volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

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Checking engine oil cooler for leaks > < Checking cooling system for leaks

Golf Mk5

Checking pressure relief valve in filler cap
Checking pressure relief valve in filler cap
   
–  Attach cooling system tester -V.A.G 1274- with cooling system tester adapter -V.A.G 1274/9- to cap.
–  Use hand pump on cooling system tester to create a pressure of max. 1.6 bar.
The pressure relief valve must not open.
If the pressure relief valve opens prematurely:
–  Renew sealing cap.
–  Increase pressure to over 1.6 bar.
The pressure relief valve must open.
If the pressure relief valve does not open:
–  Renew sealing cap.
  A19-0055

Checking engine oil cooler for leaks > < Checking cooling system for leaks