A4 Quattro Wagon L4-2.0L Turbo (BPG) (2005)
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Remove Oil Pressure Switch F1 - A - and screw it into oil pressure gauge.
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Thread oil pressure gauge 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 voltage tester V.A.G 1527 B using adapter cables from connector test set V.A.G 1594 C to battery B+ and oil pressure switch F1 - B -.
LED must not light up.
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If LED lights up, replace 1.4 bar oil pressure switch.
If LED does not light up:
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Start engine and increase engine speed: LED must light up at 1.2 to 1.6 bar positive pressure, otherwise replace oil pressure switch F1.
Oil pressure at idle: min. 2 bar
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Increase engine speed. At 2000 rpm and an oil temperature of 80° C, the oil pressure should be between 2.7 to 4.5 bar
If specifications are not obtained:
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Correct mechanical damage, e.g. bearing damage.
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Replace oil filter bracket with pressure valve, or balance shaft housing with oil pump.
At higher engine speeds oil pressure must not exceed 7.0 bar
If specification is exceeded:
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Check oil channels.
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If necessary, replace oil filter bracket with pressure relief valve.
Torque specifications