Mercedes-Benz bulletin LI27.00-P-080840
Mercedes-Benz filed this with NHTSA as a service bulletin dated Aug 4, 2026, received Aug 5, 2026, about the unknown or other. It names 121 model years (2016–2025). 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 Mercedes-Benz USA is currently experiencing limited availability of transmission fluid specification ATF 236.17 due to a global supply constraint. 236.17 ATF 1L and 5L (PNs: A002989060312 and A002989060313) bottles are out of stock or in limited supply at Zep. This LI has been created with the following intention: - Provide dealers with additional workshop-focused guidance regarding the current ATF 236.17 supply constraint and the planned introduction of ATF 236.18. - Supplement existing communications and address common workshop questions related to maintenance, repairs, and fluid applicability. - Provide technical clarification and practical workshop guidance during the temporary supply constraint period. Dealers should continue to reference the latest News Channel Updates (NCUs) for the most current information regarding availability, ordering processes, supply status, and other related updates. Cause Damage to the Shell production facility has resulted in 236.17 oil supply being reduced to 50% of normal output until the end of 2026. Remedy Please first check Latest NCU updates for latest detailed information. Please continue placing orders through Paragon as normal. Supply is expected to remain reduced and allocation measures are currently in place. We ask for your patience through this restricted supply period. Most orders will be filled in the order in which they were received, as supply is replenished. Those dealers with zero inventory, and pending orders, will receive priority. We expect supply to be stabilized in September 2026. Approved Fluids: Only use transmission fluid from the approved list found on the Mercedes-Benz Operating Fluids website. Non-approved fluid will result in mechanical damage to the transmission and must be avoided. https://operatingfluids.mercedes-benz.com/sheet/236.17 Approved fluids can be claimed as follows if there is no Mercedes-Benz part number: Part # ATFSUB1L - TRANSMISSION FLUID 1 LITER ATFSUB5L - TRANSMISSION FLUID 5 LITER Dealerships with Zero Inventory AND Grounded Vehicles: If a vehicle is currently grounded for repair at your dealer due to no 236.17 inventory, we may be able to expedite your order. Please open a StarSupport ticket including the following information: (Parts Related Inquiry>National Accounts>Zep) • LI document number • Short explanation of repair needed for grounded vehicle • Current d
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| LI27.00-P-080840 | Service bulletin | Aug 4, 2026 | 11035780 |
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 53 more model years on this site.
Also filed against model years this site has no page for: 2022 Mercedes-Benz AMG C63 S; 2025 Mercedes-Benz AMG E 53 4MATIC+ Wagon; 2025 Mercedes-Benz AMG E 53 E 4MATIC+; 2022 Mercedes-Benz AMG E63S; 2023 Mercedes-Benz AMG GT 63 S E Coupe; 2022 Mercedes-Benz AMG GT63; 2022 Mercedes-Benz AMG GT63 S; 2024 Mercedes-Benz AMG GT63 S E; 2024 Mercedes-Benz AMG GT63 S E Performance; 2024 Mercedes-Benz AMG S 63 E; 2024 Mercedes-Benz AMG SL63 S E; 2024 Mercedes-Benz AMG SL63 S E Performance 4MATIC+; 2019 Mercedes-Benz C 350 E; 2020 Mercedes-Benz C 350 E; 2017 Mercedes-Benz C450; 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; 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; 2016 Mercedes-Benz E300; 2017 Mercedes-Benz GL350; 2017 Mercedes-Benz GL450; 2018 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 LI27.00-P-080840 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 LI27.00-P-080840 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 LI27.00-P-080840 cover?
The manufacturer filed it against 121 model years: 2025 Mercedes-Benz AMG GT, 2024 Mercedes-Benz AMG GT, 2023 Mercedes-Benz AMG GT, 2022 Mercedes-Benz AMG GT, 2021 Mercedes-Benz AMG GT, 2020 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.