If the engine speed drops below 2000 rpm, the oil pressure drops at the same time and at a pressure below 0.3 bar, the oil pressure warning light flashes on the instrument panel. At engine speeds above 2000 rpm, the oil pressure should be at least 1.8 bar (diesel engine 0.9 bar), otherwise, the warning light flashes again and the sound signal sounds.
If the oil pressure warning light flashes while driving and is accompanied by a beep, this may have the following causes:
- 1. Oil level too low.
- 2. The wiring from the transmitter to the warning light is faulty.
- 3. The oil pump is faulty.
- 4. The crankshaft main bearings have failed.
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1. First of all, you must immediately turn off the engine and check the oil level, and top up if necessary. Then start the engine and let it idle, the warning light should not blink. Raise the speed above 2000 rpm, the light should not blink and the buzzer should be silent. You can continue driving.
2. If the oil level is normal and there is no other way to check it at the moment, do not continue driving under any circumstances, but tow the car and then check the oil pressure.
3. If the oil pressure is sufficient, check both oil pressure sensors and the wiring according to the wiring diagram. If no faults are found, replace the oil pressure control relay.
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