Volkswagen Workshop Service and Repair Manuals

Special tools, workshop equipment, test and measuring appliances and auxiliary items required

• ◆ V.A.G 1342 Oil pressure tester
• ◆ V.A.G 1527 B Diode test lamp
• ◆ V.A.G 1594 A Adapter set

Note:

Functional check and servicing the optical and acoustic oil pressure warning:

=> Current flow diagrams, Electrical fault finding and Fitting locations binder

Test sequence

• ‒ → Remove oil pressure switch (F1) and screw into tester.
• ‒ Screw tester into the oil filter bracket 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 to battery positive (+) and oil pressure switch.
• ‒ Start engine and increase speed slowly.
  At
      0.55...0.85 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 5.8 bar. If necessary, renew oil filter bracket.