SKODA OCTAVIA 1999 1.G / (1U) 1.9TDi 66kw Engine Owners Manual

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19Cooling System

Edition 08.96

Installing coolant pipe
- Before installing, clean or smooth sealing
surface for O-ring.
- Moisten O-ring -1- with coolant and fit onto
coolant pipe -2-.
- Insert coolant pipe into the hole on the cylinder block.
- Bolt bracket for coolant pipe tight to 10 Nm-
Testing cooling system for leaks
Special tools, testers and aids required Cooling system tester (e.g. V.A.G 1274)
Adapter (e.g. V.A.G 1274/8)
Adapter (e.g. V.A.G 1274/9)
Test condition
Engine at operating temperature
Test procedure
Important! Hot vapours may escape when the expansionreservoir is opened. Cover over cap with cleaningrags and open carefully.
- Mount tester V.A.G 1274 with adapter V.A.G 1274/8 onto the expansion reservoir.
- Use 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 fault.
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.