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Over-the-air update OTA - 5496434

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeOver-the-air update
NHTSA id11016036
Published by NHTSA2025-03-27
Manufacturer's numberOTA - 5496434
Manufacturer's date2025-03-21
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the mobile device connection control unit software does not correspond to current production specifications. The mobile device connection control unit will receive an over-the-air (OTA) software update which improves general system stability and device compatibility for the Digital Vehicle Key functionality. The update is downloaded in the background and the customer will be prompted to accept or decline installation during the following ignition cycle. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not require a dealer visit.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
MERCEDES-BENZ AMG E 53 4MATIC+ WAGON2025
MERCEDES-BENZ AMG EQE SUV 4MATIC2025
MERCEDES-BENZ AMG EQE SUV 53 4MATIC2025
MERCEDES-BENZ AMG S 63 E 4MATIC+2025
MERCEDES-BENZ E 3502025
MERCEDES-BENZ E 350 4MATIC2025
MERCEDES-BENZ E 450 4MATIC2025
MERCEDES-BENZ E 450 4MATIC ALL-TERRAIN2025
MERCEDES-BENZ EQE SUV 350 4MATIC2025
MERCEDES-BENZ EQE SUV 350+2025
MERCEDES-BENZ EQE SUV 500 4MATIC2025
MERCEDES-BENZ EQS SUV 450 4MATIC2025
MERCEDES-BENZ EQS SUV 450+2025
MERCEDES-BENZ EQS SUV 580 4MATIC2025
MERCEDES-MAYBACH EQS SUV 680 4MATIC2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.