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Engine cooling > < Cylinder head: Removing and installing

Leon Mk1

Oil pressure and oil pressure switch: test
   
Oil pressure and oil pressure switch: test
Special tools and workshop equipment required
t  oil pressure gauge -V.A.G. 1342-
t  Diode lamp -V.A.G. 1527-
t  Auxiliary measuring set -V.A.G. 1594-

  Note!
t  Operation inspection and repair of visual and acoustic oil pressure indicators:
t  → Current flow diagrams, Electrical fault finding and Fitting locations
Testing process
   
–  Remove the oil pressure switch -F1- and screw it into the tester.
–  Screw the tester into the engine block, in the oil pressure switch's location.
–  Connect the brown tester cable to earth (-).
–  Attach the diode lamp -V.A.G. 1527 B- with the auxiliary cables -V.A.G. 1594 A- to battery positive (+) and to the oil pressure switch. The diode must not light.
–  If the diode lights, renew the 0.9 bar oil pressure switch -F1-.
If the diode does not light:
–  Start the engine and gradually increase engine speed. Between 0.75 ... 1.05 bar overpressure the diode should light, to the contrary, renew the 0.9 bar oil pressure switch.
–  Continue increasing engine speed. At 2,000/min and being at a temperature of 80 °C, the oil pressure should be at least 2.0 bar.
  V17-0540

Engine cooling > < Cylinder head: Removing and installing