# Warranty extension EW \- DMTL

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: Warranty extension
- NHTSA id: 11035490
- Published by NHTSA: 2026\-08\-03
- Manufacturer's number: EW \- DMTL
- Manufacturer's date: 2026\-07\-31
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

This NCU replaces the prior NCU issued on May 15, 2025, and contains additional MY 2023 and MY 2024 vehicles which are highlighted below. In our continuing efforts to ensure the proper performance of Mercedes\-Benz products and to enhance the satisfaction of our customers, Mercedes\-Benz USA, LLC \(“MBUSA”\) is extending the warranty coverage on the Diagnostic Module for Tank Leakage detection \(DMTL\) in certain Model Year \(“MY”\) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 10 years/120,000 miles \(vehicles certified as LEV II\) and 15 years/150,000 miles \(vehicles certified as LEV III\), whichever occurs first, for the following condition: •Under certain circumstances, the DMTL may trigger erroneous Diagnostic Trouble Code \(DTC\) entries that may result in the illumination of the Check Engine Malfunction Indicator Lamp \(‘MIL’\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035490-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035490-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- 2018 MERCEDES BENZ C 300 4MATIC
- 2019 to 2022 MERCEDES\-BENZ A 220
- 2019 to 2022 MERCEDES\-BENZ A 220 4MATIC
- 2020 to 2021 MERCEDES\-BENZ AMG A35
- 2020 MERCEDES\-BENZ AMG A35 4MATIC
- 2018 to 2023 MERCEDES\-BENZ AMG C43
- 2023 MERCEDES\-BENZ AMG C43 4MATIC
- 2018 to 2021 MERCEDES\-BENZ AMG C63
- 2019 to 2023 MERCEDES\-BENZ AMG C63 S
- 2018 MERCEDES\-BENZ AMG C63S
- 2020 to 2023 MERCEDES\-BENZ AMG CLA35
- 2020 to 2023 MERCEDES\-BENZ AMG CLA45
- 2019 to 2021 MERCEDES\-BENZ AMG CLS53
- 2019 to 2023 MERCEDES\-BENZ AMG E53
- 2018 to 2023 MERCEDES\-BENZ AMG E63
- 2023 MERCEDES\-BENZ AMG E63 S
- 2018 to 2022 MERCEDES\-BENZ AMG E63S
- 2019 to 2023 MERCEDES\-BENZ AMG G63
- 2021 to 2023 MERCEDES\-BENZ AMG GLA35
- 2021 to 2023 MERCEDES\-BENZ AMG GLA45
- 2020 to 2022 MERCEDES\-BENZ AMG GLB35
- 2018 to 2023 MERCEDES\-BENZ AMG GLC43
- 2018 to 2022 MERCEDES\-BENZ AMG GLC63
- 2020 to 2023 MERCEDES\-BENZ AMG GLC63 S
- 2018 to 2019 MERCEDES\-BENZ AMG GLC63S
- 2018 to 2021 MERCEDES\-BENZ AMG GLE43
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2023 to 2024 MERCEDES\-BENZ AMG GLE53 4MATIC\+
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53 COUPE
- 2018 to 2024 MERCEDES\-BENZ AMG GLE63
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S
- 2023 to 2024 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S COUPE
- 2018 MERCEDES\-BENZ AMG GLE63S
- 2018 to 2022 MERCEDES\-BENZ AMG GLS63
- 2023 MERCEDES\-BENZ AMG GLS63 4MATIC\+
- 2023 MERCEDES\-BENZ AMG GT 63 S E COUPE
- 2020 to 2023 MERCEDES\-BENZ AMG GT43
- 2019 to 2023 MERCEDES\-BENZ AMG GT53
- 2019 to 2023 MERCEDES\-BENZ AMG GT63
- 2022 to 2023 MERCEDES\-BENZ AMG GT63 S
- 2019 to 2021 MERCEDES\-BENZ AMG GT63S
- 2018 to 2021 MERCEDES\-BENZ AMG S63
- 2022 to 2023 MERCEDES\-BENZ AMG SL43
- 2022 to 2023 MERCEDES\-BENZ AMG SL55
- 2023 MERCEDES\-BENZ AMG SL55 4MATIC\+
- 2022 to 2023 MERCEDES\-BENZ AMG SL63
- 2023 MERCEDES\-BENZ AMG SL63 4MATIC\+
- 2018 to 2023 MERCEDES\-BENZ C 300
- 2021 to 2023 MERCEDES\-BENZ C 300 4MATIC
- 2018 to 2020 MERCEDES\-BENZ C 350 E
- 2020 to 2023 MERCEDES\-BENZ CLA 250
- 2020 to 2023 MERCEDES\-BENZ CLA 250 4MATIC
- 2019 to 2023 MERCEDES\-BENZ CLS 450
- 2018 to 2019 MERCEDES\-BENZ E 300
- 2020 to 2023 MERCEDES\-BENZ E 350
- 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 2023 MERCEDES\-BENZ E 450
- 2019 to 2020 MERCEDES\-BENZ E 450 4MATIC
- 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
- 2019 to 2023 MERCEDES\-BENZ G 550
- 2021 to 2023 MERCEDES\-BENZ GLA 250
- 2021 to 2023 MERCEDES\-BENZ GLA 250 4MATIC
- 2020 to 2023 MERCEDES\-BENZ GLB 250
- 2020 to 2023 MERCEDES\-BENZ GLB 250 4MATIC
- 2018 to 2023 MERCEDES\-BENZ GLC 300
- 2023 MERCEDES\-BENZ GLC 300 4MATIC
- 2020 to 2021 MERCEDES\-BENZ GLC 350 E
- 2019 MERCEDES\-BENZ GLC350E
- 2018 to 2024 MERCEDES\-BENZ GLE 350
- 2021 to 2022 MERCEDES\-BENZ GLE 350 4MATIC
- 2024 MERCEDES\-BENZ GLE 350 4MATIC
- 2021 to 2022 MERCEDES\-BENZ GLE 350 4MATIC COUPE
- 2020 to 2024 MERCEDES\-BENZ GLE 450
- 2021 to 2022 MERCEDES\-BENZ GLE 450 4MATIC
- 2021 to 2022 MERCEDES\-BENZ GLE 450 4MATIC COUPE
- 2024 MERCEDES\-BENZ GLE 450E 4MATIC
- 2018 to 2019 MERCEDES\-BENZ GLE 550 E
- 2020 to 2021 MERCEDES\-BENZ GLE 580
- 2021 to 2024 MERCEDES\-BENZ GLE 580 4MATIC
- 2021 to 2022 MERCEDES\-BENZ GLE 580 4MATIC COUPE
- 2018 to 2020 MERCEDES\-BENZ GLS 450
- 2022 to 2023 MERCEDES\-BENZ GLS 450 4MATIC
- 2018 to 2019 MERCEDES\-BENZ GLS 550
- 2020 MERCEDES\-BENZ GLS 580 4MATIC
- 2022 to 2023 MERCEDES\-BENZ GLS 580 4MATIC
- 2023 MERCEDES\-BENZ GLS 600
- 2021 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS580
- 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 MERCEDES\-BENZ S 500 4MATIC
- 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 2023 MERCEDES\-BENZ S 580 4MATIC
- 2023 MERCEDES\-BENZ S 580 E
- 2023 MERCEDES\-BENZ S 580 E 4MATIC
- 2021 MERCEDES\-MAYBACH GLS 600
- 2022 to 2023 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 2023 MERCEDES\-MAYBACH S 580 4MATIC

## Recalls for the same vehicles and component

- [23V880000](/recalls/nhtsa/23V880000.md), 2023-12-21: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [2023672](/recalls/tc/2023672.md), 2023-12-15: Fuel System
- [23V445000](/recalls/nhtsa/23V445000.md), 2023-06-26: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP
- [2023353](/recalls/tc/2023353.md), 2023-06-23: Fuel System
- [21V961000](/recalls/nhtsa/21V961000.md), 2021-12-13: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL

## Other bulletins for the same vehicles and component

- [CL \- Tank Leak Detection](/bulletins/11036999.md), 2026-09-04, Warranty extension: FUEL/PROPULSION SYSTEM. Dear Mercedes\-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes\-Benz products and to enhance the satisfaction of our customers, Mercedes\-Benz USA is extending the warranty coverage for the Diagnostic Module for Tank Leakage Detection \("DMTL"\) on your vehicle from the original New Vehicle Limited Warranty of 4 years / 50,000 miles to 15 years/150,000 miles \(whichever occurs first\). This applies to the vehicle regardless of ownership. Why the Warranty extension? On certain Model Year 2018 \- 2024 A / C / CLA / CLS / E / G / GLA / GLB / GLC / GLE / GLS / GT / S / SL Mercedes\-Benz vehicles, under certain circumstances, the DMTL may trigger erroneous Diagnostic Trouble Code \("DTC"\) entries that may result in the illumination of the Check Engine Malfunction Indicator Lamp \("MIL"\). Any repairs under this warranty extension must be performed by an authorized Mercedes\-Benz dealership. • If your preferred authorized Mercedes\-Benz dealership performs a diagnosis and confirms that your vehicle has the issue, the repair will be covered under this extended warranty and performed at no cost to you. • This extended warranty does not apply to any other components or conditions beyond the ones mentioned above, and standard warranty terms apply, including the exclusions with respect to extra expenses, as identified in the Service and Warranty Information booklet.
- [CL \- 05012025](/bulletins/11019016.md), 2025-06-03, Other: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. In our continuing efforts to ensure the proper performance of Mercedes\-Benz products and to enhance the satisfaction of our customers, Mercedes\-Benz USA is extending the warranty coverage for the Diagnostic Module for Tank Leakage detection \(“DMTL”\) on your vehicle from the original New Vehicle Limited Warranty of 4 years / 50,000 miles to 15 years/150,000 miles \(whichever occurs first\). This applies to the vehicle regardless of ownership.
- [EW \- Tank Leakage](/bulletins/11018625.md), 2025-05-28, Warranty extension: FUEL/PROPULSION SYSTEM. In our continuing efforts to ensure the proper performance of Mercedes\-Benz products and to enhance the satisfaction of our customers, Mercedes\-Benz USA, LLC \(“MBUSA”\) is extending the warranty coverage on the Diagnostic Module for Tank Leakage detection \(DMTL\) in certain Model Year \(“MY”\) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 10 years/120,000 miles \(vehicles certified as LEV II\) and 15 years/150,000 miles \(vehicles certified as LEV III\), whichever occurs first, for the following condition: • Under certain circumstances, the DMTL may trigger erroneous Diagnostic Trouble Code \(DTC\) entries that may result in the illumination of the Check Engine Malfunction Indicator Lamp \(‘MIL’\).
- [NCU \- 2022070004](/bulletins/11009025.md), 2024-10-21, Service campaign: FUEL/PROPULSION SYSTEM. Mercedes\-Benz AG \("MBAG"\), the manufacturer of Mercedes\-Benz vehicles, has determined that on certain Model Year \(“MY”\) 2018 \- 2024 E\-Class, S\-Class \& AMG GT \(213, 217, 222, 223 and 290 platforms\) vehicles, the low pressure fuel line does not meet current production specifications. Therefore, it is possible that accelerated aging in the area of connection could occur, resulting in a leak. A risk of fire can be ruled out. MBUSA will conduct an Emission Service Campaign. An authorized Mercedes\-Benz dealer will replace the braided hose of low\-pressure fuel line and install a heat shield over the new braided hose.
- [LI07.61\-P\-070707](/bulletins/11000624.md), 2024-06-01, Service bulletin: ENGINE; FUEL/PROPULSION SYSTEM. The customer complains of a check engine light \(CEL\) on. May also complain of the engine running roughly and/or a loss of power. Multiple Causes Remedy Please see the document "Remedy Instructions" in attachments. For MY19\+ G63 there may be an alternate solution available. Please reference LI07.61\-P\-076755 before performing the steps in this LI.
- [NCU\-2022020007](/bulletins/10228820.md), 2023-01-05, Service bulletin: FUEL/PROPULSION SYSTEM; ENGINE AND ENGINE COOLING. Mercedes\-Benz AG \("MBAG"\), the manufacturer of Mercedes\-Benz vehicles, has determined that on certain Model Year \(“MY”\) 2020 AMG GT\-Class \(190 platform\), the fuel system control unit software does not correspond to the current series production configuration. It is possible that the check engine malfunction indicator lamp \(‘MIL’\) may not illuminate as intended. What We’re Doing MBUSA will conduct an Emission Service Campaign. An authorized Mercedes\-Benz dealer will update the fuel system control unit software on the affected vehicles.
- [LI0761P070707](/bulletins/10202514.md), 2021-10-25, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. M17x.xxx Check Engine Light on with Misfire DTC's

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