Stewards fine Racing Bulls after Lawson's CDS failure halts sessions
Liam Lawson’s Racing Bulls VCARB03 suffered a clutch-disengagement system (CDS) failure during FP1 at the Canadian Grand Prix at Circuit Gilles Villeneuve in Montreal.
Stewards determined a ruptured hydraulic joint caused a hydraulic leak that stopped Lawson’s car and prevented the CDS from operating.
When marshals pressed the exterior CDS button it did not release the clutch.
Marshals were unable to move Lawson’s car for around 15 minutes (Source 1).
Crash.net reported the CDS failure occurred about 10 minutes into the sole practice session.
The session was initially placed under a Virtual Safety Car before being upgraded to a red flag; stewards said the fault forced a red flag rather than a faster recovery under a Virtual Safety Car.
Marshals attempted to push the stationary car and one marshal pressed an on-board camera button instead of the CDS control, actions the stewards criticized.
Stewards described the fault as “a serious matter.”
Stewards found the CDS on Lawson’s car was performing dual roles as both a clutch-disengagement system and an anti-stall function; the FIA Technical Delegate had previously flagged the system performing dual roles.
Racing Bulls had been warned in 2025 about the CDS design (reported by multiple sources).
Stewards fined Racing Bulls €30,000, with two-thirds (€20,000) suspended for 12 months and €10,000 to be paid immediately; Source 1 reported only a €10,000 fine (conflicting reporting noted).
Lawson could not be repaired in time to take part in Sprint Qualifying/Sprint shootout and completed only five laps across FP1 and Sprint qualifying (sources report he missed the Sprint session).
Stewards urged practical marshals’ training to supplement existing FIA recovery guidance, and the FIA said it will work to improve marshal training going forward.
Stewards noted regulations require the CDS to operate even if a car’s primary hydraulic, pneumatic, or electrical systems fail.
The stewards’ decision and reporting emphasized both a technical non-compliance with safety regulations and procedural shortcomings in incident response, prompting enforcement action and recommended follow-up.
