Just thought I would share this, and congradulate Nikon with a well done in customer service.
My recently purchased D600 had delevoped the oil spots on the sensor, at around 2500 shutter count.
A phone call to Nikon and they said no problem post or drop it in and after about 7 to 10 days it would be ready.
Not trusting the post I dropped it off at Nikon at Lidcome and was again told 7 to 10 days. No worries.
Within 24 Hrs they had sent me an email saying it was ready!
Great, jumped in the car and went and picked it up, I thought that they would have just cleaned the sensor, but they have replaced the whole shutter mechanism, as this is where the problem lies.
Fantastic service and very happy to have my camera back before the weekend.
Well done Nikon.