Touareg V8-4.2L (BHX) (2004)
At higher engine speeds oil pressure must not exceed 7.0 bar
If specification is exceeded:
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If necessary, replace oil pump --> [ Oil Pump ] See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Oil Pump/Service and Repair/Oil
Pump
Oil pressure switch, checking
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Remove oil pressure switch (F1) and install oil pressure gauge.
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Install oil pressure gauge (V.A.G 1342) with adapter (V.A.G 1342/14) into oil filter housing in place of oil pressure switch. --> [ (Item 16) , 20
Nm ] See: Engine, Cooling and Exhaust/Engine/Engine Lubrication/Oil Filter Housing/Service and Repair
‹› Note installation position of adapter: The conical connecting neck of the adapter is install to the pressure hose of the tester.
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Connect brown wire of tester to Ground (GND) (-).
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Connect voltage tester (V.A.G 1527B) using assist cables from (V.A.G 1594 C) to battery positive (+) and oil pressure switch. LED must not light
up.
If LED lights up:
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Replace oil pressure switch (F1).
If LED does not light up:
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Start engine and run at idle speed. At 1.2 to 1.6 bar pressure LED must light up; otherwise replace Oil Pressure Switch (F1).