Mercedes-Benz bulletin LI72.20-P-075746
Mercedes-Benz filed this with NHTSA as a service bulletin dated Aug 24, 2026, received Feb 3, 2023, about the structure — 6 documents under this number. It names 176 model years (2016–2027). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationComplaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double‑clicking on the button instead. This reduces the likelihood of the button being activated accidentally or unintentionally. The recoding can be carried out as follows: 1. Add SA Code O19 into VeDoc (O for Oscar, not "zero") • an XSS ticket may be necessary to add the SA code 2. Perform SCN coding of EIS N73 control unit 3. Deactivate the vehicle key (a successful deactivation is indicated by the LED lighting up 2x briefly and then 1x for a long period). 4. Place the vehicle key in the storage compartment on the key symbol and turn on the ignition. IMPORTANT: all other vehicle keys must be outside the recognition range of the vehicle when doing this! Perform steps 3 and 4 successively for all vehicle keys. Notes: 6th, 7th and 8th generation keys can be deactivated as follows: Up to modification year 22/1 by double clicking the "Lock button" As of modification year 22/1, by press and holding the “Lock button", then double‑click the “Unlock button" at the same time. On model series 167, the storage compartment with the key symbol is located in the armrest. The SCN coding from the EZS is only transferred correctly to the vehicle key under the following conditions: Only one vehicle key is located in the vehicle, this key has been deactivated and it is positioned on the marking in the storage compartment for the data transfer. The costs for this adaptation are to be borne by the customer. For the newer BR 174, 178, 244, 248, 520, and 540, a software update must be initiated, as there is no way to perform SCN coding.
Documents filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| LI72.20-P-075746 | Service bulletin | Aug 24, 2026 | 11036511 |
| LI72.20-P-075746 | Service bulletin | Apr 2, 2026 | 11031256 |
| LI72.20-P-075746 | Service bulletin | Feb 25, 2026 | 11029083 |
| LI72.20-P-075746 | Service bulletin | Mar 10, 2025 | 11015617 |
| LI72.20-P-075746 | Service bulletin | Mar 11, 2024 | 10252777 |
| LI72.20-P-075746 | Service bulletin | Jan 5, 2023 | 10231032 |
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 themand 82 more model years on this site.
Also filed against model years this site has no page for: 2020 Mercedes-Benz AMG A45; 2016 Mercedes-Benz AMG C43; 2022 Mercedes-Benz AMG C63 S; 2024 Mercedes-Benz AMG C63 S E; 2024 Mercedes-Benz AMG C63 S E 4MATIC+; 2026 Mercedes-Benz AMG C63 S E Performance 4MATIC+; 2026 Mercedes-Benz AMG E 53 4MATIC+; 2025 Mercedes-Benz AMG E 53 4MATIC+ Wagon; 2026 Mercedes-Benz AMG E 53 4MATIC+ Wagon; 2025 Mercedes-Benz AMG E 53 E 4MATIC+; 2021 Mercedes-Benz AMG E53 S; 2023 Mercedes-Benz AMG E53E; 2022 Mercedes-Benz AMG E63; 2022 Mercedes-Benz AMG E63S; 2020 Mercedes-Benz AMG GT S; 2020 Mercedes-Benz AMG GT43; 2022 Mercedes-Benz AMG GT63; 2022 Mercedes-Benz AMG GT63 S; 2023 Mercedes-Benz AMG S 63 E; 2024 Mercedes-Benz AMG S 63 E; 2026 Mercedes-Benz AMG S 63 E 4MATIC+; 2020 Mercedes-Benz AMG SL63; 2019 Mercedes-Benz AMG SL65; 2019 Mercedes-Benz B 180; 2019 Mercedes-Benz B 200; 2019 Mercedes-Benz B 220; 2020 Mercedes-Benz C 350; 2019 Mercedes-Benz C 350 E; 2020 Mercedes-Benz C 350 E; 2017 Mercedes-Benz C450; 2023 Mercedes-Benz CLE 300; 2021 Mercedes-Benz E 350 E; 2018 Mercedes-Benz E 400 4MATIC Cabriolet; 2018 Mercedes-Benz E 400 4MATIC Wagon; 2024 Mercedes-Benz E 450 4MATIC ALL-Terrain; 2025 Mercedes-Benz E 450 4MATIC ALL-Terrain; 2026 Mercedes-Benz E 450 4MATIC ALL-Terrain; 2019 Mercedes-Benz E 450 4MATIC Cabriolet; 2020 Mercedes-Benz E 450 4MATIC Cabriolet; 2019 Mercedes-Benz E 450 4MATIC Wagon; 2020 Mercedes-Benz E 450 4MATIC Wagon; 2017 Mercedes-Benz E350; 2026 Mercedes-Benz E53 E 4MATIC+ ALL-Terrain; 2020 Mercedes-Benz EQC 400; 2021 Mercedes-Benz EQC 400 E; 2022 Mercedes-Benz EQE SUV; 2021 Mercedes-Benz Maybach GLS600; 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; 2018 Mercedes-Benz S 550; 2019 Mercedes-Benz S 550; 2020 Mercedes-Benz S 550.
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 LI72.20-P-075746 a recall?
No. A service bulletin 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 LI72.20-P-075746 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does LI72.20-P-075746 cover?
The manufacturer filed it against 176 model years: 2022 Mercedes-Benz A-Class, 2021 Mercedes-Benz A-Class, 2020 Mercedes-Benz A-Class, 2019 Mercedes-Benz A-Class, 2023 Mercedes-Benz AMG GT, 2022 Mercedes-Benz AMG GT and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.