Image available on the official notice.
Passenger cars (Mercedes-Benz S500 4MATIC and 4 other models) - Repair
Official notice
28 Sept 2023
Last checked
27 Oct 2026
An official CAA Japan notice concerns Passenger cars (Mercedes-Benz S500 4MATIC and 4 other models) - Repair. Electrical equipment (wiring) defect. ■ Defective part (component name): Electrical equipment (wiring). ■ Description and cause of the structure, equipment or performance considered noncompliant with standards: Due to improper assembly during manufacturing, some nuts at the wiring terminal points inside the main fuse box in the engine compartment were not tightened to the specified torque. Consequently, vibrations during driving or other factors may loosen these nuts, interrupting the power supply and making the vehicle unable to be driven. Increased electrical resistance may also generate heat that melts surrounding components and, in the worst case, causes a fire. Published 2023-09-28.
What to do now
(Recall notification number) 外-3687 ■ Corrective measures: On all vehicles, check the nuts inside the main fuse box for looseness. If loose, inspect the contact surfaces of the ground wiring and nuts, and retighten to the specified torque. If the contact surfaces are damaged or surrounding components have melted, replace the related components with new ones.
Units affected
980
Recall number
外-3687
Official notice
2023-09-28
The hazard
The hazard
Electrical equipment (wiring) defect. ■ Defective part (component name): Electrical equipment (wiring). ■ Description and cause of the structure, equipment or performance considered noncompliant with standards: Due to improper assembly during manufacturing, some nuts at the wiring terminal points inside the main fuse box in the engine compartment were not tightened to the specified torque. Consequently, vibrations during driving or other factors may loosen these nuts, interrupting the power supply and making the vehicle unable to be driven. Increased electrical resistance may also generate heat that melts surrounding components and, in the worst case, causes 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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Turn on automatic VIN checksAffected products
Affected products
Product 1
Units affected
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
Units affected
Source tier
Documents, notices & source
See the official notice and source documents for full details.
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