Seat Ateca 2017 Workshop Manual page 254

Ateca 2017 ➤ , León 2013 ➤ , León ST 2013 ➤
4 cyl. petrol engine (1.8 l and 2.0 l with direct injection, 4 V, exhaust gas turbocharger, timing chain,
EA 888 III. Gen) - Edition 10.2018
– Build up a pressure of 3.0 bar on cooling system tester .
– Observe pressure on pressure gauge of cooling system tester
for 30 seconds.
If no pressure builds up or if the pressure drops again:
There is a leak in the cooling system tester - V.A.G 1274 B- , and
it must not be used.
Operation process
• Engine at operating temperature.
CAUTION
On a warm engine, the cooling system is under high pressure.
Danger of scalding by steam and hot coolant.
Risk of scalding to skin and body parts.
– Wear protection gloves.
– Wear safety goggles.
– Reduce excess pressure by covering cap of coolant expan‐
sion tank with cloths and opening it carefully.
– Open filler cap -arrow- on coolant expansion tank.
– Fit cooling system tester - V.A.G 1274 B- with adapter -
V.A.G 1274/8- onto coolant expansion tank.
– Using hand pump on cooling system tester, build up a pres‐
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
sure of approx. 1.5 bar.
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.
• The pressure must not drop by more than 0.2 bar within 10 mi‐
nutes.
– If the pressure drops by more than 0.2 bar, locate and rectify
leaks.
Note
The pressure drop by more than 0.2 bar within 10 minutes is
caused by the coolant which cools down. The colder the engine,
the lower the pressure drop. If necessary, repeat the check while
the engine is cold.
246
Rep. gr.19 - Cooling