The Spanish giants have never won the tournament since it was revamped in 2005, but are keen to add to their three Intercontinental Cup victories.
"We always try to do our best in every competition we play," said the Brazilian on FIFA's website. "We always want to reach the final and win.
"It's been a while since Real Madrid have played in this tournament - and we're up for it."
European clubs have dominated the Club World Cup, with Milan, Manchester United, Barcelona (twice), Inter and Bayern Munich claiming six of the last seven titles.
However, Marcelo is taking nothing for granted, adding: "Every match is difficult because teams always raise their game when they come up against us. We need to stay grounded and work hard if we want to win.
"We'll be up against teams who have a different mindset to European sides and that could make things difficult for us. We'll be ready for the challenge, though."
