Oil pressure, checking
WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Special tools, testers and auxiliary items required
- Oil pressure gauge V.A.G 1342
- Voltage tester V.A.G 1527 B
- Connector test set V.A.G 1594 C
Work procedure
- Oil level OK
- Engine oil temperature approximately 80 ° C.
- Remove oil pressure switch → Oil Pressure Switch F1 , removing and installing .
- Connect oil pressure tester V.A.G 1342 to hole for oil pressure switch.
- Screw oil pressure switch - 2 - into oil pressure gauge V.A.G 1342.
Oil pressure switch, checking
- Connect brown wire - 1 - of oil pressure gauge to Ground (GND).
- Connect voltage tester V.A.G 1527 B using adapter cables from connector test kit V.A.G 1594 C to oil pressure switch and battery plus (+).
- LED must not light up.
If LED lights up:
- Replace Oil Pressure Switch.
- Start engine.
NOTE:
- While starting engine, watch Pressure Tester and LED as oil pressure switch may open during start.
- At 1.2 to 1.6 bar pressure, LED must light up.
If LED does not light up:
- Replace Oil Pressure Switch.
Oil pressure, checking
- Start engine.
- Oil pressure at idle: min. 1.2 bar positive pressure.
- Oil pressure at 2000 RPM: min. 3.4 bar positive pressure.
Assembling
- Install oil pressure switch → Oil Pressure Switch F1 , removing and installing .