Skoda Octavia II 2004 Workshop Manual page 155

Test condition
• Engine must be warm.
Test sequence
WARNING
When opening the coolant expansion reservoir, hot steam or
hot coolant may escape. Cover the cap with a cloth and open
carefully.
– Open the cap of the coolant expansion reservoir.
– Fit the cooling system testing device - V.A.G 1274 - onto the
coolant expansion tank using adapter - V.A.G 1274/8- .
– Generate an overpressure of approx. 0.1 MPa (1.0 bar) to test
the cooling system.
If pressure drops:
– Search position of the leak and repair fault.
Testing the pressure relief valve in the cap
– Fit the cooling system testing device - V.A.G 1274 - onto the
coolant expansion tank using adapter - V.A.G 1274/9- .
– To check the pressure relief valve, create an overpressure.
• The pressure relief valve should open at a pressure of
0.14...0.16 MPa (1.4...1.6 bar).
If the pressure relief valve does not open:
– Renew cap.
2.0/100; 103 kW TDI PD Engine - Edition 01.2018
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted
unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.�
1. Removing and installing parts of the cooling system
Octavia II 2004 ➤ , Octavia II 2010 ➤
149