Volkswagen Golf Quiz
4- cylinder injection engine(1.4 1 direct inction. turbocharger)

Checking oil pressure

In this manual: 4- cylinder injection engine(1.4 1 direct inction. turbocharger)
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~2min read

Special tools and workshop equipment required

Oil pressure tester -V.A.G 1342-

Procedure

Oil level OK: checking → Booklet.

Engine oil temperature at least 80 °C.

  • Remove oil pressure switch for reduced oil pressure -F378- → Chapter.
  • Screw oil pressure tester -V.A.G 1342- into hole for oil pressure switch.
  • Screw oil pressure switch for reduced oil pressure -F378- into hole in oil pressure tester -V.A.G 1342- to seal it.
  • Start engine.

Check oil pressure at idling and at 2000 rpm

Oil pressure at idling speed: at least 0.6 bar.

Minimum oil pressure at 2,000 rpm: 1.5 bar.

  • Switch off engine.

Check oil pressure at 3,800 rpm

  • Remove electrical connection from oil pressure control valve -N428- → Anchor.
  • Start engine.
  • Increase engine revs to 3800 rpm and read off oil pressure on the oil pressure tester -V.A.G 1342-.

Minimum oil pressure at 3800 rpm: 2.8 bar.

If specification is not attained:

  • Connect electrical connection to oil pressure control valve -N428- → Anchor.
  • Interrogate the engine control unit event memory and delete all event entries → Vehicle diagnostic tester.
  • Check valve for oil pressure control -N428- with → vehicle diagnostic tester.
Note Mechanical damage, e.g. to bearings, could also be the cause for oil pressure being too low.

If no fault is found:

  • Renew oil pump → Chapter.

Check oil pressure switch for reduced oil pressure -F378- (brown):

  • Switch off ignition.
Checking oil pressure
  • Connect brown wire of tester to earth (-).
  • Connect voltage tester -V.A.G 1527B- to battery positive (+) and oil pressure switch for reduced oil pressure -F378- (brown) using cables from auxiliary test set -V.A.G 1594C-.

LED must not light up.

  • If LED lights up, renew oil pressure switch for reduced oil pressure -F378-.

If LED does not light up:

  • Start engine: At 0.3…0.6 bar the LED must light up, otherwise renew oil pressure switch.

Check oil pressure switch -F1- (blue):

  • Stop engine.
  • Connect voltage tester -V.A.G 1527B- to battery positive (+) and oil pressure switch -F1- (blue) using cables from auxiliary test set -V.A.G 1594C-.

LED must not light up.

  • If LED lights up, renew oil pressure switch oil pressure switch -F1-.

If LED does not light up:

  • Remove electrical connection from oil pressure control valve -N428- → Anchor.
  • Start engine and increase rpm: At pressure of 2.15…2.95 bar LED must light up, otherwise renew oil pressure switch.
  • Connect electrical connection to oil pressure control valve -N428- → Anchor.
  • Install oil pressure switch for reduced oil pressure -F378- → Chapter.
  • Interrogate the engine control unit event memory and delete all event entries → Vehicle diagnostic tester.

Specified torques

→ Chapter „Assembly overview - oil filter/oil pressure switch“
Checking oil pressure

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