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Cooling System (Mechanical)
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Engine Cooling - 4.2L V8 - Art, Awn, BBD
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Engine Cooling System
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Cooling system components
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Pressure relief valve in filler cap, checking
Pressure relief valve in filler cap, checking
Install filler cap on tester.
Build up pressure with hand pump.
Pressure relief valve must open at 1.2 to 1.5 bar.
Fig 1: Installing Radiator Filler Cap On Tester
Courtesy of AUDI OF AMERICA, INC.
Courtesy of AUDI OF AMERICA, INC.