Originally Posted by dzenno
You also may have an oil leak somewhere..what's the mileage on the car? Check the front of the engine, see if you can spot a leak coming down from the oil filter housing down the front of the engine block...oil filter housing gaskets are known to go on this and earlier bmws
I already changed the 2 gaskets on the oil filter, there was some leak...
But it didnt help!
And again, I have to add 1 litre per 300-400 km
such a number can not be due to external leakage