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Mercedes-Benz — recall

Automotive · Japan · 2026-02-18

Origin: ドイツ連邦共和国

Mercedes-Benz engine control unit has inappropriate program, causing catalyst warm-up misfires

Country	Japan
Category	Automotive
Published	2026-02-18
Country of origin	ドイツ連邦共和国
Manufacturer	Mercedes-Benz Japan LLC
Models affected	Mercedes-AMG G63
Units affected	1536
Defect	In the engine control unit, due to an inappropriate control program, misfires may occur in the mode that heats the catalyst for warm-up. As a result, the engine warning light (MIL) illuminates, engine vibration increases due to the stop of fuel injection to the affected cylinder, and in the worst case, exhaust gas values may exceed regulatory limits.
Component	Engine (Engine Control Unit)
Remedy	For all vehicles, the control program of the engine control unit will be rewritten with an improved control program.
Recall number	外-4151
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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