The Spaniard only arrived in Germany in June of last year but has already been linked with a shock switch to Old Trafford after the Red Devils confirmed the Scot's exit on Tuesday.
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"I'm at Bayern and I signed for three years. I feel that we can still improve," he told reporters.
"I changed my Catalan culture for German and that wasn't easy. And I need time. I still have a job to do, I'm comfortable here and people respect my work. I want to stay here."
Bayern’s press officer subsequently added: "Tell the people in England, no chance!"
Guardiola joins Jurgen Klopp in ruling himself out of the running after the Borussia Dortmund coach insisted he wanted to stay in Dortmund and that his bond with the club was "not breakable".
Goal understands Louis van Gaal is "very keen" to replace Moyes as Manchester United manager with Ryan Giggs having been appointed as interim coach until a permanent replacement is found.