Please see enclosed oil analysis on my 2015 C400 4MATIC.
I had this done to confirm that Mercedes suggested maintenance schedule is appropriate for engine longevity. The oil analysis was performed at 9,000 miles - just before I plan to have the second service performed (service B-1). Those miles included both highway at speeds at 80mph for 2hours at a time, as well as short 1 mile or less trips including middle of winter in northern Maine with engine start up in the middle of the night at -35F routinely, sometimes 3-4 times in one night (I work as a physician at a local hospital and go back and forth many times when I am on call). I had service A-1 performed at about 9,500 miles. The car has about 18,500 miles on it currently. I plan to keep the car as long as I can and to do so, I plan to follow the maintenance schedule of Mercedes exactly as suggested. Any thoughts on the oil analysis?

 

Excellent analysis results. Don't worry about iron. To be expected during break in. Benz change intervals are conservative. This car was filled with Mobil1. No break in oil as used by some plants. Do not change early.