Checking pressure drop in cooling system

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Open cap on coolant expansion tank. Fit special tools (1) 17 0 101 and (2) 17 0 113.

Build up GAUGE PRESSURE and wait approx. 2 minutes.

Cooling system is impervious to leaks if pressure drop is max. 0.1 bar.

Fig 1: Checking Pressure Drop In Cooling System Using Special Tools (17 0 101) And (17 0 113)

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