2014 Seat Leon 5D engine coolant

The essentials
Front brake pads worn.
›››
page
143 
it lights up:
Fault in the ESC, or dis-
connection caused by the system.
flashes: ESC or ASR activated. 
ASR manually deactivated.

ABS faulty or does not work.

Rear fog light switched on.›››
page
94 
lights up or flashes:
fault in the
emission control system.– 
it lights up:
pre-ignition of diesel
engine.
››› page
71
flashes: fault in the diesel engine
management. 
fault in the petrol engine manage-
ment.›››
page
71 
lights up or flashes:
fault in the
steering system.››› page
190 
Tyre pressure too low, or fault in
the tyre pressure monitoring sys-
tem.›››
page
212 
Fuel tank almost empty.›››
page
66 
Fault in airbag system and seat
belt tensioners.›››
page
48 
Lane Assist is switched on, but not
active.›››
page
166 Other warning lamps

Left or right turn signal.›››
page
94
Hazard warning lights on.››› page
99 
Trailer turn signals›››
page
177 
it lights up:
Press the foot brake!
flashes: the selector lever locking
button has not engaged.››› page
132 
it lights up:
cruise control activated
or speed limiter switched on and
active.
››› page
150
flashes: the speed set by the
speed limiter has been exceeded. 
Lane Assist is switched on and ac-
tive.›››
page
166 
Main beam on or flasher on.›››
page
94 On the instrument panel screen
Fig. 35
See Fig. 3 for positioning   Do not continue driving!
With the corresponding indica-
tion: door(s), rear lid or bonnet
open or not properly closed.››› page
82
››› page
89
››› page
198 
Ignition:  Do not carry on driv-
ing! Engine coolant level too low,
coolant temperature too high
››› page
203
Flashing: Fault in the engine
coolant system.  
Do not continue driving!
Engine oil pressure too low.››› page
200» 23
Technical specifications
Advice
Operation
Safety
The essentials

The essentials
Coolant Fig. 45
The coolant tank is located in the engine
compartment
›››
 page 198
.
When the en gine i
s cold, replace the coolant
when the level is below .

››› in Engine coolant specifications on
page 203
››› page 203 Brake fluid
Fig. 46
The brake fluid reservoir is located in the en-
gine compartment
›››
 page 198.
The level should be between the  and 
marks. If it is below , please visit a Techni-
cal Service.

››› in Topping up the brake fluid on
page 204
››› page 204 Windscreen washer
Fig. 47
The windscreen washer reservoir is located in
the engine compartment
›››
 page 198.
To top up, mix water with a product recom-
mended by SEAT.
In cold temperatures, add anti-freeze.

››› in Checking and topping up the
windscreen washer reservoir with water
on page 205
››› page 204 32

Operation
Instruments and warning/control lamps
Instruments View of instrument panel Fig. 82
Instrument panel, on dash panel Details of the instruments
››› Fig. 82 :
R ev
counter (with the engine running, in
hundreds of revolutions per minute).
The beginning of the red zone of the rev
counter indicates the maximum speed in
any gear after running-in and with the en-
gine hot. However, it is advisable to
change up a gear or move the selector
lever to
D (or lift your foot off the acceler-
1 ator) before the needle reaches the red
zone
››› .
Engine coolant temperature display
››› page 69 or
the natural gas level indi-
c

ator in vehicles with natural gas engine
(CNG) ››› page 70.
Displays on the screen ››› page 67.
Adjuster button and display
››› page 69.
2
3
4 Speedometer
.
F uel

gauge ››› page 70
. WARNING
Any distraction may lead to an accident, with
the risk of injury.
● Do not operate the instrument panel con-
trols when driving. 5
6
66

Instruments and warning/control lamps
Low consumption driving status (ECO)*
Depending on the equipment, when driving,
the “ ECO” display appears on the instrument
p anel
when the vehicle is in low consump-
tion status due to active cylinder manage-
ment (ACT ®
)* ››› page 142.
Identify

ing letters on engine (MKB)
Hold the button ››› Fig. 82
4 down for more
than 15 seconds to display the identifying
letters of the vehicle engine (MKB). To do
this, the ignition must be switched on and
the engine switched off. WARNING
Observe the safety warnings ››› in Control
and warning lamps on page 71. WARNING
Even though outside temperatures are above
freezing, some roads and bridges may be icy.
● At outside temperatures above +4°C
(+39°F), even when the “ice crystal symbol”
is not visible, there may still be patches of ice
on the road.
● Never rely on the outside temperature indi-
cator! Note
● Different versions of the instrument panel
are available and therefore the versions and instructions on the display may vary. In the
case of displays without warning or informa-
tion texts, faults are indicated exclusively by
the warning lamps.
● Depending on the equipment, some set-
tings and instructions can also be carried out
in the Easy Connect system.
● When several warnings are active at the
same time, the symbols are shown succes-
sively for a few seconds and will stay on until
the fault is rectified. Trip recorder
Fig. 84
Instrument panel: odometer and reset
button. The distance covered is displayed in “kilome-
tres” or miles “m”. It is possible to change
the measurement units (kilometres
“km”/miles “m”) in the radio/Easy Connect*.
Please refer to the Easy Connect* Instructions
Manual for more details.Odometer/trip recorder
The odometer shows the total distance cov-
ered by the vehicle.
The trip recorder shows the distance that has
been travelled since it was last reset. It is
used to measure short trips. The last digit of
the trip recorder indicates distances of 100
metres or tenths of a mile.
The trip recorder can be set to zero by press-
ing
0.0/SET
››› Fig. 84 .
F au

lt display
If there is a fault in the instrument panel, the
letters DEF will appear in the trip recorder dis-
play. Have the fault repaired immediately, as
far as is possible.
Coolant temperature gauge For vehicles with no coolant temperature
gauge, a control lamp 
appears for high
coolant temperatures ›››
page 203. Please
note ››› .
The coolant temperature gauge 2
›››
Fig. 82
only works when the ignition is switched on.
In order to avoid engine damage, please read
the following notes for the different tempera-
ture ranges. »
69
Technical specifications
Advice
Operation
Safety
The essentials

Operation
Engine cold
If only the diodes in the lower part of the
scale light up, this indicates that the engine
has not yet reached operating temperature.
Avoid high revs and heavy acceleration and
do not make the engine work hard.
Normal temperature
If in normal operations, the diodes light up
until the central zone, it means that the en-
gine has reached operating temperature. At
high outside temperatures and when making
the engine work hard, the diodes may contin-
ue lighting up and reach the upper zone. This
is no cause for concern, provided the control
lamp  does not light up on the instrument
panel digital display.
Heat range
When the diodes light up in the upper area of
the display and the control lamp appears 
on the instrument panel display, the coolant
temperature is excessive ››› page 203. CAUTION
● To ensure a long useful life for the engine,
avoid high revs, driving at high speed and
making the engine work hard for approxi-
mately the first 15 minutes when the engine
is cold. The phase until the engine is warm al-
so depends on the outside temperature. If
necessary, use the engine oil temperature*
››› page 77 as a guide. ●
Additional lights and other accessories in
front of the air inlet reduce the cooling effect
of the coolant. At high outside temperatures
and high engine loads, there is a risk of the
engine overheating.
● The front spoiler also ensures proper distri-
bution of the cooling air when the vehicle is
moving. If the spoiler is damaged this can re-
duce the cooling effect, which could cause
the engine to overheat. Seek specialist assis-
tance. Fuel level - Gas
Fig. 85
Fuel gauge. Displays
2 and
6
››› Fig. 82 only work when
the ignition i s
switched on. When the display
reaches the reserve mark, the lower diode
lights up in red and the control lamp  ap-
pears ››› page 66. When the fuel level is very
low

, the lower diode flashes in red. The yellow control lamp 
lights up when the
reserve level has been reached.
The green warning lamp 
lights up when the
vehicle is running in natural gas operating
mode.
The green warning lamp 
switches off when
the natural gas is exhausted. The engine
changes to operate with petrol.
Problem:
If the vehicle is left parked for a
long time immediately after refuelling, the
natural gas level indicator may not accurately
indicate the same level shown after refuelling
when the vehicle is started up again. This is
not due to a leak in the system, but to a drop
in pressure in the gas tank for technical rea-
sons after a cooling phase just after refuel-
ling.
Fuel level - Petrol/Diesel Fig. 86
Fuel gauge.70

Driver information systemMenuFunction
Operating
range
a)
Approximate distance in km that can
still be travelled with the fuel remain-
ing in the tank, assuming the same
style of driving is maintained. This is
calculated using the current fuel con-
sumption.
Journey dura-
tionThis indicates the hours (h) and mi-
nutes (min) since the ignition was
switched on.
Distance cov-
eredDistance covered in km (m) after
switching on the ignition.
CNG quality
Whenever you refuel the quality of the
natural gas is automatically verified
and is displayed when the ignition is
switched on. The display is made in a
percentage of between 70% and
100%. The greater the percentage dis-
played the lower the consumption may
be.
Average speed
The average speed will be shown after
a distance of about 100 metres has
been travelled. Otherwise horizontal
lines are displayed. The value shown is
updated approximately every 5 sec-
onds.
Digital display
of speedCurrent speed displayed in digital for-
mat.
Speed warn-
ing at --- km/h
or Speed warning at ---
mphIf the stored speed is exceeded (be-
tween 30 - 250 km/h, or 19 -
155 mph), an audible warning is given
together with a visual warning.
MenuFunction
Oil tempera-
tureUpdated engine oil temperature digital
display
Coolant tem-
perature
gaugeDigital display of the current tempera-
ture of the liquid coolant.
a) In vehicles with a natural gas engine, range and average con-
sumption refer only to data or natural gas consumption. If you
are in “petrol mode”, the information of both data only appears
on the dash panel and not on the multifunction screen.
Storing a speed for the speed warning
● Select the display Speed warning at --- km/h
(--- mph)
● Press the button  on the windscreen
wiper lever or the button  on the multifunc-
tion steering wheel to store the current speed
and activate the warning.
● If necessary, adjust the desired speed with-
in 5 seconds using the rocker switch  on
the windscreen wiper lever or by turning the
thumbwheel on the multifunction steering
wheel. Next, press the button  or
 again or wait several seconds. The speed is
stored and the warning activated.
● To deactivate it press the button 

 or
the button  . The stored speed is deleted.Engine oil temperature display Vehicles without multifunction steering
wheel
– To view the temperature, press the rocker
button ››› Fig. 87 2 until the main menu
comes up. Enter into Journey data. With the
button 2 move to the oil temperature
gauge.
Vehicles with multifunction steering wheel
– To display the engine oil temperature, enter
the submenu Journey data and turn the
thumbwheel until the oil temperature dis-
play appears.
The engine reaches its operating temperature
when in normal driving conditions, the oil
temperature is between 80°C (180°F)
and
120°C (250°F) . If the engine is required to
work hard and the outside temperature is
high, the engine oil temperature can in-
crease. This does not present any problems
as long as the warning lamps  ›››
 ta-
ble on page 23 or  ››
›
 table on page 23
do not appear on the display.
Additional electrical appliances 3 Not available in vehicles equipped with natural
gas engine (CNG).
– Operation with the windscreen wiper lev-
er*: Press the rocker switch ›››
Fig. 87 2 »
77
Technical specifications
Advice
Operation
Safety
The essentials

Air conditioning
● The air conditioner compressor has been
temporarily switched off because the engine
coolant temperature is too high.
● Another fault in the vehicle. Have the air
conditioner checked by a specialised work-
shop. Special Characteristics
If the humidity and temperature outside the
vehicle are high,
condensation
can drip off
the ev
aporator in the cooling system and
form a pool underneath the vehicle. This is
normal and does not indicate a leak! Note
After starting the engine, any residual humid-
ity in the air conditioner could mist over the
windscreen. Switch on the defrost function as
soon as possible to clear the windscreen of
condensation. Air vents
Fig. 140
On the dash panel: air vents Air vents
To ensure proper heating, cooling and venti-
lation in the vehicle interior, air vents
››› Fig. 140 1 should remain open.
● Turn the corresponding thumbwheel (de-
tail) in the required direction to open and
close the air vents. When the thumbwheel is in the

position, the corresponding air vent
i

s closed.
● Change the air direction using the ventila-
tion grille lever.
There are other additional, non-adjustable air
vents in the dash panel 2 , in the footwell
and in the rear area of the interior. Note
Food, medicine and other heat or cold sensi-
tive objects should never be placed in front of
the air outlets as they may be damaged or
made unsuitable for use by the air coming
from the air vents. 127
Technical specifications
Advice
Operation
Safety
The essentials

Driving
Driving Ignition lock Switching on the ignition and starting
the engine with the key Fig. 141
Ignition key positions. Read the additional information carefully
›››  page 14
Diesel engines can take a few seconds longer
than usual to start on cold days. Therefore
the clutch pedal (manual gearbox) or the
brake pedal (automatic gearbox) must re-
main pressed until the engine starts up. Dur-
ing preheating, the warning lamp  remains
lit.
The preheating time depends on the coolant
and exterior temperatures. With the engine at
operating temperature, or at outside temper-
atures above +8°C, the warning lamp  will light up for about one second. This means
that the engine starts
immediately.
If the engine does not immediately start up,
interrupt the starting process and try again
after 30 seconds. To start the engine again,
return the key to position 1 .
Start-Stop System*
If the vehicle is stopped and the Start-Stop
system* switches off the engine, the ignition
remains switched on.
Automatic gearbox: before leaving the vehi-
cle, make sure that the ignition is switched
off and the selector lever is in position P.
Driv er me
ssages on the instrument panel
display
Press the clutch
This message appears on vehicles with a
manual gearbox if the driver tries to start the
engine without having the clutch pedal
pressed. The engine will only start if you
press the clutch pedal.
Press the brake
This message appears on vehicles with an
automatic gearbox if the driver tries to start
the engine without having the brake pedal
pressed. Select N or P
This message appears if you try to start or
stop the engine when the selector lever of
the automatic gearbox is not in position P or
N. The engine can only start or stop in certain
po
sitions.
Engage position P; the vehicle can move; doors
can only close in position P.
For safety reasons, this driver message ap-
pears and an audible warning sounds if the
selector lever of the automatic gearbox is not
in position P after you switch off the ignition.
P

ut the selector lever in position P, otherwise
the vehicle could roll away.
Gear change: selector lever in the drive
position! This driver message is displayed when the
selector lever is not in the position P when
the driver door i

s opened. Additionally, a
buzzer will sound. Put the selector lever in
position
P, otherwise the vehicle could roll
away.
Ignition is switched on
This driver message is displayed and a buz-
zer is sounded when the driver door is
opened with the ignition switched on. »
129
Technical specifications
Advice
Operation
Safety
The essentials