Jetta GLS VR6 V6-2.8L (AFP) (2001)
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Indicator lamp for oil pressure (K3) must illuminate for approximately 3 seconds after the ignition is turned on.
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Oil temperature at least 80°C
Oil pressure switch, checking
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Remove the 1.4 bar oil pressure switch (F1) (black insulation) and screw it into the tester.
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Screw the tester into the oil filter housing in place of the oil pressure switch.
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Ground the tester brown lead H.
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Connect the V.A.G 1527 B diode test lamp to the battery positive terminal (+) and to the oil pressure switch using the auxiliary cables from V.A.G
1594 A. The Light-Emitting Diode (LED) should not illuminate.
If the LED illuminates:
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Replace the 1.4 bar oil pressure switch (F1).
If the LED does not illuminate:
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Let the engine continue to idle. The light-emitting diode should light at 1.2-1.6 bar. Otherwise, replace the 1.4 bar oil pressure switch (F1).
Oil pressure, checking
Test condition
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The VAG 1342 oil pressure test instrument is riot connected
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Oil temperature at least 80°C
Test sequence
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Start the engine and let it idle.
Specification: oil pressure: at least 2.0 bar
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Increase engine speed.
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The oil should be at least 2.0 bar at 2000 rpm and 80°C oil temperature.
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The oil pressure may not exceed 7.0 bar
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Replace oil pump if necessary.