But team chief Toto Wolff claims negotiations with Hamilton for an extension of his deal beyond next year are already taking place.
"I am sure something will happen this year," Hamilton confirmed when asked about the talks ahead of the Hungarian grand prix.
"I've made it clear to them that they don't have to worry, I'm not out seeing what else there is for me," he added.
"Mercedes has been my family since I started formula one so I don't see that changing any time soon."
Asked if the specific contract talks have already begun, Hamilton said: "We spoke about having a chat at some stage but I think they're quite relaxed as well, as far as I'm aware."
"I am not concerned about that," Hamilton insisted.
"Ultimately if the team wanted him in the car, that's their decision. I don't have any feelings about it.
"Another German driver? I'm not sure if that's something Mercedes would like. But at the moment I'm here until the end of next year, so it's not going to be any time soon," he added.
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