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Engine cooling > < Oil filter, oil pressure switch

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  Pressure tester -V.A.G 1527B-
t  Auxiliary cable kit -V.A.G 1594C-
t  Articulated wrench, 24 mm -T40175-

  Note
Checking operation of and servicing visual and acoustic oil pressure gauge → Current flow diagrams, Electrical fault finding and Fitting locations
Checking sequence
The oil pressure switch is located on the gearbox side beneath the two camshaft covers.
   
–  Pull connector off oil pressure switch -F1--arrow-.
  N17-10190
–  Remove oil pressure switch -F1- using 24 mm jointed spanner -T40175- and screw into oil pressure tester -V.A.G 1342-.
–  Screw tester into cylinder head in place of oil pressure switch.
–  Connect brown wire of tester to earth (-).
–  Connect voltage tester -V.A.G 1527B- to battery positive (+) and oil pressure switch using cables from auxiliary measuring set -V.A.G 1594C-.
–  If LED lights up, replace pressure switch -F1-.
If LED does not light up:
–  Start engine and increase engine speed slowly. between 0.3... 0.7 bar, the LED must light-up. If not, replace the oil pressure switch.
–  Increase engine speed further. At 2000 rpm and an oil temperature of 80 °C the oil pressure should be at least 2.0 bar.
At higher engine speed, oil pressure must not exceed 7.0 bar.
Tightening torque: oil pressure switch: 20 Nm
  V17-0540

Engine cooling > < Oil filter, oil pressure switch