1997 SKODA OCTAVIA engine

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Downloaded from www.Manualslib.com manuals search engine
19Cooling System
Edition 08.96

Testing cooling system for leaks
Special tools, testers and aids required
Cooling system tester V.A.G 1274
Adapter V.A.G 1274/8
Adapter V.A.G 1274/9
Test condition
Engine at operating temperature
Test procedure
- Open cap of coolant expansion reservoir.
Important! Hot steam may escape when the expansion re-servoir is open. Cover over cap with cloth and open
carefully.
- Mount tester V.A.G 1274 with adapter V.A.G
1274/8 onto the expansion reservoir.
- Operate the priming pump of the tester to produce a pressure of about 0.1 MPa.
- If the pressure drops, locate the leakage point and rectify.
Testing pressure relief valve in cap
- Screw cap onto the tester using adapter V.A.G 1274/9.
- Operate the priming pump of the tester to produce a pressure of about 0.15 MPa.
- The pressure relief valve should open at a pressure of 0.12 ... 0.15 MPa.