Sebastian Vettel of Aston Martin was disqualified after finishing second in the Hungarian Grand Prix.
Officials were unable to take the mandatory one-liter fuel sample from Vettel’s car after the race.
The move promotes Mercedes’ Lewis Hamilton to second and Ferrari’s Carlos Sainz to third – and brings Hamilton’s lead over Red Bull’s Max Verstappen to eight points.
Aston Martin has announced its intention to appeal this decision.
The FIA governing body said it was possible to take only 0.3 liters from the car and that it was no defense to claim that no performance advantage had been obtained.
F1 rules require teams to ensure that a one-liter sample of fuel can be taken from the car at any time during the event.
Using less fuel can give a performance advantage, as each kilogram of fuel equals an average of about 0.035 seconds per revolution.
Hungarian Grand Prix stewards said: “The team had several opportunities to try to remove the required amount of fuel from the tank, but it was only possible to pump 0.3 liters. “
It is believed that team principal Otmar Szafnauer and technical director Andrew Green said there was 1.44 liters left in the car, but they were unable to extract it.