Jetta L4-2.0L (BEV) (2004)
Requirements
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Engine oil level OK, checking
Engine: BBW
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Oil pressure warning light -K3- must light up for approximately 3 seconds when ignition is switched on
Continue for all engines
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Coolant temperature minimum 80° (coolant fan must run once)
Note: Functional check and servicing the optical and acoustic oil pressure warning:
Refer to Electrical Wiring Diagrams
Work sequence
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Remove Oil pressure switch -F1- and screw into tester.
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Screw tester into oil filter bracket in place of oil pressure switch.
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Connect brown wire of tester to Ground (-).
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Connect diode test lamp V.A.G. 1527 B using auxiliary cables from V.A.G. 1594 A to battery positive (+) and oil pressure switch.
LED must not light up.
If the LED lights up:
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Replace 1.4 bar oil pressure switch -F1-.
If the LED does not light up:
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Start engine and increase revolutions slowly.
At 1.2 to 1.6 bar pressure LED must light up
If the LED does not light up:
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Replace oil pressure switch.
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Increase engine speed further.
At 2000 rpm and an oil temperature of 80°C oil pressure should be between 2.7 to 4.5 bar
At higher engine speeds oil pressure must not exceed 7.0 bar.
If the specifications are not attained:
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Correct mechanical damage, e.g. bearing damage.
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Replace oil filter bracket with pressure relief valve.
If the specification is exceeded:
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Check oil galleries.
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If necessary, replace oil filter bracket with pressure relief valve.