I don't know about the E70, but for the E53 and E46 BMW also has a "low mileage" oil change recommendation of 12 months. That is, you change the oil when indicated or every 12 months, whichever comes first. If you get a low mileage oil change then the dealer does not reset the service lights, so you get another change when indicated by the computer. The low mileage oil change is included under the free maintenance but is not well advertised. Check with your dealer to see if this recommendation holds for the E70.