Checking For Leaks
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Special tools and workshop equipment required
- Cooling System Tester VAG1274B
- Cooling System Tester - Adapter VAG1274/8
- Cooling System Tester - Adapter VAG1274/9
Procedure
- Engine at operating temperature.
WARNING:
Risk of scalding due to hot steam and hot coolant.
- The coolant system is under pressure when the engine is warm.
- Reduce pressure by covering coolant reservoir cap with a cloth and carefully opening.
-- Open the coolant reservoir cap.
-- Position the Cooling System Tester VAG1274B with the Cooling System Tester - Adapter VAG1274/8 on the coolant reservoir.
-- Generate a positive pressure of approximately 1.0 bar (14.5 psi) using hand pump of cooling system tester.
-- If pressure decreases, search for leaking areas and repair the malfunction.