at full
throttle and over-loading the engine. Risk
of engine damage.
For the sake of the environment
Do not warm-up the engine by running the
engine with the vehicle stationary. Start off
immediately, driving gently. This helps the
engine reach operating temperature faster
and reduces emissions.
Note
Electrical components with a high power
●
consumption are switched off temporarily
when the engine starts.
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.
Natural gas engines (CNG) always start
●
up with petrol, as a certain operating tem-
perature is required for running with gas.
Once the required operating temperature is
250
Driving
reached, the engine will automatically
switch to natural gas mode.
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.
●
Vehicles with ignition locks: Turn the key to
●
›››
position Fig. 254 .
1
Vehicles with start buttons: Briefly press the
●
›››
start-up button Fig. 255.
Emergency disconnection
If the engine does not switch off after briefly
pressing the starter button, an emergency
disconnect will be required:
Press the starter button twice within 3 sec-
●
onds or press it once for more than 1 sec-
›››
ond in Ignition and start button* on
page 248.
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.
If the ignition is switched off, the steering
●
column could be locked, making it impossi-
ble to control the vehicle.
Never remove the key from the ignition if
●
the vehicle is in motion. Otherwise, the
steering could suddenly lock, making it im-
possible to steer the vehicle: risk of acci-
dent!
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
that the ignition is switched off before