The Chelsea forward knows Oscar, Willian, Ramires and David Luiz from Stamford Bridge and is ready to give away secrets ahead of the World Cup semifinal clash on Tuesday.
Schurrle plays with Oscar, Willian and Ramires at Chelsea, while Luiz has just left the Blues to sign for Paris Saint-Germain and scored a stunning free kick in Brazil's 2-1 quarterfinal victory over Colombia on Friday.
Schurrle admits he has not been in contact with the Brazilian players during the World Cup because they are now ‘rivals’ and will give his Germany teammates tips as they look to book a place in the final.
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"Of course, if somebody asks me how to play against Oscar or David Luiz, I’m here to help," Schurrle said. "We haven’t been in touch during the tournament. We are rivals here so there have not been any text messages.
"For me it will be cool to play against my Brazilian friends from Chelsea."
Germany booked its semifinal spot with a 1-0 win over France at the Maracana on Friday thanks to a first-half header from defender Mats Hummels.
Joachim Low’s side has faced some criticism for the level of its performances during the World Cup but Schurrle believes Germany has proved its winning mentality in the tournament.
He added: "We have quality, it’s not just luck or the DNA of the players. We have had some tight matches, but we have deserved to win every game we have won. That was the case against France as well.
"The best thing about the team is that we win. We fight and give everything we have. We have good players and we win in the end, that’s the most important thing."