The FD04 was used until the Fittipaldi F5 was ready. The season started at the 1977 Argentine Grand Prix. Fittipaldi finished fourth and Hoffmann retired with engine failure. At Brazil, Fittipaldi finished fourth and Hoffmann seventh. Fittipaldi finished tenth at the 1977 South African Grand Prix, fifth at United States West and 14th at the 1977 Spanish Grand Prix. Fittipaldi retired with engine failure at Monaco then used the F5 in Belgian The FD04 was raced once more, by Fittipaldi at the Swedish Grand Prix where he finished 18th. The FD04 was replaced by the Fittipaldi F5 from the French Grand Prix onwards.