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

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  
Windscreenwasherreservoir  
However, if the brake fluid level goes down no-  
ticeably 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.  
ing power, notably increasing braking dis-  
tance, and could result in the total failure of  
the brake system.  
Windscreen washer reser-  
voir  
Be sure to always use the correct brake  
fluid. Only use brake fluid that expressly  
Checking the level of the window  
meets the VW 501 14 standard.  
washer tank and refilling it  
You can buy VW 501 14 standard brake  
Brake fluid level  
fluid in a SEAT dealership or a SEAT O„-  
cial Service. If none is available, use only  
high-quality brake fluid that meets DIN ISO  
4925 CLASS 4 standards, or USA Standards  
FMVSS 116 DOT 4.  
The control lamp lights up red.  
Brake fluid level is too low.  
Stop driving!  
The replacement brake fluid must be new.  
Brake fluid should be stored in the closed  
Check the brake fluid level.  
If the brake fluid level is too low, seek special-  
original container in a safe place out of  
reach of children. Risk of poisoning!  
ist assistance.  
Changing brake fluid  
Fig. 184 In the engine compartment: blue cap  
of the windscreen washer tank.  
NOTICE  
We recommend that you have the brake fluid  
changed by a Technical Service.  
Brake fluid should not come into contact with  
the vehicle paintwork, as it is abrasive.  
Check the water level in the windscreen washer  
reservoir regularly and top up as required.  
WARNING  
Note  
If the brake fluid level is low or unsuitable/old  
brake fluid is used, the brake system may fail  
or braking power may be reduced.  
The window washer tank contains liquid deter-  
gent for the windscreen and rear window.  
Brake fluid is an environmental pollutant.  
Collect any spilt service fluids and allow a  
professional to dispose of them.  
There is a sieve in the filler neck of the washer  
fluid tank. When filling the tank, this sieve re-  
tains large dirt particles so that they do not  
reach the nozzles. Do not remove the sieve ex-  
cept for cleaning. If the sieve is damaged or  
not fitted, these dirt particles could enter the  
system during filling and clog the windscreen  
washer nozzles.  
Check the brake system and the brake fluid  
level regularly!  
When the brake fluid is used and brakes  
are subjected to extreme braking forces,  
bubbles of vapour form in the brake system.  
These bubbles can significantly reduce brak-  
273  

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