Jetta V6-2.8L (BDF) (2002)
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Remove oil pressure switch -F1- and screw into tester.
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Screw tester VAG 1342 with adapter VAG 1342/14 into oil filter bracket instead of oil pressure switch.
Note: Observe installation position of adapter: The tapered connecting socket of the adapter is screwed to the pressure hose of the tester.
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Connect brown wire of tester to Ground (-).
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Connect diode test lamp VAG 1527 B to battery positive (+) and oil pressure switch using adapter cables from VAG 1594 A. LED must not light
up.
If the LED lights up:
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Replace oil pressure switch -F1-, Refer to Oil Pressure Sender, Service and Repair
If the LED does not light up:
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Start engine and run at idling speed. At 1.2...1.6 bar LED must light up; otherwise replace oil pressure switch -F1-.
Checking oil pressure
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Check oil pressure at different revolutions:
2,000 rpm: 3.0...5.5 bar
above 2000 rpm: maximum 7.0 bar.
If the specifications are not attained:
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Repair mechanical damage, e.g. bearing damage.
At higher engine speeds the oil pressure must not exceed 7.0 bar.
If the specification is exceeded:
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Check oil galleries.
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Replace oil pump if necessary.