2000 BMW 323Ci Q&A

2000 BMW 323Ci Question: loss of engine oil??

every 3500 km i have a loss of 500 ml engine oil.why? -
Answer 1
If you don't see any external oil leaks, then you could have worn valve guides or worn piston rings. There are other possibilities too, but can you see any smoke from the engine? If so, when does it occur? -