Mercedes executive director Toto Wolff insists that his team is not resting on past success ahead of next weekend's Chinese Grand Prix.
Nico Rosberg and Michael Schumacher completed a front row lockout for Mercedes at the Shanghai International Circuit in 2012, with Rosberg going on to win the race. Rosberg's win remains Mercedes's only victory since their comeback at the start of 2010 but the German has shown strong form at the circuit, having led the race in 2010 and 2011.
Team-mate Lewis Hamilton is the only repeat winner in China, having claimed victory in 2008 and 2011 when racing for McLaren.
"One year on from Nico's win, a lot of people will be asking whether this is something our team can repeat in 2013," said Wolff.
"But like they say, yesterday's home runs don't win today's games, and that's definitely true for us. We start again from zero this year and need to work hard to adapt the car to suit the circuit and the tyre compounds we have available, in the conditions that we find on track next weekend. Then we will see where we stand relative to the competition."
Team principal Ross Brawn has urged Mercedes to maintain their strong form, having taken a podium finish at the Malaysian Grand Prix.
"Our season has started well, perhaps better than we expected, however we're fully aware that there is still a gap to close and that we must keep up the pace of development.," said Brawn.
"A lot of hard work has taken place at our factories over the last two weeks to do just that and I look forward to seeing how that translates to track performance."