2020-2026 Cupra Leon 4 Door Practical tips -> Windscreen washer reservoir User Manual
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Practical tips -> Windscreen washer reservoir for Your Cupra Leon 4 Door First Generation (2020-2026)

Checking and refilling levels  
Check there is enough windscreen water in  
You can buy VW 501 14 standard brake  
Windscreen washer reser-  
voir  
the reservoir.  
fluid at a specialised CUPRA service or at a  
SEAT Official 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.  
Plain water is not enough to clean the wind-  
screen and headlights. We recommend that  
you always add a product to the windscreen  
washer fluid.  
Checking the level of the window  
washer tank and refilling it  
The replacement brake fluid must be  
new.  
Recommended windscreen wipers  
Brake fluid should be stored in the closed  
For the hottest seasons we recommend  
original container in a safe place out of  
reach of children. Risk of poisoning!  
summer G 052 184 A1 for clear glass. Propor-  
tions of the mixture in the washer fluid tank:  
1:100 (1 part concentrate per 100 parts wa-  
ter).  
CAUTION  
Brake fluid should not come into contact  
with the vehicle paintwork, as it is abrasive.  
All year round, G 052 164 A2 for clear glass.  
Approximate proportion of the winter mix-  
ture, up to -18°C (0°F): 1:2 (1 part concen-  
trate per 2 parts water); otherwise, a 1:4 pro-  
portion of mixture in the washer fluid tank.  
For the sake of the environment  
Fig. 226 In the engine compartment: win-  
dow washer tank cap.  
Brake fluid is an environmental pollutant.  
Collect any spilt service fluids and allow a  
professional to dispose of them.  
The capacity of the window washer tank can  
be found in page 360 .  
The window washer tank is in the engine  
›››  
compartment page 318 .  
›››  
Check the water level in the windscreen  
washer reservoir regularly and top up as re-  
quired.  
CAUTION  
If the water from the windscreen washer  
does not contain enough anti-freeze, it  
may freeze on the windscreen and rear  
window, reducing forward and rear visibili-  
ty.  
The window washer tank contains liquid de-  
tergent for the windscreen and rear window.  
Open the bonnet page 316 .  
›››  
In winter, ensure the windscreen washer  
The window washer tank is marked with  
contains enough anti-freeze.  
the symbol on the cap.  
In cold conditions, you should not use the  
»
windscreen wiper system unless you have  
325  

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