A6 Quattro Sedan V8-4.2L (BVJ) (2007)
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Connect voltage tester V.A.G 1527B using adapter cables from connector test kit V.A.G 1594C to oil pressure switch and battery plus ("+").
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LED must not light up.
If LED lights up:
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Replace Oil Pressure Switch.
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Start engine.
Note:
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While starting engine, watch Pressure Tester and LED as oil pressure switch may open during start.
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At 1.2 to 1.6 bar pressure, LED must light up.
If LED does not light up:
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Replace Oil Pressure Switch.
Oil pressure, checking
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Start engine.
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Oil pressure at idle: at least 1.5 bar.
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Oil pressure at 2000 RPM: at least 3.5 bar.
If specifications are not obtained: Check-valve or oil pump malfunctioning.
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Replace oil pump.
Assembling
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Install Oil Pressure Switch F1.