Image available on the official notice.
Passenger cars (Mercedes-Benz C200, C200 4MATIC, C200 Station Wagon) - Repair
Official notice
20 Aug 2021
Last checked
27 Oct 2026
An official CAA Japan notice concerns Passenger cars (Mercedes-Benz C200, C200 4MATIC, C200 Station Wagon) - Repair. Electrical equipment defect (alternator diodes). ■ Defective component (part name): Electrical equipment (alternator diodes). ■ Condition and cause of the structure, equipment or performance deemed noncompliant with standards: In alternators fitted to 4-cylinder gasoline engines, inappropriate power generation control at idle may cause the rectifier diodes to suffer heat damage, causing warning lights to illuminate, inadequate charging and engine stalling. Furthermore, if multiple diodes in a particular combination are damaged and short-circuit, a large current may flow through the alternator, causing it to overheat and melt surrounding components. In the worst case, this could result in a fire. Published 2021-08-20.
What to do now
(Recall) 外-3269 ■ Corrective measures: Inspect the alternator in all vehicles. If the diodes are damaged, replace the alternator with an improved part. If the diodes are not damaged, rewrite the engine control unit's control program with a corrected program.
Recall number
外-3269
Official notice
2021-08-20
The hazard
The hazard
Electrical equipment defect (alternator diodes). ■ Defective component (part name): Electrical equipment (alternator diodes). ■ Condition and cause of the structure, equipment or performance deemed noncompliant with standards: In alternators fitted to 4-cylinder gasoline engines, inappropriate power generation control at idle may cause the rectifier diodes to suffer heat damage, causing warning lights to illuminate, inadequate charging and engine stalling. Furthermore, if multiple diodes in a particular combination are damaged and short-circuit, a large current may flow through the alternator, causing it to overheat and melt surrounding components. In the worst case, this could result in a fire.
How to check if you're affected
How to check if you're affected
Compare the product name and identifiers below with the item you own. Check the official notice for the affected products and next steps.
Recall Numbers
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Affected products
Product 1
Hazard
Where it was sold
Where it was sold
Retailer information is not currently available in RecallScope. Check the official notice for distribution details.
Location 1
Affected area 1
Company & contacts
Company & contacts
Brand: Mercedes-Benz. Contact: メルセデス・ベンツ日本株式会社. Phone 0120-086-880.
Source & status
Source & status
Recall details
Recall details
Recall number
Event id
Source tier
Documents, notices & source
See the official notice and source documents for full details.
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