The dealer where my son bought his car REFUSED to change the oil until the
light bar indicated so. It was about 13,000 miles and about 18 months on
the brand new engine. I hated to see that. I fail to see where there is
any advantage to this. If not the miles, what about 18 months or blowby ,
acid, and other junk that builds up in the oil.
And remember, new BMWs come with all service included but they will not give
you an extra inch.
I have never heard of a dealer denying an oil change at any other
time except when the SI indicated unless you wanted it for free. Some
dealers will give you some leeway. I believe MINI will give you +/-
100 miles. Judging from the experience when I bought my 98 ti the
dealer took care of oil changes and Inspections even if I was early
when I explained to the service advisor that I would be out of town
when the car was due for service.