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Engine cooling > < Oil pump: removing and fitting

Leon Mk1

Oil pressure and oil pressure switch: checking
   
Oil pressure and oil pressure switch: checking
Special tools and workshop equipment required
t  Oil pressure tester -V.A.G 1342-
t  Voltage tester -V.A.G 1527B-
t  Adapter set -V.A.G 1594C-

  Note
Checking operation of and servicing visual and acoustic oil pressure gauge → Current flow diagrams, Electrical fault finding and Fitting locations
Test sequence
   
–  Remove the oil pressure switch -F1-, and screw it into the tester.
–  Screw tester into the cylinder head in place of the oil pressure switch.
–  Connect the brown wire of the tester to earth (-).
–  Connect the voltage tester -V.A.G 1527B- with the auxiliary cables from the measuring tool set -V.A.G 1594C- to positive of battery (+) and to the oil pressure switch.
–  If the LED lights up, replace oil pressure switch -F1-.
If the LED does not light up:
–  Start engine and slowly increase engine speed. The LED should light up between 0.3 ..0.7 bar; if not replace oil pressure switch.
–  Increase engine speed further. At 2000 rpm and with the oil temperature at 80 °C, the oil pressure should be 2.0 bar at least.
At higher engine speed the oil pressure must not exceed 7.0 bar.
  V17-0540

Engine cooling > < Oil pump: removing and fitting