2019 Seat Leon engine

Driving
Foresight when driving
If you think ahead when driving, you will need
t o br
ake l
ess and thus accel
erate less. Take
advantage of the inertia of the vehicle when-
ever possible, with a gear engaged. This
takes advantage of the engine braking effect,
reducing wear on the brakes and tyres. Emis-
sions and fuel consumption will drop to zero.
Changing gear to save energy
An effective way of saving is to change in ad-
vance to a higher gear.
Manual transmission: shift up from first to
second gear as soon as possible. Choosing
the right gear enables fuel savings. Select the
highest possible gear appropriate for the
driving situation (the engine should continue
functioning with cyclical regularity).
Automatic transmission: accelerate gradu-
ally and without reaching the “kick-down”
position.
Avoid driving at high speed
Avoid travelling at your vehicle

Start and driving
Save electrical energy
The engine driv es the alt
ernator
, ther
eby
generating electricity. This implies that any
increase in power consumption also increa-
ses fuel consumption! For this reason, switch
off any unneeded electrical devices. Devices
that use a lot of electricity includes the blow-
er at a high setting, the rear window heating
or the seat heating*

Towing bracket device*
Pin Meaning
12 Unassigned
13 Earth for pin 9 Power socket for trailer
The vehicle is fitted with a 13-pol
e po
wer
socket for the connection between the trailer
and the vehicle. With the engine running,
electrical devices on the trailer receive power
from the electrical connection (pin 9 and pin
10 of the trailer power socket).
If the system detects that a trailer has been
connected, the consumers on the trailer will
receive electricity through this connection
(pins 9 and 10). Pin 9 has a permanent live.
This powers, for example, the trailer

Checking and refilling levels
Natural gas: “CNG” means Compr essed
N at ur
al
Gas.
Type of petrol  Valid for: vehicles with petrol engines
The correct grade of petr ol is list

ed inside the
fuel tank flap.
The vehicle is equipped with a catalytic con-
verter and must only be run on unleaded
petrol. The petrol must comply with the
standard EN 228 and be sulphur-free. Fuels
with a 10% ethanol ratio can be refuelled
(E10) 1)
. The types of petrol are differentiated
by using the octane numbers (RON) or via
the anti-knock index (AKI).
Super unleaded petrol 95 octane petrol or
normal 91 octane petrol at least
We recommend refuelling with super 95 oc-
tane petrol (91 AKI). If not available, normal 91
octane petrol (87 AKI) (with a slight power
loss) may be used.
Super unleaded petrol, 95 octanes at
least
You should use super 95 octane petrol (91
AKI) at least. 3 If super is not available, if necessary, use nor
-
mal 91 oct ane petrol (87 AKI). In this case only
use moder at

e engine speeds and a light
throttle. Refuel with super as soon as possi-
ble.
Unleaded super plus 98 octane petrol or
super 95 octane petrol at least
We recommend refuelling with super plus 98
octane petrol (93 AKI). If not available: super
95 octane petrol (91 AKI) (with a slight power
loss).
If super is not available, if necessary, use nor-
mal 91 octane petrol (87 AKI). In this case only
use moderate engine speeds and a light
throttle. Refuel with super as soon as possi-
ble. CAUTION

Practical tips
Ethanol fuel  Valid for: vehicles with Totalflex engines
You can recognise v ehicl
es with Totalflex en-
gines 1)
by label on the fuel tank lid with with
the marking “Petrol/ethanol”.
Vehicles with Totalflex engine can run with
unleaded petrol (95 octane / 91 AKI) accord-
ing to ANP No. 57 and with fuels with any high
percentage of ethanol. The vehicle is refuel-
led in the same way as petrol refuelling.
Also consider that

Practical tips
Control and warning lamps b
It lights up red
The engine cannot be restarted! The AdBlue level
is too l ow.
Stop the vehicle in a suitable, safe and flat area then
top up with the minimum required quantity of AdBlue

Practical tips

It lights up
Diesel engine preheating system.
The engine can be started straight aw ay when the
l
amp switches off. 
Flashes
Fault in the diesel engine management.
Have the engine checked as soon as possible by a
specialised w orkshop

.Note
While the control lamps , ;,  or  are
on, there might be faults in the engine, fuel consumption may go up and the engine
might l

ose power. Catalytic converter
To maintain the useful life of the catalytic
conv
er
ter

Checking and refilling levels
Regeneration of the petrol (except the TSI
2. 0l engine) and diesel par
ticulat
e filt
er
Requirements for the regeneration journey:
the engine is at operating temperature.