2012-2020 Seat Leon 4 Door Practical tips -> Brake fluid User Manual
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Practical tips -> Brake fluid for Your Seat Leon 4 Door Third Generation (2012-2020)

Practical tips  
CAUTION  
The original additives should never be  
mixed with coolants which are not ap-  
proved by SEAT. Otherwise, you run the risk  
of causing severe damage to the engine  
and the engine cooling system.  
However, if the brake fluid level goes down  
noticeably in a short time, or drops below the  
MIN mark, there may be a leak in the brake  
system. Seek specialist assistance. A warning  
light on the instrument panel display monitors  
The antifreeze and coolant fluid can be a  
health hazard. Therefore, the antifreeze  
should be stored in the original container in  
a safe place out of reach of children. Fail-  
ure to comply could result in poisoning.  
the brake fluid level page 123.  
›››  
If working inside the engine compart-  
ment, remember that, even when the igni-  
tion is switched off, the radiator fan may  
start up automatically, and therefore there  
is a risk of injury.  
In right-hand drive vehicles the brake fluid  
reservoir is on the other side of the engine  
compartment.  
If the fluid in the expansion tank is not  
purple but is, for example, brown, this indi-  
cates that the G13 additive has been mixed  
with an inadequate coolant. The coolant  
must be changed as soon as possible if this  
is the case! This could result in serious  
faults and engine damage.  
Changing brake fluid  
WARNING  
The regular intervals at which the brake fluid  
should be replaced are listed in the Mainte-  
nance Programme. We recommend you have  
it replaced at a SEAT Official Service, during  
an Inspection Service.  
If there is not enough anti-freeze in the  
coolant system, the engine may fail lead-  
ing to serious damage.  
For the sake of the environment  
Please make sure that the percentage of  
Coolants and additives can contaminate  
the environment. If any fluids are spilled,  
they should be collected and correctly dis-  
posed of, with respect to the environment.  
additive is correct with respect to the low-  
est expected ambient temperature in the  
zone in which the vehicle is to be used.  
WARNING  
Brake fluid should be stored in the closed  
When the outside temperature is very  
original container in a safe place out of  
reach of children. Risk of poisoning!  
low, the coolant could freeze and the vehi-  
cle would be immobilised. In this case, the  
heating would not work either and inade-  
quately dressed passengers could die of  
cold.  
If the brake fluid is left in the system for  
Brake fluid  
too long and the brakes are subjected to  
heavy use, vapour bubbles may form in the  
brake system. This would seriously affect  
the efficiency of the brakes and the safety  
of the vehicle. This may cause an accident.  
Top up brake fluid  
Read the additional information carefully  
››› page 49  
CAUTION  
Do not top up the expansion tank with cool-  
ant fluid if it is empty! Air could enter the  
cooling system. In this case, stop driving.  
Seek specialist assistance. Otherwise,  
there is a risk of engine damage.  
CAUTION  
Checking the brake fluid level  
Brake fluid should not come into contact  
with the vehicle paintwork, as it is abrasive.  
The brake fluid level must be between the  
MIN and MAX markings.  
328  

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