| Testing oil pressure switch -F1- without removing |
Note | The oil pressure switch -F1- remains installed and only the screw plug of the oil duct at the left of the cylinder head, which is more easily accessible, is unscrewed. |
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| Clean the surroundings and unscrew the screw plug of the oil duct at the left of the cylinder head. |
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| Screw the connection of the oil pressure tester -V.A.G 1342- with positioned gasket into the threaded hole for the screw plug. |
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| Close the hole for the oil pressure switch in the oil pressure tester by means of the removed screw plug of the oil duct with gasket. |
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| Disconnect the plug from the oil pressure switch -F1- at the rear of the cylinder head. |
| Test oil pressure switch -F1- |
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| Connect the voltage tester with the auxiliary cables from the measuring tool set to the oil pressure switch -F1- at the cylinder head and to battery positive (+). |
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| The LED must not light up. |
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| Replace oil pressure switch -F1- → Chapter. |
| If the LED does not light up: |
Note | Observe the testing equipment and the LED while actuating the starter since the switching point of the oil pressure switch -F1- can already be reached when starting up. |
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| At a pressure of 0.03...0.06 MPa (0.3...0.6 bar) the LED should light up. |
| If the LED does not light up: |
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| Replace oil pressure switch -F1- → Chapter. |
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| Oil pressure when engine idling: at least 0,08 MPa (0,8 bar) |
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| Oil pressure at 2000 rpm: min. 0,14 MPa (1,4 bar) |
| If the specified values are not reached, the oil pump is defective. |
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| Oil pressure at a higher engine speed: max. 0,52 MPa (5,2 bar) |
| If the specified value is exceeded, the pressure control valve in the oil pump is defective. |
Note | t
| After testing the oil pressure switch -F1- or after checking the oil pressure, remove the oil pressure tester -V.A.G 1342- and install the screw plug of the oil duct with a new gasket ring. |
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| Tightening torque of plug is 14 Nm. |
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