# Service bulletin LI27.00\-P\-080840

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.

- Type: Service bulletin
- NHTSA id: 11035780
- Published by NHTSA: 2026\-08\-05
- Manufacturer's number: LI27.00\-P\-080840
- Manufacturer's date: 2026\-08\-04
- NHTSA component: POWER TRAIN; UNKNOWN OR OTHER

## NHTSA's summary

Complaint 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 days down of RO Maintenance and Service Interval Guidance Published maintenance intervals remain unchanged. Vehicles should continue to be maintained in accordance with the applicable maintenance schedule. This LI does not revise or extend any published maintenance interval requirements. If all required parts and materials are not available prior to scheduling or beginning a transmission service, dealers should consider postponing routine preventative transmission maintenance until the necessary parts become available. For vehicles that have not yet reached the applicable maintenance interval and do not exhibit transmission\-related concerns, there is no need to recommend preventative transmission services prior to the scheduled maintenance interval. When evaluating whether routine transmission maintenance can be deferred until parts become available, dealers should consider: • Overall vehicle condition • Vehicle usage and operating conditions • Presence of transmission\-related symptoms or customer complaints • Customer expectations and vehicle operating requirements • Availability of required parts and materials Introduction of New Fluid Specification 236.18 Mercedes\-Benz is currently preparing the introduction of ATF 236.18 as an additional approved transmission fluid solution for applicable NAG3 transmissions. At the time of publication of this LI, ATF 236.18 is not yet available for dealer ordering or workshop use in the U.S. market. See attachment for further details.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035780-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035780-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline

## Vehicles listed

- 2025 MERCEDES BENZ AMG GLE63 S 4MATIC\+
- 2018 MERCEDES BENZ C 300 4MATIC
- 2025 MERCEDES BENZ GLE 350
- 2017 to 2024 MERCEDES\-BENZ AMG C43
- 2023 to 2025 MERCEDES\-BENZ AMG C43 4MATIC
- 2019 to 2021 MERCEDES\-BENZ AMG C63
- 2019 to 2023 MERCEDES\-BENZ AMG C63 S
- 2019 to 2021 MERCEDES\-BENZ AMG CLS53
- 2025 MERCEDES\-BENZ AMG E 53 4MATIC\+ WAGON
- 2025 MERCEDES\-BENZ AMG E 53 E 4MATIC\+
- 2017 to 2018 MERCEDES\-BENZ AMG E43
- 2019 to 2023 MERCEDES\-BENZ AMG E53
- 2018 MERCEDES\-BENZ AMG E63
- 2023 MERCEDES\-BENZ AMG E63 S
- 2018 to 2022 MERCEDES\-BENZ AMG E63S
- 2019 to 2024 MERCEDES\-BENZ AMG G63
- 2017 to 2025 MERCEDES\-BENZ AMG GLC43
- 2024 to 2025 MERCEDES\-BENZ AMG GLC43 4MATIC
- 2024 to 2025 MERCEDES\-BENZ AMG GLC43 4MATIC COUPE
- 2018 to 2022 MERCEDES\-BENZ AMG GLC63
- 2020 to 2023 MERCEDES\-BENZ AMG GLC63 S
- 2019 MERCEDES\-BENZ AMG GLC63S
- 2016 to 2020 MERCEDES\-BENZ AMG GLE43
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2023 to 2025 MERCEDES\-BENZ AMG GLE53 4MATIC\+
- 2023 to 2025 MERCEDES\-BENZ AMG GLE53 4MATIC\+ COUPE
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53 COUPE
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S
- 2023 to 2024 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+
- 2025 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+ COUPE
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S COUPE
- 2020 to 2022 MERCEDES\-BENZ AMG GLS63
- 2023 to 2025 MERCEDES\-BENZ AMG GLS63 4MATIC\+
- 2023 MERCEDES\-BENZ AMG GT 63 S E COUPE
- 2019 to 2023 MERCEDES\-BENZ AMG GT53
- 2019 to 2025 MERCEDES\-BENZ AMG GT63
- 2025 MERCEDES\-BENZ AMG GT63 4MATIC\+
- 2025 MERCEDES\-BENZ AMG GT63 PRO 4MATIC\+
- 2022 to 2023 MERCEDES\-BENZ AMG GT63 S
- 2024 to 2025 MERCEDES\-BENZ AMG GT63 S E
- 2024 MERCEDES\-BENZ AMG GT63 S E PERFORMANCE
- 2025 MERCEDES\-BENZ AMG GT63 S E PERFORMANCE 4MATIC\+
- 2019 to 2021 MERCEDES\-BENZ AMG GT63S
- 2024 to 2025 MERCEDES\-BENZ AMG S 63 E 4MATIC\+
- 2017 to 2021 MERCEDES\-BENZ AMG S63
- 2022 to 2023 MERCEDES\-BENZ AMG SL63
- 2025 MERCEDES\-BENZ AMG SL63
- 2023 to 2025 MERCEDES\-BENZ AMG SL63 4MATIC\+
- 2024 to 2025 MERCEDES\-BENZ AMG SL63 S E
- 2024 to 2025 MERCEDES\-BENZ AMG SL63 S E PERFORMANCE 4MATIC\+
- 2017 to 2020 MERCEDES\-BENZ AMG SLC43
- 2017 to 2025 MERCEDES\-BENZ C 300
- 2021 to 2025 MERCEDES\-BENZ C 300 4MATIC
- 2019 to 2020 MERCEDES\-BENZ C 350 E
- 2016 to 2017 MERCEDES\-BENZ C450
- 2019 to 2023 MERCEDES\-BENZ CLS 450
- 2016 MERCEDES\-BENZ CLS 550
- 2018 MERCEDES\-BENZ CLS 550
- 2015 MERCEDES\-BENZ CLS550
- 2017 MERCEDES\-BENZ CLS550
- 2018 to 2019 MERCEDES\-BENZ E 300
- 2020 to 2025 MERCEDES\-BENZ E 350
- 2024 to 2025 MERCEDES\-BENZ E 350 4MATIC
- 2018 MERCEDES\-BENZ E 400
- 2018 MERCEDES\-BENZ E 400 4MATIC
- 2018 MERCEDES\-BENZ E 400 4MATIC CABRIOLET
- 2018 MERCEDES\-BENZ E 400 4MATIC COUPE
- 2018 MERCEDES\-BENZ E 400 4MATIC WAGON
- 2019 to 2024 MERCEDES\-BENZ E 450
- 2019 to 2020 MERCEDES\-BENZ E 450 4MATIC
- 2023 to 2025 MERCEDES\-BENZ E 450 4MATIC
- 2024 to 2025 MERCEDES\-BENZ E 450 4MATIC ALL\-TERRAIN
- 2019 to 2020 MERCEDES\-BENZ E 450 4MATIC CABRIOLET
- 2019 to 2020 MERCEDES\-BENZ E 450 4MATIC COUPE
- 2019 to 2020 MERCEDES\-BENZ E 450 4MATIC WAGON
- 2016 to 2017 MERCEDES\-BENZ E300
- 2017 MERCEDES\-BENZ E400
- 2019 to 2024 MERCEDES\-BENZ G 550
- 2017 MERCEDES\-BENZ GL350
- 2017 MERCEDES\-BENZ GL450
- 2018 to 2025 MERCEDES\-BENZ GLC 300
- 2023 to 2025 MERCEDES\-BENZ GLC 300 4MATIC
- 2024 to 2025 MERCEDES\-BENZ GLC 300 4MATIC COUPE
- 2024 MERCEDES\-BENZ GLC 300 COUPE
- 2020 MERCEDES\-BENZ GLC 350
- 2020 to 2021 MERCEDES\-BENZ GLC 350 E
- 2025 MERCEDES\-BENZ GLC 350 E 4MATIC
- 2016 to 2017 MERCEDES\-BENZ GLC300
- 2018 to 2024 MERCEDES\-BENZ GLE 350
- 2021 to 2025 MERCEDES\-BENZ GLE 350 4MATIC
- 2021 to 2022 MERCEDES\-BENZ GLE 350 4MATIC COUPE
- 2020 to 2022 MERCEDES\-BENZ GLE 350 E
- 2018 to 2019 MERCEDES\-BENZ GLE 400
- 2020 to 2024 MERCEDES\-BENZ GLE 450
- 2021 to 2025 MERCEDES\-BENZ GLE 450 4MATIC
- 2021 to 2022 MERCEDES\-BENZ GLE 450 4MATIC COUPE
- 2025 MERCEDES\-BENZ GLE 450 4MATIC COUPE
- 2024 to 2025 MERCEDES\-BENZ GLE 450E 4MATIC
- 2020 to 2021 MERCEDES\-BENZ GLE 580
- 2021 to 2025 MERCEDES\-BENZ GLE 580 4MATIC
- 2021 to 2022 MERCEDES\-BENZ GLE 580 4MATIC COUPE
- 2016 to 2017 MERCEDES\-BENZ GLE350
- 2016 MERCEDES\-BENZ GLE350D
- 2016 to 2017 MERCEDES\-BENZ GLE400
- 2016 to 2017 MERCEDES\-BENZ GLE450
- 2017 MERCEDES\-BENZ GLE550
- 2018 to 2020 MERCEDES\-BENZ GLS 450
- 2022 to 2025 MERCEDES\-BENZ GLS 450 4MATIC
- 2018 to 2019 MERCEDES\-BENZ GLS 550
- 2020 MERCEDES\-BENZ GLS 580 4MATIC
- 2022 to 2025 MERCEDES\-BENZ GLS 580 4MATIC
- 2023 MERCEDES\-BENZ GLS 600
- 2017 MERCEDES\-BENZ GLS350D
- 2017 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS450
- 2017 MERCEDES\-BENZ GLS550
- 2021 MERCEDES\-BENZ GLS580
- 2015 MERCEDES\-BENZ ML350
- 2018 to 2020 MERCEDES\-BENZ S 450
- 2018 to 2020 MERCEDES\-BENZ S 450 4MATIC
- 2021 MERCEDES\-BENZ S 500
- 2023 MERCEDES\-BENZ S 500
- 2022 to 2025 MERCEDES\-BENZ S 500 4MATIC
- 2018 MERCEDES\-BENZ S 550
- 2020 MERCEDES\-BENZ S 550
- 2021 MERCEDES\-BENZ S 560
- 2018 to 2020 MERCEDES\-BENZ S 560 4MATIC
- 2018 to 2020 MERCEDES\-BENZ S 560 4MATIC COUPE
- 2019 to 2020 MERCEDES\-BENZ S 560 E
- 2021 MERCEDES\-BENZ S 580
- 2023 MERCEDES\-BENZ S 580
- 2022 to 2025 MERCEDES\-BENZ S 580 4MATIC
- 2023 MERCEDES\-BENZ S 580 E
- 2023 to 2025 MERCEDES\-BENZ S 580 E 4MATIC
- 2016 to 2017 MERCEDES\-BENZ S550
- 2017 MERCEDES\-BENZ S550 4MATIC
- 2018 to 2020 MERCEDES\-BENZ SL 450
- 2018 to 2020 MERCEDES\-BENZ SL 550
- 2017 MERCEDES\-BENZ SL450
- 2017 MERCEDES\-BENZ SL550
- 2018 to 2020 MERCEDES\-BENZ SLC 300
- 2017 MERCEDES\-BENZ SLC 43 AMG
- 2016 to 2017 MERCEDES\-BENZ SLC300
- 2016 MERCEDES\-BENZ SLK300
- 2021 MERCEDES\-MAYBACH GLS 600
- 2022 MERCEDES\-MAYBACH GLS 600 4MATIC
- 2024 to 2025 MERCEDES\-MAYBACH GLS 600 4MATIC
- 2021 MERCEDES\-MAYBACH S 560
- 2018 to 2020 MERCEDES\-MAYBACH S 560 4MATIC
- 2021 MERCEDES\-MAYBACH S 580
- 2022 to 2025 MERCEDES\-MAYBACH S 580 4MATIC
- 2023 to 2024 MERCEDES\-MAYBACH S 680
- 2022 to 2025 MERCEDES\-MAYBACH S 680 4MATIC
- 2017 MERCEDES\-MAYBACH S550

JSON: [/v1/bulletins/11035780](/v1/bulletins/11035780)

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