2020 Seat Leon warning

Practical tips
The position of the oil filler opening is shown
in the corr esponding engine compartment il
-
lustration ››› page 331
.
Engine oil specification ››› page 331
. WARNING
Oil is highly inflammable! Ensure that no oil
comes int o cont

act with hot engine compo-
nents when topping up. CAUTION
If the oil level is above area ››

› Fig. 224
A ,
do not st ar
t the engine. This could result in
damage to the engine and catalytic con-
verter. Contact a specialised workshop. For the sake of the environment
The oil level must never be above zone
› ›

› Fig. 224
A . Otherwise oil can be drawn
in thr ough the cr
ankcase breather and leak
into the atmosphere via the exhaust sys-
tem. Note
Before a long trip, we recommend finding
an engine oil that conf orms t

o the corre-
sponding VW specifications and recom-
mend keeping it in the vehicle. This way, the
correct engine oil will always be available
for a top-up if needed. Engine oil change
We recommend that you have the engine oil
changed by a T
echnical Service

. WARNING
Only change the engine oil yourself if you
hav e the specialist kno

wledge required!

Checking and refilling levels
increased, but only up to 60 %; otherwise an-
tifr ee
ze 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
additive G12evo for optimal protection
against corrosion. Mixing G12evo with G13
(TL-VW 774 J), G12 plus-plus (TL-VW 774 G),
G12 plus (TL-VW 774 F), G12 (red) or G11
(green blue) engine coolants decreases pro-
tection again corrosion and should be avoi-
ded. WARNING
If there is not enough anti-freeze in the
cool ant syst

em, the engine may fail lead-
ing to serious damage.

Checking and refilling levels
Brake fluid Check and r efill the br
ake fluidFig. 229
Engine compartment: brake fluid res-
erv oir cap

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

› page 331
.
Checking the brake fluid level
The brake fluid level must be between the 
and  markings.
However, if the brake fluid level goes down
noticeably in a short time, or drops below the mark, there may be a leak in the brake system. Seek specialist assistance. A warning
light on the instrument panel display monitors
the brake fluid level ››› page 89
.
In right-hand drive vehicles the brake fluid
reservoir is on the other side of the engine
compartment. Changing brake fluid
We r

ecommend that you have the brake fluid
changed by a Technical Service. WARNING
If the brake fluid level is low or unsuita-
bl e/ol

d brake fluid is used, the brake sys-
tem may fail or braking power may be re-
duced.

Practical tips
WARNING
The 12 volt battery is a subject to wear. A
r eduction in batt
ery power can mean that
some important safety systems, such as
power steering, braking intervention, lights
or airbag systems, operate with limitations
or stop working entirely. This may cause
serious accidents and injuries. To avoid
this, it is necessary to take the following
safety measure:

Practical tips
Charging the battery
The v ehicl
e battery should be charged by a
specialised workshop only, as batteries using
special technology have been installed and
they must be charged in a controlled environ-
ment.
Replacing a vehicle battery
The 12-volt vehicle battery has been de-
signed to suit its location and has special
safety features. If you need to change the
battery, please go to a service centre before
buying a new one to get information about
the electromagnetic compatibility, size and
maintenance requirements, performance and
safety of your vehicle’s new battery. SEAT
recommends you have the battery replaced
by a technical service.
Start-Stop systems ( ››› page 224
) are equip-
ped with a special battery. Therefore, it must
only be replaced with a battery of the same
specifications.
Your vehicle is equipped with an intelligent
power management system to control the
distribution of electrical energy ››› page 344
.
The power management function ensures
that the battery is charged much more effi-
ciently than on vehicles without a power
management system. To maintain this func-
tion after replacing the battery, we recom-
mend that the replacement battery used is of
the same make and type as the original fitted battery. To make proper use of the power
management function after the batt
ery has
been changed, have the battery coded to the
power management mode at a specialised
workshop. WARNING

Wheels
Driving style
F ast cornering, heavy accel
eration and hard
braking (squealing tyres) all increase tyre
wear.
Wheel balance
The wheels on new vehicles are balanced.
However, certain circumstances may lead to
imbalance (run-out), which is detected as vi-
brations in the steering wheel.
Unbalanced wheels should be rebalanced,
as they otherwise cause excessive wear on
steering, suspension and tyres. A wheel must
also be rebalanced when a new tyre is fitted
or if a tyre is repaired.
Incorrect wheel alignment
Incorrect running gear alignment causes ex-
cessive tyre wear, impairing the safety of the
vehicle. If you notice excessive tyre wear, you
should check wheel alignment at a SEAT Of-
ficial Service. WARNING
Unsuitable handling of the wheels and
t yr

es may lead to sudden tyre pressure los-
ses, to tread separation or even to a blow-
out.

Practical tips
The minimum permitted profile depth 1)
hav e
been r eached when the tyres have worn
down to the wear indicators. Replace the
tyres with new ones ››› .
Changing wheel s ar

ound
To ensure that the wear is equal on all tyres
the wheels should be changed round from
time to time according to the system
››› Fig. 236. The useful life of all the tyres will
then be about the same time. WARNING
The tyres must be replaced at the latest
when the tr ead is w

orn down to the tread
wear indicators. Failure to follow this in-
struction could result in an accident.

Wheels
design of summer tyres (width, rubber com-
pound, tr ead patt
ern) gives less grip on ice
and snow. This applies particularly to vehicles
equipped with wide section tyres or with
high speed tyres (code letters H, V or Y on
the sidewall).
Only use winter tyres of the correct type ap-
proved for your vehicle. The sizes of these
tyres are specified in the vehicle's documents
(e.g. EC Certificate of Conformity or COC 1)
).
The vehicle documentation varies depending
on the country of residence.
Winter tyres lose a great deal of their proper-
ties when the tread is worn down to a depth
of 4 mm.
The performance of winter tyres is also se-
verely impaired by ageing, even if the tread is
still much deeper than 4 mm.
A code letter indicating the speed limit is
stamped on all winter tyres ››› page 346
.
Vehicles capable of exceeding these speeds
must have an appropriate sticker attached
so that it is visible to the driver. Suitable stick-
ers are available from the SEAT Official Serv-
ice and specialised workshop. Please note
the regulations to this effect in your country.
“All-weather” tyres can also be used instead
of winter tyres. Using winter tyres with V-rating
Please not
e that the generally applicable
240 km/h (149 mph) speed for winter tyres
with the letter V is subject to technical re-
strictions; the maximum permissible speed
for your vehicle may be significantly lower.
The maximum speed limit for these tyres de-
pends directly on the maximum axle weights
for your car and on the listed weight rating of
the tyres being used.
It is best to contact a SEAT Official Service to
check the maximum speed which is permissi-
ble for the V-rated tyres fitted on your car on
the basis of this information. WARNING
Exceeding the maximum speed permitted
f or the wint

er tyres fitted on your car can
cause tyre failure, resulting in a loss of con-
trol of the vehicle – risk of accident. For the sake of the environment
When winter is over, change back to sum-
mer t yr

es at an appropriate moment. In
temperatures above +7°C (+45°F), perform-
ance will be improved if summer tyres are
used. Fuel consumption, wear and noises
while driving will all be reduced. Snow chains
Snow chains must only be fitted t
o the fr
ont
wheels, even on vehicles with four-wheel
drive.