BMW — recall

Automotive · Japan · 2025-06-05

宝马 car starter generator B terminal fixing nuts for B+ cable may be loose

Country	Japan
Category	Automotive
Published	2025-06-05
Manufacturer	BMW Japan Corp.
Models affected	BMW X3 20d xDrive and others
Units affected	4
Defect	Due to improper manufacturing management at the B terminal of the starter generator, some fixing nuts for the B+ cable may not have been tightened to the specified torque. As a result, due to vibrations during driving, the nut may loosen and the connection may become loose, increasing resistance, causing the B terminal to abnormally overheat and the warning light to illuminate, potentially leading to a fire in the worst case. Alternatively, the engine may stop during driving, rendering the vehicle inoperable.
Recall number	外-4020
Official notice	View source ↗

What this means for sellers

Likely platform / channel actions	OEMs/dealers will run the remedy (repair, replace or refund); component suppliers in the chain may face traceback.
Self-check for comparable products	Check your comparable products' design, materials and QC records against the defect described here.
Rules & standards likely involved	the destination market's product-safety rules and mandatory standards

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