Cooling System, Checking For Coolant Leaks: Notes

Special tools and workshop equipment required

Procedure

Fig 1: Identifying MIN/MAX Markings -Arrow-

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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 TesterVAG1274B with the Cooling System Tester - AdapterVAG1274/8 on the coolant reservoir.

Fig 2: Identifying Cooling System Tester VAG1274B

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-- Generate approximately 1.0 bar (14.5 psi) pressure using the cooling system tester hand pump.

-- If pressure falls, search for leaks and correct problem.