Their 2-1 victory keeps Pep Guardiola's team at the top of the table.
West Ham suffered their first top-flight loss at their new home, beaten 4-2 by Watford.
Tottenham were 4-0 winners at Stoke, while north London rivals Arsenal scored a late penalty in winning 2-1 at home to Southampton.
Crystal Palace have their first league win of the season after getting past Middlesbrough 2-1 at the Riverside, while Burnley drew 1-1 with Hull, and Bournemouth won 1-0 against West Brom.
