You need to have a compression and oil pressure test run. Do not drive it to the shop. Have it towed. Running this engine in this condition will do some serious damage. You have zero (0) oil pressure and that is why it is knocking and showing no oil pressure. It may be damaged so badly it needs and overhaul. It all depends on how much you drove it after this happened. If you immediately shut it down there may be very little damage. If you continued to drive then it will have serious damage.
possible low oil
needs engine oil ...
That your engine is not running.
Cold engine knock that goes away after warmup is usually piston slap. Worn pistons worn cylinder bores, wrong oil (too light) on a high mileage engine.
knocking as in spark knock? or engine knock? spark knock is adjusted through a knock sensor via ignition timing. eng. knock is due to brg. knock as in low oil pressure or sluge in engine or just a tired motor
Time to change your oil in your engine!
It means your engine needs oil and the engine is having a problem (possibly because someone forgot to check the oil)
lack of oil,faulty oil pressure switch or worn engine
What's your oil pressure like? I'm not asking how much oil you have... is your oil pump able to provide enough oil volume and pressure to allow the engine to run properly? If not, the engine will knock and tear itself apart. Oil pressure will reduce if the engine bearings are worn and the oil leaks out so fast that the oil pump can't keep up.
The lack of oil?!?
on my 05 mercedes c class. the light says engine oil level reduce oil level. what does this mean?
on my 05 mercedes c class. the light says engine oil level reduce oil level. what does this mean?