McLaren's Lewis Hamilton will be given a five-place grid penalty for the Chinese Grand Prix after the team changed his gearbox.
The 2008 world champion has started from pole position and finished third in both races this season.
Hamilton is second in the drivers' championship, five points behind Ferrari's Fernando Alonso.
"It doesn't alter my approach. I still have to qualify as high as possible," said Hamilton, 27.
"I won from third last year so I'll try to win from further back. I'll have to try to start sixth if possible or somewhere close to that."
McLaren have not revealed details of the gearbox problems that caused them to change it.