SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 3 cylinder Fuel-injection engine (1.2 l) | Engine lubrication | Parts of lubrication system | Oil pressure and oil pressure switch: checking

Oil pressure and oil pressure switch: checking

t	Checking → Anchor

Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.

Special tools and workshop equipment required

t	Oil pressure tester -V.A.G 1342-

t	Pressure tester -V.A.G 1527 B-

t	Auxiliary cable kit -V.A.G 1594C-

Note

Test sequence

–	Remove oil pressure switch -F1- 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 the LED lights up, replace 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 2000 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.

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