2018 Seat Leon check engine

Table of Contents
Infotainment System . . . . . . . . . . . . . . . . . . 182
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Safety warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Overview of the unit . . . . . . . . . . . . . . . . . . . . . . . . 184
General instructions for use . . . . . . . . . . . . . . . . 186
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Full Link* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 191
SEAT Media Control* . . . . . . . . . . . . . . . . . . . . . . . 198
WLAN access point* . . . . . . . . . . . . . . . . . . . . . . . . 199
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . 201
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 201
Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 203
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 212
Navigation in Offroad mode* . . . . . . . . . . . . . . . 223
Vehicle Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 226
Multimedia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 233
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235Start and driving . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Starting and stopping the engine . . . . . . . . . . . 235
Braking and parking . . . . . . . . . . . . . . . . . . . . . . . . 240
Braking and stability systems . . . . . . . . . . . . . . . 245
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Automatic gearbox/DSG automatic gear-
bo x* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
2
49
Gear-change recommendation . . . . . . . . . . . . 257
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 257
Run-in and economical driving . . . . . . . . . . . . . 258
Power management . . . . . . . . . . . . . . . . . . . . . . . 261
Engine management and emission control
system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 262
Driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . .

264Driver assistance systems . . . . . . . . . . . . . . . . 265
Start-Stop system* . . . . . . . . . . . . . . . . . . . . . . . . . 265
Auto Hold Function* . . . . . . . . . . . . . . . . . . . . . . . . 268
Cruise control system (CCS)* . . . . . . . . . . . . . . 269
Emergency braking assistance system
(Front Assist)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 27

1
Adaptive Cruise Control ACC* . . . . . . . . . . . . . 275
Lane Assist system* . . . . . . . . . . . . . . . . . . . . . . . . 284
Traffic Jam Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
SEAT Drive Profile* . . . . . . . . . . . . . . . . . . . . . . . . . 289
Parking aid parking and manoeuvring
(ParkPilot) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
292
Parking System Plus* . . . . . . . . . . . . . . . . . . . . . . . 294
Rear parking aid* . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Rear Assist “Rear View Camera”* . . . . . . . . . . 298
Towing bracket device . . . . . . . . . . . . . . . . . . . . 301
Towing bracket device* . . . . . . . . . . . . . . . . . . . . 301
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Practical tips . . . . . . . . . . . . . . . . . . . . . . . . . . . 313 Care and maintenance . . . . . . . . . . . . . . . . . . . 313
Accessories and modifications to the vehi-
cle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . 313
Checking and r

efilling levels . . . . . . . . . . . . . 314
Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 317
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Operation
Inspection of compressed natural gas
t anks (CNG) r
eminder
When l
ess than 90 days for the review of the
compressed natural gas tanks (CNG), when
the ignition is switched on, the instrument
panel display will a reminder for review of
the gas tanks and an audible warning will be
emitted.
As approaches the service date of inspection
of the gas tanks, the message and the audi-
ble warning will stop modify accordingly.
Check a service warning
With the ignition switched on, the engine off
and the vehicle at a standstill, the current
service notification can be read:
Check the date of the current service on the
infotainment system

Driving
Foresight when driving
Accel er
ation causes the v
ehicle to consume
more fuel. If you think ahead when driving,
you will need to brake less and thus acceler-
ate less. Wherever possible, let the car roll
slowly to a stop, with a gear engaged (for in-
stance when you can see that the next traffic
lights are red). This takes advantage of the
engine braking effect, reducing wear on the
brakes and tyres. Emissions and fuel con-
sumption will drop to zero due to the overrun
fuel cut-off.
Changing gear to save energy
An effective way of saving is to change in ad-
vance to a higher gear. Running the engine at
high rpm in the lower gears uses an unneces-
sary amount of fuel.
Manual transmission: shift up from first to
second gear as soon as possible. In any case,
we recommend that you change to a higher
gear upon reaching 2,000 rpm. 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 trav
elling at top speed, whenever pos-
sible. Fuel consumption, emission of harmful
gases and noise pollution multiply dispropor-
tionately as speed is increased. Driving at
moderate speeds will help to save fuel.
Reduce idling time
In vehicles with the Start-Stop system idling is
automatically reduced. In vehicles without
the Start-Stop system it is worth switching off
the engine, for example, at level crossings
and at traffic lights that remain red for long
periods of time. When an engine has reached
operating temperature, and depending on
the cylinder capacity, keeping it switched off
for a minimum of about 5 seconds already
saves more than the amount of fuel necessa-
ry for restarting.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high during
this initial warm-up phase. It is therefore best
to drive off immediately after starting the en-
gine. Avoid running the engine at high speed.
Regular maintenance
Regular servicing helps in saving fuel even
before the engine is started. A well-serviced
engine gives you the benefit of improved fuel
efficiency as well as maximum reliability and
an enhanced resale value. A badly serviced engine can consume up to 10% more fuel
than necessary.
Avoid short journeys
The engine and cat
alytic converter need to
reach their optimal operating temperature
in order to minimise fuel consumption and
emissions.
A cold engine consumes a disproportionate
amount of fuel. The engine reaches its work-
ing temperature after about four kilometres
(2.5 miles), when fuel consumption will return
to a normal level.
Check tyre pressure
Always make sure the tyres are inflated to the
correct pressures

Checking and refilling levels
Fuel Identification of the fuel 1)Fig. 306
Identification of fuels according to
Eur opean Union (EU) Dir
ectiv
e 2014/94/Fuels are identified with different symbols.
Depending on the fuel, the diff
er
ent symbol

s
are on the pump and the tank lid of your vehi-
cle. The identification serves to prevent con-
fusion when choosing the fuel.
Petrol with ethanol (“E” stands for Etha-
nol). The number indicates the percent-
age of ethanol in the petrol. “E5” means,
for example, an ethanol ratio of 5% max.
Diesel with biodiesel (“B” stands for Bio-
diesel). The number indicates the per-
1 2 centage of biodiesel in the diesel. “B7”
means, f
or e
x

ample, a proportion of bio-
diesel of max. 7%.
Natural gas: “CNG” means Compressed
Natural Gas.
Type of petrol  Applies to vehicles: with petrol engine
The corr ect gr

ade of petrol is listed 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) 2)
. The types of petrol are differentiated
by using the octane numbers (RON) or via
the anti-knock index (AKI).
The following pieces of text show the infor-
mation included in the corresponding stickers
on the tank lid (examples): 3 Super unleaded petrol 95 octane petrol or
normal 91 oct
ane petr
ol at l

east
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).
Super unleaded petrol, 95 octanes at
least
You should use super 95 octane petrol (91
AKI) at least.
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.
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

Practical tips
Checking levels Fig. 309
Diagram for the location of the various el-
ements. From time to time, the levels of the different
fluids in the v
ehicl
e must be check
ed. Never
fill with incorrect fluids, otherwise serious
damage to the engine may be caused.
Coolant expansion tank
Engine oil dipstick
Engine oil filler cap
Brake fluid reservoir
Vehicle battery (underneath the cover)
Windscreen washer reservoir
The checking and refilling of service fluids are
carried out on the components mentioned 1 2
3
4
5
6 above. These operations are described in

Checking and refilling levels
If the recommended engine oil is not availa-
bl e
, in the e
vent of an emergency you can
add oil once up to a maximum of 0.5 L of the
next oil until the next oil change:

Practical tips
Depending on how you drive and the condi-
tions in which the v ehicl
e is used, oil con-
sumption can be up t
o 0.5 l/1000 km. Oil
consumption is likely to be higher for the first
5,000 km. For this reason the engine oil level
must be checked at regular intervals, prefera-
bly when filling the tank and before a journey. WARNING
Any work carried out in the engine com-
partment or on the engine must be carried out cautiously.

Checking and refilling levels
The oil change intervals are shown in the
Maint enance Pr
ogr
amme.WARNING
Only change the engine oil yourself if you
have the specialist kno wl

edge required!