Recalls › Japan › Mercedes-Benz 4AA-177051M; 4AA-177151M; 4AA-118351M; 4AA-11…

Mercedes-Benz 4AA-177051M; 4AA-177151M; 4AA-118351M; 4AA-118651M; 4AA-247751M; 4AA-247651M — recall

Automotive · Japan · 2026-07-30

Origin: ドイツ連邦共和国

Mercedes-Benz transmission control unit inappropriate program, gear stuck in neutral, vehicle loses drive power

Country	Japan
Category	Automotive
Published	2026-07-30
Country of origin	ドイツ連邦共和国
Manufacturer	Mercedes-Benz
Models affected	4AA-177051M; 4AA-177151M; 4AA-118351M; 4AA-118651M; 4AA-247751M; 4AA-247651M
Model year	ﾒﾙｾﾃﾞｽAMG A35; 4MATIC; 4MATIC ｾﾀﾞﾝ; ﾒﾙｾﾃﾞｽAMG; CLA35 4MATIC; ｼｭｰﾃｨﾝｸﾞﾌﾞﾚｰｸ; GLA35 4MATIC; GLB35 4MATIC
Units affected	4414
Defect	In the transmission control unit, due to an inappropriate control program, the gear may become stuck in neutral while driving in 4th gear. This may result in a loss of drive power and the inability to drive the vehicle.
Component	Power transmission system (transmission control unit)
Recall type	Vehicle
Remedy	For all vehicles, the control program of the transmission control unit will be rewritten with the updated control program.
Recall number	外-42200
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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