Mercedes-Benz USA has disclosed that a recent problem affects 283 cars intended for the US market, built for the 2022 model year between February 18, 2022, and January 23, 2023. The EQB 300 (183 units) and EQB 350 (100 units) all-wheel-drive variants are among the affected vehicles.
The only front-wheel-drive EQB variant available in the US is the 250+, distinguished by its extended range. Listed as a 2023 model, the EQB 250+ offers up to 245 miles (349 kilometers) of range on a full charge. Meanwhile, the EQB 300 provides 232 miles (373 kilometers) of range, and the EQB 350 offers 221 miles (356 kilometers), all powered by 70.5-kWh batteries.
According to documents from a federal watchdog, the issue stems from the cast material of the spur gear within the front electric drive unit, which may not meet the automaker’s material standards.
This could potentially cause the spur gear to rotate freely from the differential assembly, impacting the function of the park pawl. However, the parking brake remains functional, ensuring vehicle stability.
Initial reports of unusual noises from the front axle prompted Mercedes-Benz AG to investigate further. Following ongoing field monitoring, it was discovered that a failed weld could lead to a park pawl malfunction, prompting the recall.
Mercedes-Benz AG has identified five service reports, field reports, and warranty claims related to this issue. While no property damage or injuries have been reported, dealers will be notified of the recall campaign, with owner notification letters to be mailed by July 9, 2024.