SEAT 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

Test conditions

• ● Engine oil level OK, checking
• ● Engine oil temperature at least 80 °C (radiator fan must have run once)

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 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 auxiliary cables from V.A.G 1594 A to battery positive (+) and oil pressure switch.
      LED must not light up.

If the LED lights up:

• ‒ Renew 1.4 bar oil pressure switch (F1) .

If the LED does not light up:

• ‒ Start engine and run at idling speed.
  At
      1.2...1.6 bar pressure
  the LED must light up; otherwise renew 1.4 bar oil pressure switch (F1).
• ‒ Increase engine speed further.
  At 2000 rpm and an oil temperature of 80 °C, the oil pressure should be between 2.7 ... 4.5 bar.

At higher engine speeds the oil pressure must not exceed
    7.0 bar

If the specifications are not obtained:

• ‒ Rectify mechanical damage, e.g. bearing damage.
• ‒ Replace oil filter bracket with pressure relief valve => Page 17-10, item 14 or replace oil pump.

If the specification is exceeded:

• ‒ Check oil galleries.
• ‒ If necessary, replace oil filter bracket with pressure relief valve
  => Page 17-10, item 14