FIA steps in as Mercedes engine row explodes before 2026 season

February 19, 2026 Aksel Kryhlmand

Formula 1’s governing body is preparing a regulatory response after concerns surfaced about Mercedes’ 2026 engine project.

According to an FIA statement referenced in social media discussions this week, the organization has submitted a proposal to introduce an additional engine test during the summer break of the 2026 season. The proposal follows complaints from rival manufacturers who have questioned whether the Mercedes power unit fully complies with upcoming technical regulations.

The issue has circulated widely in the paddock during pre-season preparations, becoming one of the most closely watched technical debates ahead of the regulation overhaul.

Four teams set to use mercedes power

The controversy carries broader implications because four teams are scheduled to run Mercedes engines in 2026.

The teams that are expected to use Mercedes power units next season are Mercedes, McLaren, Williams and Alpine.

If the FIA ultimately determines that changes or clarifications are required, any ruling could influence a significant portion of the grid. With new engine regulations designed to reshape performance balances, even minor technical adjustments may alter the competitive order.

Proposed summer break engine review

Under the plan submitted by the FIA, the additional test would take place during the summer shutdown period. Traditionally, this break allows teams to pause development while regulators conduct oversight and compliance checks.

While the FIA has not publicly detailed the specific parameters of the proposed test, the timing suggests an effort to address concerns without disrupting the opening stretch of the championship calendar.

The 2026 regulations represent one of the most substantial engine rule changes in recent years, placing greater emphasis on electrical power and sustainability components. That shift has intensified scrutiny of every manufacturer’s design approach.

Regulatory implications for the 2026 grid

The broader significance of the dispute lies in its potential impact on competitive fairness. If the FIA moves forward with the additional test, it would signal a proactive attempt to ensure parity under the new framework.

For Mercedes and its customer teams, clarity from the governing body could either reinforce confidence in the design or require technical adjustments before the season progresses too far.

At this stage, the proposal remains under review, and no final decision has been announced.

Sources: FIA statement