Daniel Ricciardo suffers shock disqualification in Red Bull heartbreak

Daniel Ricciardo's first race for Red Bull Racing in 2014 should have been a dream debut. However, it instead became a heartbreak tale.

The Australian qualified second at his home grand prix, ahead of four-time world champion team-mate Sebastian Vettel, and held that position throughout the race to claim what appeared to be his maiden F1 podium. 

But hours later, that achievement was stripped away.

Stewards disqualified Ricciardo after discovering his car had consistently exceeded the newly introduced 100 kilograms per hour fuel flow limit throughout the race. The infringement was detected during post-race scrutineering, approximately four hours after he stood on the podium at Albert Park.

Red Bull's troubles began earlier in the weekend when their fuel flow sensor provided inconsistent readings during Friday practice. The team replaced it on Saturday, but when the replacement also proved unreliable, they reverted to the original unit.

Faced with what they considered faulty equipment, Red Bull made a fateful decision, relying on their own internal fuel calculations rather than the FIA-approved sensor.

The situation deteriorated further during the race when the FIA issued a directive to Red Bull to reduce its fuel flow rate to compensate for the irregularities. The team ignored the instruction, a decision that would prove costly.

Red Bull appealed the stewards' verdict, arguing that allowances should be made for the sensor's unreliability and insisting they had never exceeded the 100kg/hour threshold based on their calculations. 

The team stated they were "confident the fuel supplied to the engine is in full compliance with the regulations."

The International Court of Appeal heard evidence in Paris on April 14 but upheld the disqualification. The FIA countered that provisions had been made for sensor inconsistencies and that using alternative measurement methods without express permission constituted a regulatory breach in itself.

Ricciardo lost 18 championship points, Kevin Magnussen was elevated to second place on his F1 debut, and Jenson Button inherited third, securing his 50th and final career podium.