A8L Quattro Sedan W12-6.0L (BSB) (2005)
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Remove oil pressure switch.
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Screw adapter (V.A.G 1342/14) into hole for oil pressure switch.
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Connect oil pressure gauge (V.A.G 1342) to adapter (V.A.G 1342/14).
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Screw oil pressure switch - 2 - into oil pressure gauge (V.A.G 1342).
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Place brown wire of oil pressure gauge on Ground (GND).
Oil Pressure Switch, Checking
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Connect voltage tester (V.A.G 1527 B) - 1 - with adapter cables from connector test kit (V.A.G 1594 C) to oil pressure switch and battery positive.
‹› LED must not light up.
If LED lights up:
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Replace Oil Pressure Switch.
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Start engine.
‹› While starting engine, watch Pressure Tester and LED as oil pressure switch may open during start.
‹› The LED must illuminate at 1.2 to 1.6 bar.
If LED does not light up:
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Replace Oil Pressure Switch.
