Raikkonen fastest in last practice, Vettel with engine problem
Ferrari's Kimi Raikkonen was fastest in the third and final practice Saturday for the Malaysian Grand Prix, with championship leader Lewis Hamilton in a Mercedes only fifth.
Vettel was second, 0.162 seconds behind team-mate Raikkonen but was called into the pits four minutes before then of the session with an engine problem.
Daniel Ricciardo in a Red Bull was third on the Sepang International Circuit ahead of Valtteri Bottas in a Mercedes.
Hamilton has a 28-point lead over Vettel in the Formula One drivers' standings ahead of Sunday's race. Qualifying later will determine grid positions.