BMW has expanded its ongoing recall to include a significantly larger number of vehicles due to a persistent fire risk originating from faulty starter motors. This broadened recall now impacts more than 340,000 vehicles across the United States. The core issue lies with starter motor relays that are susceptible to moisture intrusion, leading to corrosion, overheating, and potential short circuits. Alarmingly, these incidents can occur several hours after a vehicle has been parked, prompting BMW to urge owners to park their affected cars away from garages and buildings until necessary repairs are completed by authorized dealerships. While the fix will be provided free of charge, owners face a waiting period as replacement parts are not yet readily available.

Initially, BMW launched a recall in late September for approximately 196,000 vehicles. This first wave included 2019-2021 BMW 330i sedans, 2019-2022 Z4 roadsters, 2020-2022 530i, X3, and X4 models, as well as 2021-2022 430i and its convertible variant, and 2022 BMW 230i models. Even some Toyota Supra models were included due to their shared components with BMW.

The root cause of the problem is the ingress of moisture into the starter motor units. This moisture can cause the starter relay to corrode, resulting in overheating and ultimately a short circuit. A critical concern for owners is the delayed nature of the fire hazard; vehicles may ignite hours after being turned off and parked. Consequently, BMW strongly advised owners to avoid parking affected vehicles inside garages or close to structures until the necessary repairs could be carried out.

Despite the initial recall, BMW's starter motor problems were far from resolved. The company subsequently announced a second recall, adding more than 145,000 vehicles to the list, all suffering from the identical starter motor fire risk. This expanded recall specifically targets 2020 model year 340i sedans, along with additional X7 and X5 SUVs. The cumulative effect of these recalls means a substantial portion of BMW's fleet is now under scrutiny.

The combined recalls now affect over 340,000 vehicles in the United States alone. BMW has identified that this issue impacts nearly all models manufactured between September 2015 and September 2021, with the only exceptions being certain compact models and M performance variants that utilized different suppliers for their starter components.

For BMW owners, the immediate priority is to verify if their vehicle is part of this recall. Information regarding affected vehicles is available through BMW's official channels. Once confirmed, BMW will facilitate the replacement of the defective starter motor, and in some cases, a new battery may also be installed. These repairs will be performed at no cost through authorized dealerships. However, a significant challenge remains: the necessary replacement parts are not yet in stock, meaning owners must wait for parts availability before scheduling their service appointments. Until then, adhering to BMW's safety recommendations to park vehicles outdoors and away from other vehicles and structures is crucial to mitigate potential risks.