- Germany’s transport agency has issued a recall for 219 AMG Ones due to missing pinlocks.
- The affected cars may leak hydraulic fluid near hot engine components, increasing fire risk.
- The recall comes just three weeks after an AMG One was destroyed in a fire incident.
Even for a car costing nearly $3 million, things can still go surprisingly sideways. With a Formula 1-derived turbocharged hybrid powertrain, the Mercedes-AMG One stands out as one of the most complex hypercars ever put into production, and also one of the quickest.
Still, after years of development and the combined brainpower of some of the sharpest minds in automotive engineering, the car is now being recalled over a surprisingly simple problem that could lead to a very costly, very flammable situation. The cause? A missing pinlock on a hydraulic line.
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The recall was first announced in Germany earlier this week by the Federal Motor Transport Authority (KBA) and reveals that a pinlock is missing on a hydraulic line for the active rear spoiler. Given all the trouble AMG had in getting the 1.6-liter turbocharged hybrid powertrain road-ready, one may have suspected it would be the part most prone to a fire-related issue. Nope, it’s the absolutely massive wing.
It’s understood that the missing lock means hydraulic fluid can leak from the line onto hot components around the engine, potentially causing a fire. In total, 219 examples of the F1-powered hypercar are being recalled, all of which were manufactured between December 12, 2022, and May 9, 2025.
Mercedes-AMG is building just 275 examples of the One; of the 219 that have been recalled, 183 reside in Germany. The carmaker is reportedly aware of one known incident related to the fault that resulted in property damage or personal injury.
If there’s anything resembling good news here, it’s that the solution is relatively simple. Mercedes-AMG will inspect affected cars to determine whether the correct pinlock is installed. If it isn’t, a technician will install one. No elaborate teardown needed.
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The One endured an infamously long gestation period. It was first unveiled as a concept in 2017, dubbed the Project One, but was delayed multiple times due to issues in getting the Formula 1 engine to work on the street. Mercedes-AMG then went on to disappoint potential buyers in the US by confirming the One would not be homologated to comply with local regulations.
Earlier this month, a black example was destroyed by a fire in Germany. No official cause for the blaze has been released, but it is not believed to have been caused by the hydraulic line fault.
