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Fuel supply, gas operation > < Checking with the cooling system testing deviceV.A.G 1274

Octavia Mk2

Checking with the cooling system testing deviceV.A.G 1274 B
Checking with the cooling system testing device -V.A.G 1274 B-
Special tools and workshop equipment required
t  Cooling system testing device, e.g. -V.A.G 1274 B-
t  Adapter, e.g. -V.A.G 1274/8-
t  Adapter, e.g. -V.A.G 1274/9-
Test condition
l  Engine is at operating temperature.
Test sequence
  WARNING
Hot steam or hot coolant may escape when the compensation bottle is opened.
t  Wear safety goggles and safety clothing, in order to avoid eye injuries and scalding.
t  Cover the cap with a cloth and open carefully.
–  Open the cap of the coolant expansion reservoir.
–  Screw adapter -V.A.G 1274/8- into the coolant expansion bottle.
–  Connect the connecting piece -V.A.G 1274 B/1- to the adapter -V.A.G 1274/8-.
   
–  Connect the connecting piece -V.A.G 1274 B/1- via the delivered connecting hose to the cooling system testing device -V.A.G 1274 B-.
–  Using the hand pump of the testing device generate a pressure of approx. 0.1 MPa (1.0 bar).
  WARNING
Risk of scalding!
t  Before the cooling system testing device -V.A.G 1274 B- is separated from the connecting hose or the connecting piece -V.A.G 1274 B/1-, the existing pressure must absolutely be released.
t  For this step, press the pressure relief valve on the cooling system testing device -V.A.G 1274 B- until the pressure gauge indicates the value »0«.
If the pressure drops:
–  Search position of the leak and repair fault.
Test the pressure valve in the cap
–  Screw the screw cap into the adapter -V.A.G 1274/9-.
–  Connect the connecting piece -V.A.G 1274 B/1- to the adapter -V.A.G 1274/9-.
  A19-10645
–  Connect the connecting piece -V.A.G 1274 B/1- via the delivered connecting hose to the cooling system testing device -V.A.G 1274 B-.
–  Generate a pressure for testing the pressure valve in the screw cap.
l  The pressure valve should open at a pressure of 0.14...0.16 MPa (1.4...1.6 bar).
If the valve does not open in the prescribed pressure range:
–  Replace cap.
  A19-10748

Fuel supply, gas operation > < Checking with the cooling system testing deviceV.A.G 1274