Mercedes-Benz bulletin OTA-5497821/22
Mercedes-Benz filed this with NHTSA as a over-the-air update dated May 2, 2025, received May 9, 2025, about the electrical system. It names 29 model years (2021–2025). A over-the-air update is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationMercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the coding for the electronic ignition lock control unit does not correspond to the latest series production configuration. The electronic ignition lock control unit will be updated to change the logic for locking and unlocking the vehicle via the door handles. To unlock the vehicle, the large outer contact surface of the door handle must be touched. To lock the vehicle, the small, recessed contact surface of the door handle must be touched. 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.
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| OTA-5497821/22 | Over-the-air update | May 2, 2025 | 11018213 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. Quote it at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2025 Mercedes-Benz AMG E 53 4MATIC+ Wagon; 2023 Mercedes-Benz AMG S 63 E; 2024 Mercedes-Benz AMG S 63 E; 2024 Mercedes-Benz AMG SL63 S E; 2025 Mercedes-Benz E 450 4MATIC ALL-Terrain; 2024 Mercedes-Benz Redundant EQE 350; 2023 Mercedes-Benz Redundant EQE 350 4MATIC; 2023 Mercedes-Benz Redundant EQS 450; 2024 Mercedes-Benz Redundant EQS 450.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Common questions
Source: NHTSA, 49 CFR 579.5Is Mercedes-Benz OTA-5497821/22 a recall?
No. A over-the-air update is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the OTA-5497821/22 repair free?
A over-the-air update is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does OTA-5497821/22 cover?
The manufacturer filed it against 29 model years: 2025 Mercedes-Benz AMG GT, 2024 Mercedes-Benz AMG GT, 2025 Mercedes-Benz E-Class, 2024 Mercedes-Benz E-Class, 2025 Mercedes-Benz EQE, 2024 Mercedes-Benz EQE and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.