Okay - to clarify.
My D700 has a dirty sensor and I will clean it myself, no problem, regular maintenance.
The D600's are spraying oil on the sensor so cleaning it will only get you a few clean shots.
"After 10,000 actuations - it stops" - What do you do with 10,000 bad images?
I spent three days camping in the field unable to check my images on a computer and returned with 900 wasted shots, 500 miles of travel and $250 pissed away.
These cameras are defective and Nikon is responsible for finding a solution.
In the last two years I have bought 3 D7000's (1good, 2bad), 2 D700's (both good), 1 D800 Bad, tried 4 D600's All Bad. That is 3 out of 10 good products. I have wasted weeks of my time taking test shots, sending cameras back and forth to Nikon, paying postage and insurance. Nikon did fix one bad lens but refused responsibility for anything else and did not fix any of the now well documented problems. I am seriously considering a different system.
If anyone is seriously interested in acquiring my camera and 6 lenses contact me by private message.
16-35 F4, 24-85 VR, 70-200 VRII, 50, 105, 300 primes, filters for all, 1.4 and 1.7 teleconverters, D700, RRS brackets for D700 and D7000, RRS BH-55, Gitzo 3541 XLS, Lowepro Flipside 400 AW,
And a Copperhill Sensor Cleaning Kit
About $10,000 invested in a system that is going downhill. I am very disappointed.