Seat Leon. Service Manual - part 3

to . The system is on. If no

speed has been programmed, the system will
not control it.

●

Activating the CCS: Press button

›››

in the  area. The current speed is

memorised and controlled.

●

Temporarily switching off the CCS: Move

switch

›››

to  or push the

brake. The cruise control system is switched
off temporarily.

●

Reactivating the CCS: Press button

›››

in . The memorised speed

is saved and controlled again.

●

Increasing stored speed during CCS regula-

tion: press button

in . The vehicle ac-

celerates until the new stored speed.

●

Reducing stored speed during CCS regula-

tion: press button

in  to lower the

speed by 1 km/h (1 mph). Speed is reduced
until reaching the new stored speed.

●

Switching off the CCS: Move switch

›››

to . The system is disconnec-

ted and the memorised speed is deleted.

Operation using the third lever

●

Switching on the CCS: move the third lever

to 

›››

. The system switches on but it

does not control the speed as no speed has
been programmed.

●

Activating the CCS: press the 

›››

button. It memorises and maintains the cur-
rent speed.

●

Temporarily switching off the CCS: move

the lever to 

›››

and release it or

press the brake pedal. The cruise control sys-
tem is switched off temporarily.

●

Reactivating the CCS: move the lever to



›››

and release it. The memo-

rised speed is saved and controlled again.

●

Switching off the CCS: move the third lever

to position 

›››

in Operation on page 196

. The system is dis-

connected and the memorised speed is de-
leted.



›››



›››

page 195

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The essentials

Warning lamps

On the instrument panel

Fig. 49

Instrument panel, on dash panel

Red warning lamps



Central warning lamp: additional
information on the instrument pan-
el display

–



Parking brake on.

›››

›››





Do not continue driving!

The brake fluid level is too low or
there is a fault in the brake system.



Lit up or flashing:



Do not continue driving!

Fault in the steering.

›››

253



Driver or passenger has not fas-
tened seat belt.

›››



Use the foot brake!

Yellow warning lamps



Central warning lamp: additional
information on the instrument pan-
el display

–

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials



Front brake pads worn.

›››

176



it lights up: Fault in the ESC, or dis-
connection caused by the system.

flashes: ESC or ASR activated.



ASR manually deactivated.

ESC in Sport mode or OFF



ABS faulty or does not work.



Rear fog light switched on.

›››



lights up or flashes: fault in the
emission control system.

›››

189



it lights up: pre-heating of diesel
engine.

›››

190

flashes: fault in the diesel engine
management.



fault in the petrol engine manage-
ment.

›››

190



lights up or flashes: fault in the
steering system.

›››

253



Tyre pressure too low, or fault in
the tyre pressure monitoring sys-
tem.

›››

275



Fuel tank almost empty.

›››

104



Fault in airbag system and seat
belt tensioners.

›››



Lane Assist is switched on, but not
active.

›››

213

Other warning lamps



Left or right turn signal.

›››

Hazard warning lights on.

›››

135



Trailer turn signals

›››

234



it lights up: Press the foot brake!
flashes: the selector lever locking
button has not engaged.

›››

180



it lights up: cruise control activated
or speed limiter switched on and
active.

›››

195

flashes: the speed set by the
speed limiter has been exceeded.



green warning lamp: Lane Assist is
switched on and active.

›››

213



Main beam on or flasher on.

›››



Natural gas operating mode

›››

108

On the instrument panel display

Fig. 50

On the instrument panel display: door

open.





Do not continue driving!

With the corresponding indica-
tion: door(s), rear lid or bonnet
open or not properly closed.

›››

›››

›››



Ignition:



Do not carry on driv-

ing! Engine coolant level too low,
coolant temperature too high

›››

266

Flashing: Fault in the engine
coolant system.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials





Do not continue driving!

Engine oil pressure too low. If
the warning lamp flashes, stop
driving, even if the oil level is
correct. Do not even run the en-
gine at idle speed!

›››

264



Fault in the battery.

›››

269



Driving light totally or partially
faulty.

›››

Fault in the cornering light sys-
tem.

›››



Diesel particulate filter blocked

›››

190



Level of windscreen washer fluid
too low.

›››

139



Flashing: Fault in the oil level de-
tection. Control manually.

›››

264

Ignition: Insufficient engine oil.



Fault in the gearbox.

›››

187



Light Assist on.

›››

132



Immobiliser active.



Service interval display

›››



Mobile telephone is connected
via Bluetooth to the original tele-
phone device.

›››

Book-

let Radio

›››

Book-

let Navi-
gation
system



Mobile telephone battery charge
meter. Available only for devices
pre-installed in factory.



Freezing warning. The outside
temperature is lower than +4°C
(+39°F).

›››



Start-Stop system activated.

›››

191



Start-Stop system unavailable.



Low consumption driving status

›››

On the instrument panel

Fig. 51

Warning lamp for disabling the front

passenger airbag.





Front passenger front airbag is
disabled (  


).

›››





The front passenger front airbag
is activated (  


).

›››

in Warning and control lamps on



›››

page 109



›››

page 109

Gearbox lever

Manual gearbox

Fig. 52

Gear shift pattern of a 5 or 6-speed

manual gearbox

The position of the gears is indicated on the
gearbox lever

›››

Fig. 52

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

●

Press the clutch pedal and keep your foot

right down.

●

Move the gearbox lever to the required po-

sition.

●

Release the clutch.

Selecting reverse gear

●

Press the clutch pedal and keep your foot

right down.

●

With the gearbox lever in neutral, push it

upwards, move it to the left as far as it will go
and then forwards to select reverse

›››

Fig. 52

●

Release the clutch.



›››

in Changing gear on page 179



›››

page 179

Automatic gearbox*

Fig. 53

Automatic gearbox: selector lever po-

sitions.

Parking lock
Reverse gear
Neutral (idling)
Drive (forward)
Tiptronic mode: pull the lever forwards
(

+) to go up a gear or backwards (–) to

go down a gear.



›››

in Selector lever positions on

page 181



›››

page 180



›››

page 43

P
R
N
D/S
+/–

Manual release of the selector lever

Fig. 54

Selector lever: manual release from

position P.

Should the power supply be interrupted,
there is a manual unlocking device located
under the console of the selector lever, on
the right. Releasing the selector lever re-
quires a certain degree of practical skill.

●

Unlocking: use the flat part of a screwdriver

blade.

Removing the cover from the selector lever

●

Apply the handbrake 

›››

to ensure that

the car does not move.

●

Carefully pull the corners of the selector

lever boot and twist it upwards above the lev-
er handle.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

Releasing the selector lever

●

Using a screwdriver, press and hold the yel-

low unlocking tab sideways

›››

Fig. 54

●

Now press the interlock button on the se-

lector lever

and move the selector lever to

position

●

After carrying out the manual release, at-

tach the selector lever boot on the gearbox
console again.

If the power supply should ever fail (e.g. dis-
charged battery) and the vehicle has to be
pushed or towed, the selector lever must first
be moved to position

N, after operating the

manual release mechanism.

WARNING

The selector lever may be moved out of posi-
tion P only when the handbrake is firmly ap-
plied. If this does not work, secure the vehi-
cle with the brake pedal. On a slope the vehi-

cle could otherwise start to move inadver-
tently after shifting the selector lever out of
position P - accident risk!

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

Air conditioning

How does Climatronic* work?

Fig. 55

In the centre console: Climatronic con-

trols

To switch a specific function on, press the ap-
propriate button. Press the button again to
switch off the function.

The LED on each control lights up to indicate
that the respective function of a control has
been switched on.

Temperature

The left and right sides can be adjusted separately: Turn the control to adjust the temperature

Fan

The power of the fan is automatically adjusted. The fan is also adjusted manually by turning the control.

Air distribution

The airflow adjusts automatically for comfort. You can also switch it on manually using the buttons

Indications on the temperature display screen selected for the right and left sides.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials





Defrost function

The air drawn in from outside the vehicle is directed at the windscreen and air recirculation is automatically switched off. To defrost the wind-
screen more quickly, the air is dehumidified at temperatures over approximately +3°C (+38°F) and the fan runs at maximum output.



The air is directed at the chest of driver and passengers by the dash panel air vents.



Air distribution towards the footwell.



Upward air distribution.



Heated rear window: this only works when the engine is running and switches off automatically after a maximum of 10 minutes.



Air recirculation





Seat heating buttons



Press the button to switch on or off the cooling system.





Press the button to make maximum cooling capacity available. The recirculation of air and the cooling system turn on automatically and air distri-
bution adjusts automatically to the position .



When the warning light for button  lights up, the settings on the driver side also apply to the passenger side. Press the button or the temper-
ature control on the passenger side



Automatic adjustment of temperature, fan, and air distribution. Press the button: the warning lamp on the button will light up .



Press the configuration button : the air conditioning operation menu will be displayed on the Easy Connect system screen.

Switching off

Turn the blower control to the  position or press the  button.



›››

in Introduction on page 163



›››

page 163

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

How does the manual air conditioning work*?

Fig. 56

In the centre console: Manual air condi-

tioning controls

To switch a specific function on, press the ap-
propriate button. Press the button again to
switch off the function.

The LED on each control lights up to indicate
that the respective function of a control has
been switched on.

Temperature

Turn the control to adjust the temperature

Fan

Setting 0: blower and manual air conditioning switched off
Level 6: maximum fan level.

Air distribution

Rotate the continuous control to direct the airflow to the desired area.



Defrost function

The airflow is directed at the windscreen. Air recirculation is automatically switched off or is not switched on. Increase the fan power to clear the
windscreen of condensation as soon as possible. To dehumidify the air, the cooling system will automatically switch on.



The air is directed at the chest of driver and passengers by the dash panel air vents.



Distribution of air towards the chest and the footwell area.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials



Air distribution towards the footwell.



Air distribution towards the windscreen and the footwell.



Heated rear window: this only works when the engine is running and switches off automatically after a maximum of 10 minutes.



Air recirculation





Seat heating buttons





Maximum cooling power. The recirculation of air and the cooling system turn on automatically and air distribution adjusts automatically to the
position 



›››

in Introduction on page 163



›››

page 163

How does the heating and the fresh air system work?

Fig. 57

In the centre console: heating system and

fresh air controls.

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

To switch a specific function on, press the ap-
propriate button. Press the button again to
switch off the function.

The LED on each control lights up to indicate
that the respective function of a control has
been switched on.

Temperature

Turn the control to adjust the temperature. The temperature cannot be lower than that of the exterior air temperature, as this system cannot cool
or dehumidify the air

Fan

Setting 0: blower, heating and fresh air systems switched off
Level 6: maximum fan level

Air distribution

Rotate the continuous control to direct the airflow to the desired area.



Defrost function

The airflow is directed at the windscreen.



The air is directed at the chest of driver and passengers by the dash panel air vents.



Distribution of air towards the chest and the footwell area.



Air distribution towards the footwell.



Air distribution towards the windscreen and the footwell.



Heated rear window: this only works when the engine is running and switches off automatically after a maximum of 10 minutes



Air recirculation

›››

page 166





Seat heating buttons



›››

in Introduction on page 163



›››

page 163

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

Fluid Level control

Filling capacities

Tank level

Petrol and diesel
engines

50 l, of which, approx. 7 l reserve

Vehicles with all-wheel-drive:

55 l, of which, approx. 8.5 l re-

serve

Natural gas en-
gine

approx. 15 kg

The capacity depends on the efficacy and characteristics of

the natural gas pumps. The capacity indicated is based on a
minimum loading pressure of 200 bar.

Capacity of the windscreen washer fluid container

Versions without
headlight washer
system

approx. 3 litres

Versions with
headlight washer
system

approx. 5 litres

Fuel

Fig. 58

Fuel tank flap with tank cap attached.

The flap that covers the tank cap is unlocked
and locked automatically using the central
locking.

Opening the fuel tank cap

●

Open the fuel tank flap by pressing on the

left side.

●

Unscrew the cap by turning it to the left.

●

Place it in the space on the hinge of the

open flap

›››

Fig. 58

Closing the fuel tank cap

●

Unscrew the cap by turning it to the right as

far as it will go.

●

Close the lid.



›››

in Filling up on page 257



›››

page 256

Oil

Fig. 59

Engine oil dipstick.

Fig. 60

In the engine compartment: Engine

oil filler cap

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

The level is measured using the dipstick loca-
ted in the engine compartment

›››



in Changing engine oil on page 266

The oil should leave a mark between zones

and

. It should never exceed zone

●

Zone

: Do not add oil.

●

Zone

: You can add oil but keep the level

in that zone.

●

Zone

: Add oil up to zone

Topping up engine oil

●

Unscrew cap from oil filler opening.

●

Add oil slowly.

●

At the same time, check the level to ensure

you do not add too much.

●

When the oil level reaches at least zone

unscrew the engine oil filler cap carefully.

Oil properties

Engine type

Specification

Petrol without flexible
service interval

VW 502 00/VW 504 00

Petrol with flexible serv-
ice interval (LongLife)

VW 504 00

Diesel. Engines without
Particulate filter (DPF)

VW 505 01/VW 506 01/VW
507 00

Engine type

Specification

Diesel. Particulate Filter
Engines (DPF).
With or without flexible
service interval (with
and without LongLife)

VW 507 00

Natural gas engines

VW 502 00

Only use recommended oils, otherwise you may damage the

engine.

Engine oil additives
No type of additive should be mixed with the
engine oil. The deterioration caused by these
additives is not covered by the warranty.



›››



›››

page 264

Coolant

Fig. 61

Engine compartment: coolant expan-

sion tank cap.

The coolant tank is located in the engine
compartment

›››



up coolant on page 267

When the engine is cold, replace the coolant
when the level is below .

Coolant specifications
The engine cooling system is supplied from
the factory with a specially treated mixture of
water and at least 40 % of the additive

G13

(TL-VW 774 J), purple. This mixture gives the
necessary frost protection down to -25°C
(-13°F) and protects the light alloy parts of
the engine cooling system against corrosion.
It also prevents scaling and considerably rai-
ses the boiling point of the coolant.

To protect the cooling system, the percentage
of additive must always be at least 40 %,

-------------------------------------------------------------------------------------------------------------------------------------------------------------

The essentials

even in warm climates where anti-freeze pro-
tection is not required.

If for weather reasons further protection is
necessary, the proportion of additive may be
increased, but only up to 60 %; otherwise an-
tifreeze protection will diminish and this will
worsen cooling.

When the coolant is topped up, use a mixture
of

distilled water and at least 40 % of the

G13 or G12 plus-plus (TL-VW 774 G) additive
(both are purple) to obtain an optimum anti-
corrosion protection

›››

in Topping up cool-

ant on page 267

. The mixture of G13 with

G12 plus (TL-VW 774 F), G12 (red) or G11
(green-blue) engine coolants will significant-
ly reduce anti-corrosion protection and
should therefore be avoided

›››

in Topping



›››

in Topping up coolant on page 267



›››

page 266

Brake fluid

Fig. 62

Engine compartment: brake fluid res-

ervoir cap

The brake fluid reservoir is located in the en-
gine compartment

›››



in Topping up brake fluid on

The level should be between the  and 
marks. If it is below , please visit a Techni-
cal Service.



›››

page 268



›››

page 267

Windscreen washer

Fig. 63

In the engine compartment: wind-

screen washer reservoir top.

The windscreen washer reservoir is located in
the engine compartment

›››



in Checking and topping up the

To top up, mix water with a product recom-
mended by SEAT.

In cold temperatures, add anti-freeze.



›››

windscreen washer reservoir on
page 268



›››

page 268

Battery

The battery is located in the engine compart-
ment

›››

