BMW has announced a voluntary recall for the new generation 4-Series Convertible in the United States over an airbag issue.

In an official document, the National Highway Traffic Safety Administration (NHTSA) explains that the head-thorax airbag may not deploy as intended in the event of a side impact.

The automaker still doesn’t know what causes the problem that affects a total of 1,850 units of the 430i and M440i, built from October 12, 2020 to March 4, 2021. They are unaware of any accidents or injuries related to this defect and state that all cars are still in dealer lots.

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The faulty airbag situation was discovered in mid-January during a side impact pole test. Almost two months later, another crash test was conducted and the airbag again did not deploy as intended. On March 8, they decided to conduct a voluntary recall for U.S. market vehicles, “in an abundance of caution”.

Unveiled last fall, the 2021 4-Series Convertible features a soft top instead of a folding hard top like its predecessor. This reduces weight, provides a lower center of gravity that enhances handling and improves cargo space.

In the United States, it is offered in two versions: the 430i and M440i. Pricing starts at $53,100 for the former, which has a 255 HP and 295 lb-ft (400 Nm) 2.0-liter turbo-four. The M440i is offered from $64,000 and is powered by a 3.0-liter turbocharged straight-six producing 382 HP and 369 lb-ft (500 Nm).

Euro-spec model pictured above