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Checking oil pressure > < Checking oil pressure and oil pressure switch

Golf Mk4

Checking oil pressure switch
Checking oil pressure switch
Test prerequisites
l  Check engine oil level OK → Fig..
l  Oil pressure warning lamp -K3- must light up for approx. 3 seconds when ignition is switched on.
l  Engine oil temperature at least 80 °C (radiator fan must have run once)
Test procedure
–  Remove centre, left and right insulation trays: → General body repairs, exterior; Rep. gr.50
   
–  Remove oil pressure switch -F1- and screw it into oil pressure tester -V.A.G 1342-.
–  Screw oil pressure tester -V.A.G 1342- into oil filter bracket in place of oil pressure switch using adapter -V.A.G 1342/14-.
  Note
Observe installation position of adapter: the conical connecting piece of the adapter must be screwed into the pressure hose of the tester.
–  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-. LED must not light up.
If the LED lights up:
–  Renew oil pressure switch -F1- → Item.
If LED does not light up:
–  Start engine and run at idling speed, at 1.2…1.6 bar the LED must light up, otherwise renew oil pressure switch -F1- → Item.
  N17-0122

Checking oil pressure > < Checking oil pressure and oil pressure switch