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BMW BMW M5 — recall

Automotive · Japan · 2026-02-09

BMW M5 upper oil pan fastening bolts not tightened to specified torque

Country	Japan
Category	Automotive
Published	2026-02-09
Manufacturer	BMW
Models affected	BMW M5
Units affected	1
Defect	Some bolts fastening the upper oil pan to the crankcase may not have been tightened to the specified torque due to an improper manufacturing process. As a result, due to driving vibrations, these bolts may loosen and fall into the lower oil pan, potentially damaging the oil pump chain, leading to insufficient oil supply to the engine, displaying a check control message, and accelerating wear on the connecting rod bearings and main bearings, causing abnormal noise. If use continues, this could lead to reduced compression function by the connecting rods, abnormal crankshaft rotation causing mis…
Recall number	外4146
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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