Lamborghini has issued a recall for a single 2021 Aventador SVJ Roadster in the United States.

A recall notice published by the National Highway Traffic Safety Administration (NHTSA) reveals that the screws used on the connection of the heat exchanger oil lines may not have been properly torqued during the assembly process. As such, the oil lines can detach and leak oil which could contact hot components and increase the risk of a fire.

Lamborghini began its investigation in September after a field report of a fire issue due to oil leaked from one connection of the heat exchanger oil lines on an Aventador SVJ. It subsequently determined that an issue on the production line meant there was no confirmation if the torque value at the screws of the heat exchanger oil lines met production specifications.

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The single Aventador SVJ Roadster involved in the U.S. recall was built on March 15, 2021, while a further three examples in overseas markets are also being recalled.

The Italian automaker will notify the owner of the U.S. vehicle and instruct him to arrange an appointment with an authorized Lamborghini dealer. The technicians will then check the mounting of the heat exchanger feed and return oil lines and rework it if necessary and free of charge.

A change in the production line means the issue will not impact any future Aventadors.

This isn’t the first time the Aventador SVJ has been recalled. Earlier this year, Lamborghini recalled 221 examples after it determined that the engine cover could open while the car was being driven.