It also accused Google of stopping websites from showing adverts from the search engine's competitors.
And it strengthened an existing charge that Google favours its own comparison shopping services in search results.
EU Competition Commissioner Margrethe Vestager said Google had no right to limit its rivals.
She said: "Google has come up with many innovative products that have made a difference to our lives. But that doesn't give Google the right to deny other companies the chance to compete and innovate."
