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Engine cooling > < Installing

Leon Mk1

Checking oil pressure and oil pressure switch
   
Checking oil pressure and oil pressure switch
Special tools and workshop equipment required
t  Oil pressure tester -V.A.G 1342-
t  Diode test lamp -V.A.G 1527 B-
t  Adapter set -V.A.G 1594 A- or -V.A.G 1594 C-

  Note!
Functional check and servicing the optical and acoustic oil pressure warning: → Current flow diagrams, Electrical fault finding and Fitting locations.
Test sequence
   
–  Remove oil pressure switch -F1- and screw into tester.
–  Screw tester into the cylinder head in place of the oil pressure switch.
–  Connect brown wire of tester to earth (-).
–  Connect diode test lamp -V.A.G 1527 B- using aux. cables from -V.A.G 1594 A- or -V.A.G 1594 C- to battery positive (+) and oil pressure switch.
–  If the LED lights up, replace the oil pressure switch -F1-.
–  When the LED does not light up:
–  Start engine and increase speed slowly. At 0.3...0.6 bar the LED must light up, otherwise renew 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 the oil pressure must not exceed 7.0 bar. If necessary, replace the oil pump cover with the discharge valve.
  V17-0540

Engine cooling > < Installing