SEAT Workshop Service and Repair Manuals > Leon Mk1 > Power unit | 4-cyl. injection engine (1.6 l engine) | Engine lubrication | Lubrication system components: remove and install | Oil pressure and oil pressure switch: check

Oil pressure and oil pressure switch: check

Special tools and workshop equipment required

t	Oil checker pressure gauge -V.A.G 1342-

t	Diode lamp -V.A.G 1527 B-

t	Auxiliary measuring equipment -V.A.G 1594 A-

Note!

Operation inspection and repair of visual and acoustic oil pressure indicators: → Current flow diagrams, Electrical fault finding and Fitting locations

Checking process

–	Remove the 0.5 bar oil pressure switch (green insulation) and screw it into the checker.

–	Screw the checker into the cylinder head, at the site of the oil pressure switch.

–	Ground the brown cable of the checker (-).

–	Using auxiliary cables -V.A.G 1594 A-, connect diode lamp -V.A.G 1527 B- to the positive battery terminal (+) and to the oil pressure switch. The lamp should not flash.

–	If the diode flashes, renew the 0.5 bar oil pressure switch.

If the lamp does not flash:

–	Start up the engine and slowly rev up.

Between 0.3...0.6 bar of pressure the lamp should flash. If not, renew the 0.5 bar oil pressure switch.

–	Continue to rev up. At 2000 rpm, with the oil at a temperature of 80 °C, the oil pressure should be at a minimum of 2.0 bar.

Marks on the dipstick

1 -	Maximum mark

2 -	Minimum mark

a -	Area between the upper edge of the area marked and maximum mark: oil must not be topped up.

b -	The level is in the area marked: oil need not be topped up.

c -	Area between the minimum mark and the lower edge of the area marked: oil must be topped up with a maximum of 0.5 l.

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