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ID.4 2021 ➤
Maintenance - Edition 12.2020
Note
In countries and regions where no frost occurs due to the local
climatic conditions, the anti-freeze protection does not need to
be checked.
Read precise value for the following tests at light-dark border.
Using a pipette, place a drop of water on the glass to improve
the readability of the light-dark border. The light-dark border can
be clearly recognised on the "WATERLINE".
– Check concentration of anti-freeze additive using refractom‐
eter.
The scale -4- of the refractometer is applicable for the anti-
freeze protection of the window wash/wipe system.
Mixing ratio
Anti-freeze protection
to
-17/-18°C
-22/-23 °C
-37/-38 °C
– Top up fluid in window wash/wipe system (only if customer
requests to do so).
Use genuine washer fluid ⇒ ETKA throughout all year to fill
window wash/wipe system.
Depending on season, a winter product with anti-freeze protec‐
tion or a summer product with increased cleaning capabilities
should be used.
Ready-to-use window cleaner (Ready Mix) does not need to be
mixed with water.
52
4. Descriptions of work
Genuine washer fluid
⇒ ETKA
1 part
1 part
1 part
Water
3 parts
2 part
1 part
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