User Manual - Page 337

For LEON SPORTSTOURER 2021.

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Checking and refilling levels
Co
ver the coolant expansion tank cap with
a cloth and carefully unscrew it to the left
.
Top up the coolant only if there is still cool-
ant in the e
xpansion tank, otherwise you
could damage the engine. If there is no
coolant in the expansion tank, do not con-
tinue driving. You should obtain professional
assistance
.
If there is still some coolant in the expansion
t
ank, top up to the upper mark.
Top up with coolant until the level becomes
stable.
Screw the cap back on correctly.
If there is a coolant leak, take the vehicle spe-
cialised workshop to have the cooling system
examined.
WARNING
The cooling syst
em is under pressure. Do
not unscrew the cap on the coolant expan-
sion tank when the engine is hot: risk of
burns!
Store the antifreeze in its original con-
tainer and keep it out of reach of children.
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.
CAUTION
If you run out of coolant in the expansion
t
ank, park the car in a safe place and do
not continue driving. Obtain technical as-
sistance.
Brake fluid
Check and r
efill the brake fluid
Fig. 235 Engine compartment: brake fluid res-
erv
oir cap.
The brake fluid reservoir is located in the en-
gine compartment
page 329.
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 87.
In right-hand drive vehicles the brake fluid
reservoir is on the other side of the engine
compartment.
Changing brake fluid
We recommend that you have the brake fluid
changed by a Technical Service.
WARNING
If the brake fluid level is low or unsuita-
bl
e/old brake fluid is used, the brake sys-
tem may fail or braking power may be re-
duced.
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 sys-
tem. These bubbles can significantly re-
duce braking power, notably increasing
braking distance, and could result in the to-
tal failure of the brake system.
Be sure to always use the correct brake
fluid. Only use brake fluid that expressly
meets the VW 501 14 standard.
»
335
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