volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

ABOUT US
Engine oil cooler > < Oil filter, oil pressure switch

Polo Mk5

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  Voltage tester -V.A.G 1527B-
t  Auxiliary measuring set -V.A.G 1594C-
t  24 mm jointed spanner -T40175-

  Note
Functional check and repair of the optical and acoustic oil pressure warning: → Current flow diagrams, Electrical fault finding and Fitting locations
Test procedure
   
–  Pull connector -1- off oil pressure switch.
  N17-10209
–  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, renew oil pressure switch -F1-.
If LED does not light up:
–  Start engine and increase speed slowly. At 0.3 … 0.7 bar the LED must light up, otherwise renew oil pressure switch.
–  Increase engine speed further. At 2,000 rpm and an oil temperature of 80°C the oil pressure should be at least 2.0 bar.
At higher engine speeds, the oil pressure must not exceed 7.0 bar.
Specified torque of oil pressure switch: 20 Nm
  V17-0540

Engine oil cooler > < Oil filter, oil pressure switch