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Engine cooling > < Removing and installing oil pump

Octavia Mk1

Testing oil pressure and oil pressure switch
Testing oil pressure and oil pressure switch
Special tools and workshop equipment required
t  Oil pressure tester e. g. - V.A.G 1342 -
t  Voltage tester, e.g. -V.A.G 1527-
t  Measuring tool set, e.g. -V.A.G 1594 A-
  Note
Functional test and repair of the visual and acoustic oil pressure display → Current flow diagrams and Fitting locations.
Test sequence
   
–  Remove oil pressure switch and screw into tester.
–  Screw tester in the cylinder head instead of the oil pressure switch.
–  Connect brown cable of tester to earth (-).
–  Connect voltage test to battery positive and to oil pressure switch.
–  Start engine and slowly increase engine speed. Given an oil pressure of 0.3…0.7 bar (0.03….0.07 MPa) the LED must light up, otherwise replace the oil pressure switch.
–  Increase engine speed further. At 2000 rpm and an oil temperature of 80°C the oil overpressure should be at least 2 bar (0.2 MPa).
–  At higher speed the oil overpressure must not exceed 7 bar (0.7 MPa).
  V17-0540

Engine cooling > < Removing and installing oil pump