i have just had an oil and filter change on my car at a BMW dealership. they left the filter housing and the air duct off, therefore allowing unfiltered air into my engine, i didnt discover this until i had driven 530 miles could it have caused engine damage
520D
in BMW 5 Series Forum
Posted
i have just had an oil and filter change on my car at a BMW dealership. they left the filter housing and the air duct off, therefore allowing unfiltered air into my engine, i didnt discover this until i had driven 530 miles could it have caused engine damage