Quote:
Originally Posted by XXX555
Spoke with the BMW service manager today and he confirmed that either the service light had to be on, 24 months passed since no or first oil change, 6500 miles or less in 12 months, or within 1000 miles of the iDrive computer saying service would be due...
He also confirmed that DEF is no longer flush and fill during service, just topped off.
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Thanks for the update.
Another thing I learned recently in a tech bulletin (posted on bimmerfest) was that you should not overfill the def reservoirs as the fluid could overflow and damage some parts. Owners don't have the right tools to know how much to put in so if I had to top off myself for whatever reason, I would play it safe. The more reason to make sure you get a complete fill at service time.