volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Removing and installing oil pressure switchF1 > < Checking oil pressure
Checking oil pressure switch
   
Checking oil pressure switch
Special tools and workshop equipment required
t  Oil pressure tester -V.A.G 1342-
t  Voltage tester -V.A.G 1527 B-
t  Auxiliary measuring set -V.A.G 1594 C-

Test prerequisites
l  Oil level OK, checking → Chapter
l  Engine oil temperature at least 80 °C (radiator fan must have run once)
  Note
Functional check and repair of the optical and acoustic oil pressure warning: → Current flow diagrams, Electrical fault finding and Fitting locations
–  Remove oil pressure switch -F1- → Chapter.
   
–  Connect oil pressure tester -V.A.G 1342- to hole for oil pressure switch.
–  Screw oil pressure switch -F1--item 2- into hole in oil pressure tester.
–  Connect brown line -1- of oil pressure tester to earth (–).
–  Connect voltage tester -V.A.G 1527 B- to battery positive (+) and oil pressure switch -F1- using cables from auxiliary test set -V.A.G 1594 C-.
l  LED should not light up.
  Note
If LED lights up now, replace oil pressure switch -F1-.
–  Start engine.
  Note
Observe oil pressure tester and LED while starting, as switching point of oil pressure switch may already be exceeded when starting.
l  LED should light up at 0.3…0.6 bar.
–  If LED does not light up, replace oil pressure switch -F1- → Chapter.
  V17-0540

Removing and installing oil pressure switchF1 > < Checking oil pressure