Hi,
Oil consumption is measured in mileage, not time. Mine currently eats it's litre per about 3000 km. The engine works perfectly (feels better than before
), no signs of degradation (smoking, loss of power, anything unusual). When having the car serviced a few months ago, I spoke to a BMW official mechanic and he told me my oil consumption was absolutely fine. If I remember correctly
, he said when it fell below 1000 km. per litre it would be time to start worrying (here's my quick find to prove it:
https://thecarinvestor.com/do-bmws-burn-oil/).
Regarding coolant leaks, it's a typical issue.
It's fine they found something, but you might need to be aware of a not so obvious leak there can be:
https://f20.1addicts.com/forums/show...&postcount=363.
Regarding repair suggestions. They should show/prove valve cover/seals leak, I guess.
I don't think multi-belt has anything to do with oil consumption but it can be bad. Regarding pricing. It's country-specific.
Regarding what I'd do. I'd act according to how much money I could spend: if I could afford the total revision (being quite sure it won't be a waste) I wouldn't put if off. Or I'd consider a new car.
It's just the garage might want to "milk" you: I would find it suspicious they offer diagnostics and repair included (repair cost can vary a lot, depending).
