2017-2026 Seat Arona 4 Door Checking and refilling levels -> Cooling system User Manual
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Checking and refilling levels -> Cooling system for Your Seat Arona 4 Door First Generation (2017-2026)

Coolingsystem
Closing the bonnet  
NOTICE  
Fluids and consumables  
Slightly lift the bonnet.  
Use only appropriate operating fluids. Never  
confuse operating fluids. This could result in  
serious malfunctions and motor damage!  
Introduction  
Release the bonnet stay and replace it in its  
support.  
All fluids and consumables, such as engine  
coolant or vehicle batteries, are subject to con-  
tinuous development. For this reason, whenever  
a fluid or consumable needs to be replaced,  
please contact a specialist workshop.  
At a height of approximately 20 cm let it fall  
so it locks.  
For the sake of the environment  
If the bonnet does not close, do not press  
downwards. Open it again and let it fall as  
mentioned above.  
Leakages of operating fluids can contami-  
nate the environment. If any operating fluid  
leaks, collect it in an appropriate container  
and dispose of it properly and in an environ-  
mentally friendly manner.  
SEAT dealers always promptly receive informa-  
tion about any modifications.  
WARNING  
WARNING  
Make sure that the bonnet is properly closed.  
If it opens when driving, it can cause an acci-  
dent.  
If unsuitable fluids and consumables are  
used or used improperly, accidents, injuries,  
burns and severe poisoning can occur.  
Cooling system  
Introduction  
NOTICE  
Only store operating fluids in their original  
Only carry out work on the motor cooling sys-  
tem yourself if you are familiar with the neces-  
sary operations and the generally applicable  
safety measures, and if you have the appro-  
priate tools, equipment and operating fluids.  
Works performed inadequately could lead to  
serious injuries . In this case, seek a specialised  
workshop to perform all the works. SEAT rec-  
ommends visiting a SEAT dealership for this.  
containers, tightly closed.  
In certain weather conditions, ice or snow  
may build up between the bonnet and wind-  
screen; do not force the bonnet open until  
you are sure that there is no ice or snow, es-  
pecially in the hinge area.  
Never store operating fluids in empty food  
cans, bottles or other empty containers, as  
they could be ingested by somebody.  
Keep all fluids and consumables out of  
reach of children.  
NOTICE  
Always read and observe the information  
and warnings given on containers of operat-  
To avoid damage to the bonnet and to the  
windscreen wiper arms, only open it when  
the windscreen wipers are in place against  
the windscreen.  
ing fluids.  
When using products that emit harmful va-  
pours, always work outdoors or in a well-ven-  
tilated area.  
269  
Checking and refilling levels  
Get information from a specialist workshop  
about which coolant is suitable for your vehicle.  
SEAT recommends visiting a SEAT dealership  
for this.  
WARNING  
WARNING  
Engine coolant is toxic!  
If the vehicle’s cooling system does not have  
su„cient antifreeze protection, the engine  
could fail and this could result in serious in-  
jury.  
Only store coolant in its original container,  
tightly closed and in a safe place.  
To protect the engine cooling system, the ad-  
ditive percentage should always be at least  
40%. If more antifreeze protection is required  
for climatic reasons, the additive proportion  
can be increased. However, it should only be  
increased up to a maximum of 55 %, otherwise  
the antifreeze protection would be reduced and  
the cooling e„ect would be impaired.  
Never store motor coolant in empty food  
Ensure that the coolant fluid additive per-  
cans, bottles or other empty containers, as it  
centage is correct, taking into account the  
lowest ambient temperature expected in the  
location where the vehicle is to be used.  
could be ingested by another person.  
Always keep motor coolant out of reach of  
children.  
When the outside temperature is very low,  
Ensure that the coolant fluid additive per-  
the coolant could freeze and the vehicle  
could be immobilised. In this case, the heat-  
ing would not work either and inadequately  
dressed passengers could die of cold.  
centage is correct, taking into account the  
lowest ambient temperature expected in the  
location where the vehicle is to be used.  
The G12evo (TL-VW 774 L) can be recognised  
by its lilac colouring. This mixture of water  
and additive not only provides antifreeze pro-  
tection down to -25°C (-13°F), but also pro-  
tects the light alloy parts of the cooling system  
against corrosion, prevents limescale build-up  
and considerably raises the boiling point of the  
coolant.  
When the outside temperature is very low,  
the coolant could freeze and the vehicle  
could be immobilised. In this case, the heat-  
ing would not work either and inadequately  
dressed passengers could die of cold.  
NOTICE  
Never mix the original additives for the  
G12evo coolant (TL-VW 774 L) with motor  
coolant fluid not authorised by SEAT.  
When topping up the coolant, a mixture of dis-  
tilled water and at least 40% of the appropri-  
ate coolant additive should be used for opti-  
mum corrosion protection ››› page 271.  
If the fluid in the expansion tank does not  
For the sake of the environment  
have a pink colour (resulting from mixing the  
lilac additive with distilled water), but is, for  
example, brown, the suitable coolant may  
have been mixed with another unsuitable  
one. The coolant must be changed as soon  
as possible if this is the case! Otherwise se-  
rious malfunctions or damage to the engine  
and the cooling system could occur!  
Coolants and additives can contaminate the  
environment. If any operating fluid leaks out,  
collect it and dispose of it properly and in an  
environmentally friendly manner.  
Coolant specifications  
The factory fitted motor cooling system is filled  
with a mixture of specially treated water and at  
least 40% coolant additive G12evo (TL-VW 774  
L).  
270  
Coolingsystem
(
If the level is below the minimum level mark  
) on the tank, top up with coolant. When the  
For the sake of the environment  
Motor coolant and its additives can pollute  
the environment. If any operating fluid leaks  
out, collect it and dispose of it properly and  
in an environmentally friendly manner.  
motor is warm, the coolant level may be slightly  
above the upper mark.  
Topping up the fluid  
When the motor coolant level is too low, the  
coolant warning light comes on. In this case,  
immediately seek assistance from specialist  
personnel.  
Check and refill the coolant  
Fig. 182 Front compartment: coolant  
expansion tank cap.  
If the coolant level is too low and there is no  
workshop nearby, note the following:  
Always protect your face, hands and arms  
Previous steps  
from hot coolant or steam by placing a suitable  
cloth over the cap of the motor coolant expan-  
sion tank.  
Park the vehicle on a firm, flat surface.  
Wait until the engine has fully cooled ›››  
Open the front bonnet.  
.
Carefully unscrew the cap ›››  
.
Only top up with fresh coolant according to  
The motor coolant expansion tank can be  
recognised by the symbol on the cap  
SEAT specifications ››› page 270.  
Fig. 181 In the front compartment: marking on  
coolant expansion tank.  
››› Fig. 182  
Only top up with coolant if there is still some  
coolant left in the expansion tank; otherwise the  
motor could be damaged! If you do not see any  
coolant in the expansion tank, do not continue  
driving and seek specialist assistance.  
Check the level  
When the vehicle is delivered (new vehicles),  
the coolant may be above the marked area.  
This is normal. It is not necessary to suck the  
coolant out.  
If there is still some coolant left in the expan-  
sion tank, top up with coolant up to the tank’s  
upper mark and check the level the next day.  
If the level drops again, go to a workshop and  
request a check of the cooling system.  
When the engine is cold, check the coolant  
level using the side marking on the expansion  
tank ››› Fig. 181. The coolant level should be  
between the marks.  
The coolant level must be between the marks  
on the expansion tank ››› Fig. 181. Never ex-  
ceed the top edge of the marked area ›››  
.
271  
Checking and refilling levels  
Screw the cap on tightly.  
When the motor is hot, its cooling system is  
Do not add coolant if the expansion tank  
If engine coolant with the recommended  
pressurised. Do not open the expansion tank  
cap, hot coolant may splash out and cause  
severe burns and other injuries.  
is completely empty! Air may have got into  
the cooling system. Do not continue driving  
and seek assistance from specialist person-  
nel. This could result in motor damage.  
specifications is not available in an emergency,  
do not use any other coolant additive! In this  
case, top up with distilled water ››› only.  
Next, ensure that the recommended additive is  
topped up as soon as possible in the correct  
proportion ››› page 270.  
Turn the cap slowly and very care-  
fully anticlockwise while pressing it down  
When changing the operating fluids, make  
slightly.  
sure that you pour the correct fluids into the  
correct filler necks. Using the wrong operat-  
ing fluids can lead to serious malfunctions  
and motor damage.  
Always protect your face, hands and  
arms from the hot coolant and steam with  
a large thick cloth.  
WARNING  
Steam and hot motor coolant can cause se-  
vere burns.  
NOTICE  
Brake fluid  
Never open the front bonnet if you see or  
Only use distilled water! Other types of wa-  
ter contain chemical substances that could  
cause significant corrosion damage. If you  
have added non-distilled water, have all of  
the motor cooling system fluid changed im-  
mediately by a specialist workshop.  
hear steam or coolant escaping from the  
front compartment. Always wait until you can  
no longer see or hear steam or coolant es-  
caping. Touching hot parts can result in skin  
burns.  
Check and refill the brake fluid  
Before opening the front bonnet, please  
When topping up the, do not fill over the  
note the following:  
upper edge of the marked area ››› Fig. 181.  
Otherwise, when the temperature rises the  
excess fluid will be expelled from the motor  
cooling system and could cause damage.  
Apply the parking brake.  
Always keep children away from the front  
compartment and never leave them unat-  
If the system leaks a lot of coolant, only  
tended.  
refill once the motor has cooled down com-  
pletely. If there is a significant loss of cool-  
ant, there may be leaks in the cooling sys-  
tem. Immediately go to a specialist workshop  
to have the system checked. This could result  
in motor damage.  
Fig. 183 Engine compartment: brake fluid  
reservoir cap.  
Checking the brake fluid level  
The brake fluid level must be between the  
and  
markings.  
272  

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