Following the Portuguese Grand Prix rumours circulated that Wolff was looking at promoting George Russell in place of the Finn before the end of the season unless performances improved.
Wolff, though, has now reiterated Bottas would remain a Mercedes driver for the full season.
"Unless he gets the flu and can't drive, he is going to be in the car," said Wolff, speaking to Sky Sports F1. "We see no reason to change. It is [Red Bull] that like to play musical chairs. No change expected."
When asked if the definitive answer showed a clear difference in philosophy from championship rival Red Bull, who have historically demoted drivers mid-season, Wolff added: "It depends on the mentality.
"If you are not happy with your wife and you start to look for other ones, it is not going to improve the relationship. I try to work on the relationship with my driver and achieve the best results with him before I start to flirt with somebody else."
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