Image available on the official notice.
Passenger cars (Mercedes-Benz C200 and others) - Repair
Official notice
24 Mar 2021
Last checked
27 Oct 2026
An official CAA Japan notice concerns Passenger cars (Mercedes-Benz C200 and others) - Repair. Defect in the electrical system (48V battery management system). ■ Defective component: Electrical system (48V battery management system). ■ Noncompliant structure, equipment or performance and its cause: ① In the 48V battery management system equipped with a 48V starter-alternator, inappropriate control software may cause synchronization failures with other systems. This may delay engine starting, temporarily prevent the engine from starting without displaying the engine warning light, or cause the engine warning light to remain illuminated even after the engine starts. ② In the 48V battery management system equipped with a 48V starter-alternator, inappropriate control software may prevent the internal switch of the 48V battery from turning on, so that power supply does not begin. As a result, the 48V system may fail to activate, the engine warning light may illuminate, and the engine may fail to start. Published 2021-03-24.
What to do now
(Recall) 外3191 ■ Corrective measures: ①② Reprogram the 48V battery management system on all vehicles with corrected control software.
Official notice
2021-03-24
The hazard
The hazard
Defect in the electrical system (48V battery management system). ■ Defective component: Electrical system (48V battery management system). ■ Noncompliant structure, equipment or performance and its cause: ① In the 48V battery management system equipped with a 48V starter-alternator, inappropriate control software may cause synchronization failures with other systems. This may delay engine starting, temporarily prevent the engine from starting without displaying the engine warning light, or cause the engine warning light to remain illuminated even after the engine starts. ② In the 48V battery management system equipped with a 48V starter-alternator, inappropriate control software may prevent the internal switch of the 48V battery from turning on, so that power supply does not begin. As a result, the 48V system may fail to activate, the engine warning light may illuminate, and the engine may fail to start.
How to check if you're affected
How to check if you're affected
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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
Event id
Source tier
Documents, notices & source
See the official notice and source documents for full details.
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