A8 Quattro Sedan V8-4.2L (AKB) (2002)
Oil Pressure Sender: Testing and Inspection
Oil pressure switches, checking
Oil pressure indicator with audible and visible warning
Read measured value block
Test requirements
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Measured value block OK
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Oil level OK
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Oil pressure warning lamp (K3) should light up when ignition is switched on.
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On vehicles with auto-check system, "OK" should appear in the display (call up symbol).
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Engine oil temperature about 80°C (176°F). Radiator fan must have started at least once.
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Remove engine cover panel.
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Remove upper section of air cleaner and set aside.
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Remove lower section of air cleaner.
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Remove oil pressure switch and install adapter V.A.G 1342/3 in its place.
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Install V.A.G 1342 into adapter V.A.G 1 342/3.
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Install oil pressure switch into V.A.G. 1 342.
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Connect brown wire -2- to Ground (GND) (-).
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Connect blue wire -1- to oil pressure switch.
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Connect diode test light V.A.G 1527 to wire -1- and battery B+.
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Install lower section of air cleaner.
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Install upper section of air cleaner.
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Start engine and test switching points of switch by varying engine speed as required.