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Home >> BMW >> 2009 >> 650i 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 2434 (Cooling System - Repair) >> Coolant, Checking Cooling System >> 17 00 009 Checking cooling system for water leaks (S85) >> Checking pressure drop in cooling system

Checking pressure drop in cooling system

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Open cap on coolant expansion tank. Fit special tool 17-0100 TESTER .

Build up gauge pressure of 2 bar, 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 0 101/17 0 113)
G06203624Courtesy of BMW OF NORTH AMERICA, INC.
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