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Passenger cars (Mercedes-Benz Mercedes-AMG S634M Cabriolet and other models) - Repair
Official notice
7 Aug 2020
Last checked
27 Oct 2026
An official CAA Japan notice concerns Passenger cars (Mercedes-Benz Mercedes-AMG S634M Cabriolet and other models) - Repair. Engine control unit control program defect. ■ Defective part (component name): Engine control unit control program. ■ Details and cause of the structure, equipment or performance deemed noncompliant with standards: Due to inappropriate instructions specifying the version to be installed in the vehicle, a control program with incorrect specifications has been installed in the engine control unit. Consequently, noise levels may fail to meet the prescribed limits. Published 2020-08-07.
What to do now
The hazard
The hazard
Engine control unit control program defect. ■ Defective part (component name): Engine control unit control program. ■ Details and cause of the structure, equipment or performance deemed noncompliant with standards: Due to inappropriate instructions specifying the version to be installed in the vehicle, a control program with incorrect specifications has been installed in the engine control unit. Consequently, noise levels may fail to meet the prescribed limits.
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.
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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