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Mercedes-Benz — recall

Automotive · Japan · 2025-08-21

Origin: ドイツ連邦共和国

Mercedes-Benz engine control unit diagnostic program inappropriate, insufficient tolerance for sensor issues

Country	Japan
Category	Automotive
Published	2025-08-21
Country of origin	ドイツ連邦共和国
Manufacturer	Mercedes-Benz Japan LLC
Models affected	E220d, E220d Station Wagon, E220d 4MATIC Station Wagon
Units affected	4560
Defect	In the engine control unit, due to an inappropriate diagnostic program, when the air flow meter or low-pressure exhaust gas recirculation valve fails, it may not be controlled correctly, and the engine warning light (MIL) may not illuminate correctly. As a result, if control is not performed when the air flow meter or low-pressure exhaust gas recirculation valve fails, in the worst case, exhaust gas emissions may exceed standard values.
Component	Engine (Engine Control Unit)
Remedy	For all vehicles, rewrite the control program of the engine control unit with the updated control program.
Recall number	外-4055
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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