2019 Seat Leon coolant

Instruments and warning/control lamps
Engine coolant temperature indica-
t or Fig. 82
Analogue instrument panel: engine
cool ant t emper
atur
e indicator. Fig. 83
Digital instrument panel: engine cool-
ant t emper at
ure indicat

or.Cool zone. The engine has not r
eached
oper ating t emper
at

ure yet. Avoid high
speeds and stressing the engine if it has
not reached operating temperature.
A Normal zone. At high outside t
emper
a-
t ur
es and when making the engine w

ork
hard, the diodes may continue lighting up
and reach the upper zone. This is no
cause for concern, provided the control
lamp does not light up 
Warning area. When the engine is work-
ing hard, especially at high outside tem-
peratures, the diodes may light up in the
warning area.
The coolant temperature gauge only works
when the ignition is switched on.
Control and warning lamp 
It lights up red

Driving
approximately two minutes in neutral be-
fore swit
ching it off
.Note
After the engine is switched off the radiator
f an may run on for up to 10 minut es, e

ven 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 fr
om driving the v
ehicle
.
Inside the k

ey there is a chip that deactivates
the electronic immobiliser automatically
when the key is inserted into the ignition.
The electronic immobiliser will be activated
again automatically as soon as you pull the
key out of the ignition lock. For vehicles with
the “Keyless Access” system, the key has to
be 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. Emergency starting function
Fig. 256
On the right of the steering column:
emer gency st art. If no valid key is detected inside the vehicle,
an emer
gency st
art-up will be r
equir

ed. The
relevant message will appear in the dash
panel display. This may happen when, for ex-
ample, the vehicle key battery is very low:

Practical tips
Checking levels Fig. 316
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. Ne
v
er
fill with incorrect fluids, otherwise serious
damage to the engine may be caused.
Coolant expansion tank

Checking and refilling levels
Checking coolant level

Index
Clocks set the time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 80
Cl osing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 100
bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 332
panor
amic roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
114
Clutch (lamp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Coming Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 123
Communication between the Infotainment System and mobile devices . . . . . . . . . . . . . . . 179
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Full Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 179
SEAT Media Control . . . . . . . . . . . . . . . . . . . . . . . 185
WLAN access point . . . . . . . . . . . . . . . . . . . . . . . . 186
Connectivity Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 246
Control and warning lamps . . . . . . . . . . . . . . . . . . 89 adaptive cruise control . . . . . . . . . . . . . . . . . . . . 277
adBlue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 328
airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 25
airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
anti-lock brake system ABS . . . . . . . . . . . . . . . 296
ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296, 298
audible warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
braking system . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
cruise control (GRA) . . . . . . . . . . . . . . . . . . . . . . . 270
diesel preheating system . . . . . . . . . . . . . . . . . 329
EDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 296
electromechanical steering . . . . . . . . . . . . . . . 263
electronic parking brake . . . . . . . . . . . . . . . . . . 290
emissions control . . . . . . . . . . . . . . . . . . . . . . . . . 329
engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
engine management . . . . . . . . . . . . . . . . . . . . . . 329 engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 335
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296, 298
fuel reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
gear change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
261
Lane Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 284
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 118
particulate filter . . . . . . . . . . . . . . . . . . . . . . 329, 330
press on the brake . . . . . . . . . . . . . . . . . . . . 272, 277
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82, 322
replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
seat belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 15
Start-Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
steering column lock . . . . . . . . . . . . . . . . . . . . . . 263
tyre pressure loss indicator . . . . . . . . . . . . . . . . 352
Controls and displays overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Controls on the steering wheel . . . . . . . . . . . . . . . 95
Convenience close function windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
114
Convenience open function windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
114
Cooling system check the coolant . . . . . . . . . . . . . . . . . . . . . . . . 338
refilling coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 197 information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
173
Correct sitting position . . . . . . . . . . . . . . . . . . . . . . . . 12 driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 12
Cruise control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 control and warning lamp . . . . . . . . . . . . . . . . . 270
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 271
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 154 D
DAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 189 see: RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 191
Dangers of not using the seat belt . . . . . . . . . . . . 1
7
Data label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 372
Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Deactivation of cylinders see Active cylinder management (ACT) . . . . 72
Deactivation of the front airbag . . . . . . . . . . . . . . 25
Delayed shutdown (Infotainment system) . . . 169
Diesel engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 334
particulate filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
246
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 326
Display of road signs on the instrument panel activate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 78
deactivate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Disposal seat belt tensioners . . . . . . . . . . . . . . . . . . . . . . . . 20
Distance control see Adaptive Cruise Control . . . . . . . . . . . . . . 276
Door cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 110
Door handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Door lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . 110
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . 109 child lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 111
Downhill assistance function . . . . . . . . . . . . . . . . 260
Downhill assistant . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Drawers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 152
Drink holder bottle holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Driver see Correct sitting position . . . . . . . . . . . . . . . . . 12
381