Seat Ateca 2017 Workshop Manual page 249

4 cyl. petrol engine (1.8 l and 2.0 l with direct injection, 4 V, exhaust gas turbocharger, timing chain,
Note
The water used for mixing has a major influence on the effec‐
♦
tiveness of the coolant. Since water quality differs from country
to country and even region to region, it is necessary to set a
standard for the quality of water to be used. Distilled water
satisfies all requirements. It is therefore recommended to use
distilled water when mixing coolant for topping up or replacing
coolant.
Only coolant additives listed in the ⇒ Electronic parts cata‐
♦
logue (ETKA) must be used. Other additives may have con‐
siderable effect on the anti-corrosion. The resulting damage
could lead to loss of coolant and, consequently, to major en‐
gine damage.
Mixed in the proper proportions, coolant inhibits frost and cor‐
♦
rosion damage as well as calcium deposits. Such additives
also raise the boiling point of the coolant. For these reasons,
the cooling system must be filled all year round with a coolant
additive.
Thanks to this rise in the boiling point, the coolant guarantees
♦
good running, even when the engine undergoes heavy strain,
especially in countries with tropical climates.
ONLY a refractometer - T10007A- may be used for determin‐
♦
ing the current anti-freeze value.
The frost protection must be effective down to at least -25 °C,
♦
and approx. -36 °C in cold countries. The effectiveness of the
frost protection may only be increased if a higher level of frost
protection is required due to the climate. But only to -48 °C.
Otherwise, the cooling effect of the coolant will be impaired.
The concentration of the coolant must not be reduced by add‐
♦
ing water in summer or in countries with hot climates. Frost
protection must be guaranteed down to at least -25 °C.
Read the frost protection value from the respective scale for
♦
the coolant additive being used.
The temperature read off the refractometer - T10007A- corre‐
♦
sponds to the »ice flocculation point«. Flakes of ice may start
forming in the coolant below this temperature.
Never reuse old coolant.
♦
Use only a water/coolant additive mixture as a slip agent for
♦
coolant hoses.
Recommended mixture ratio for coolant
• Coolant (40 %) and water (60 %) for frost protection to -25 ℃
• Coolant (50 %) and water (50 %) for frost protection to -36 °C
• Coolant: ⇒ Electronic parts catalogue (ETKA)
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by SEAT S.A. SEAT S.A does not guarantee or accept any liability with
respect to the correctness of information in this document. Copyright by SEAT S.A.
Ateca 2017 ➤ , León 2013 ➤ , León ST 2013 ➤
EA 888 III. Gen) - Edition 10.2018
241
1. Cooling system/coolant