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Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis >> External Pages >> Different car >> Section 463 (Cooling System - Repair) >> Coolant, Checking Cooling System >> 17 00 009 Checking cooling system for watertightness (N54, N63) >> Checking cooling system for watertightness >> Checking pressure drop in cooling system

Checking pressure drop in cooling system

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

Build up EXCESS PRESSURE , wait approx. 2 minutes.

Cooling system is impervious to watertightness 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)
G06889227Courtesy of BMW OF NORTH AMERICA, INC.
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