Model year

2015 Mercedes-Benz ML400

SUV, gasoline, AWD/All-Wheel Drive, built in United States. Owner complaints on file from Apr 29, 2015 to Aug 22, 2023.

Recall campaigns covering this model year5383k vehicles or units across those campaigns
Owner complaints4Below the median 2015 suv
Severity index25.02015 suvs average 7.3
First 24 months1Complaints in its first two years
Complaints over time

Complaints about the 2015 Mercedes-Benz ML400 peaked in 2023, with 2 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.511.522015201620172018201920202021202220232202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

25% of complaints about the 2015 Mercedes-Benz ML400 name engine and cooling

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Engine and cooling
1
Fuel system
1
Powertrain
1
Brakes
1
Steering
1
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

5 recall campaigns cover the 2015 Mercedes-Benz ML400

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2015 Mercedes-Benz ML400
CampaignFiledSubjectComponentVehiclesRemedy
22V-955Dec 23, 2022Water might accumulate in the spare tire wheel well and damage the fuel pump control unit, which could cause an engine stall while drivingFuel system348,183Part replacement
19V-787Nov 1, 2019For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdfCommunication24,226Software update
18V-272Apr 27, 2018In certain driving conditions, if the oil level in the ACS reservoir is below the minimum level, the oil may foam and leak out of the vent holes…Suspension9,725Part replacement
16V-900Dec 14, 2016Affected vehicles have axle bolts on the front and/or rear drive axle carriers that may not have been assembled correctlyPowertrain48Part replacement
16V-442Jun 16, 2016Affected vehicles may have had the right rear seatbelt anchor bolt incorrectly installedSeat belts423Repair or modification
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2015 Mercedes-Benz ML400

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

4 complaints on file, page 1 of 1.

  1. Filed Aug 22, 2023Failure Aug 7, 202379,000 milesDistrict Heights, MDFuel system, Diesel, Gasoline

    The contact owns a 2015 Mercedes-Benz ML400. The contact stated while driving 45 MPH, the vehicle lost motive power without warning. The vehicle was towed to the residence. The dealer was contacted and stated the vehicle was not included in NHTSA Campaign Number: 22V955000 (Fuel System, Diesel, Fuel System, Gasoline). The vehicle was not diagnosed. The vehicle was not repaired. The manufacturer was contacted and stated that the VIN was not included in the recall. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 79,000.

    NHTSA complaint 11540104
  2. Filed May 18, 2023Failure May 15, 2023Arlington, VAEngine

    The cam shaft adjuster failed, causing a loss of power in the engine. Vehicle could not maintain speed on hills or merge onto interstates in this condition.

    NHTSA complaint 11522582
  3. Filed Apr 30, 2018Failure Apr 20, 201815,000 milesOlympia, WAService brakes, Steering, Unknown or otherCrash1 killed

    I BELIEVE WITH MY HEART AND SOUL MY BEAUTIFUL WIFE WAS KILLED DUE TO FAILURE OF VEHICLE IN MOTION AND LOST ALL CONTROL.*DT*JB

    NHTSA complaint 11090969
  4. Filed Apr 29, 2015Failure Mar 12, 2015800 milesSouthborough, MAPower train, Unknown or other

    THIS NEW MERCEDES-BENZ ML400 HAS A MANUAL TRANSMISSION FEATURE THAT WITHOUT REASON REVERTS BACK TO AUTOMATIC WITHIN ABOUT 10 SECONDS WITHOUT ANY REASON. THIS PREVENTS THE DRIVER FROM BEING ABLE TO CONTROL TRACTION IN SLIPPERY OR OTHER DIFFICULT CONDITIONS, WHICH CLEARLY WAS OUR EXPERIENCE. THIS FEATURE IS MISREPRESENTED IN THE OWNERS MANUAL WHICH STATES AS HAVING A MANUAL TRANSMISSON CONTROL CAPABILITY AND WAS ALSO SOLD AS SUCH BY THE DEALERSHIP.

    NHTSA complaint 10713809
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

104 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

  • LI46.35-P-067339 Aug 28, 2026 · Service Bulletin/Repair Instructions
    Complaint During part of the steering movement, it feels heavier or more difficult to steer in the same spot every time. OR Rattling, humming, dry sliding/gravel noise from the electric steering system when steering (see attachment). Complaint does not imp…
  • LI82.62-P-078631 Aug 6, 2026 · Service Bulletin/Repair Instructions
    Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis wor…
  • LI35.30-P-058566 Jul 14, 2026 · Service Bulletin/Repair Instructions
    Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by exp…
  • LI33.20-P-078406 Jul 8, 2026 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
  • LI33.20-P-078406 Jul 7, 2026 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
  • LI82.85-P-080507 May 26, 2026 · Service Bulletin/Repair Instructions
    Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument cluster. In addition, the following two conditions are also met: • HERMES (N1…
  • LI33.20-P-078406 May 12, 2026 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comp…
  • CL-Exhaust Valve Assembly Sep 6, 2023 · Other
    In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA ("MBUSA") is extending the coverage for the exhaust valve assembly on your vehicle as follows: Why the …
  • CL- Outside Temp EW Mar 20, 2019 · Other
    The purpose of this letter is to advise you of additional benefits that Mercedes-Benz is providing to you regarding your vehicle ownership. What’s Included In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance t…
  • EW- ECU Software Mar 13, 2019 · Warranty Program/Extension
    Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on the various Model Year (“MY”) 2014 - 2018 Mercedes-Benz vehicles listed below, the engine control unit (ECU) software may not meet current specifications. In certain circ…
  • EW - HVAC Service Oct 29, 2020 · Warranty Program/Extension
    This NCU replaces the prior NCUs issued on May 18, June 25, 2020 and October 1, 2020 and contains important workshop instructions on how the HVAC Service Warranty repair must be carried out. To enhance the satisfaction of our customers, avoid further costs …
  • LI82.10-P-078301 Apr 16, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamp, front fog lamp leaky or fogged. Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm…
  • LI82.10-P-078301 Mar 9, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm …
  • LI82.10-P-078307 Feb 25, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A…
  • LI82.10-P-078301 Feb 24, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm …
  • LI82.10-P-078896 Feb 24, 2026 · Service Bulletin/Repair Instructions
    Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A…
  • LI33.30-P-056665 Nov 15, 2025 · Service Bulletin/Repair Instructions
    Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eli…
  • LI33.30-P-056665 May 21, 2025 · Service Bulletin/Repair Instructions
    Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eli…
  • LI82.85-P-079271 May 22, 2025 · Service Bulletin/Repair Instructions
    Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the instrument cluster. Cause The message "SOS - Service not activated" tells the …
  • LI82.10-P-078896 Apr 28, 2025 · Service Bulletin/Repair Instructions
    Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A…
  • LI82.10-P-078301 Apr 28, 2025 · Service Bulletin/Repair Instructions
    Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Remedy NOTE: If a pressure compensati…
  • LI83.20-P-051802 Apr 1, 2025 · Service Bulletin/Repair Instructions
    Complaint Vehicle with atypical reduced heat output. Cause Silicate granulate may have escaped from a damaged bag in the expansion reservoir (not visible), reducing the coolant flow in the heater heat exchanger (see picture). Remedy With the aforementioned …
  • LI82.70-P-077433 Mar 5, 2025 · Service Bulletin/Repair Instructions
    Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. C…
  • LI35.30-P-058566 Jan 15, 2025 · Service Bulletin/Repair Instructions
    Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is elimina…
  • LI72.10-P-069496 Jan 24, 2025 · Service Bulletin/Repair Instructions
    Complaint Windows of the front doors poorly adjusted/sluggish Cause The settings of the front windows may be set incorrectly Remedy Adjustment of the windows or window guides as specified in AR72.10-P-1960GQS . A video with further information on instructio…
  • LI33.30-P-056665 Jan 16, 2025 · Service Bulletin/Repair Instructions
    Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Cause If the complaint is eliminated by experimentally loose…
  • LI88.60-P-072093 Jan 24, 2025 · Service Bulletin/Repair Instructions
    Complaint Fuel door may require several attempts to open. Please note that if the complaint "Fuel filler flap not opening" occurs, it is important to check the fuel filler flap before replacing the central locking actuator. For gasoline hybrid vehicles wher…
  • LI33.20-P-078406 Jan 28, 2025 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering functionality is not affected. For 192 and 232: Only affects vehicles in the below FIN rang…
  • LI54.65-P-066284 Jan 15, 2025 · Service Bulletin/Repair Instructions
    Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The reversing camera or the 360° system functions normally when activated manually or b…
  • LI54.65-P-066284 Nov 25, 2024 · Service Bulletin/Repair Instructions
    Complaint The flap of the reversing camera opens and closes by itself during forward travel. This happens several times during the trip. The customer notices the sound of opening and closing. No camera image is displayed in the head unit. The reversing came…
  • LI27.19-P-072588 Nov 20, 2024 · Service Bulletin/Repair Instructions
    Complaint Transmission control unit Y3/8n4 (fully integrated transmission control unit (VGS)) not listed in quick test and/or no communication possible with VGS. Cause Transmission control unit Y3/8n4 Remedy It is important that LI54.15-P-057373 is processe…
  • LI82.85-P-078473 Nov 20, 2024 · Service Bulletin/Repair Instructions
    Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the Digital Extras (previously Mercedes me) cannot be activated. The DTC B15CE00 is activ…
  • LI33.20-P-078406 Nov 21, 2024 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering functionality is not affected. For 192 and 232: Only affects vehicles up to FIN vehicle ide…
  • LI82.10-P-078069 Nov 13, 2024 · Service Bulletin/Repair Instructions
    Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing …
  • LI82.35-P-078467 Oct 23, 2024 · Service Bulletin/Repair Instructions
    Complaint Washer fluid system leaks Cause Various possible causes: 1. Washer fluid reservoir itself. 2. Seal on washer fluid pump/washer fluid reservoir. 3. Washer fluid pump. 3.1. Distributor housing leaks. 3.2. Pump fitting leaks. 3.3. Washer fluid hose c…
  • LI82.85-P-078473 Oct 3, 2024 · Service Bulletin/Repair Instructions
    Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the Digital Extras (previously Mercedes me) cannot be activated. The DTC B15CE00 is activ…
  • LI82.10-P-078302 Sep 10, 2024 · Service Bulletin/Repair Instructions
    Complaint Headlamps fogged or droplets forming. Cause Due to its outlet openings, the headlamp is an "open system". This means that acidic gases, moisture, dirt and exhaust gases can penetrate into the headlamp. This can lead to the formation of condensatio…
  • LI82.70-P-077433 Sep 28, 2024 · Service Bulletin/Repair Instructions
    Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. C…
  • LI33.20-P-078406 Sep 26, 2024 · Service Bulletin/Repair Instructions
    Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering functionality is not affected. For 192 and 232: Only affects vehicles up to VIN vehicle ide…
  • CL - 2022080005 Aug 9, 2024 · Other
    In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE, GLS, GLC, SL, and AMG GT vehicles with 6 and …
  • LI82.10-P-078307 Sep 21, 2024 · Service Bulletin/Repair Instructions
    Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A…
  • LI82.10-P-078304 Sep 9, 2024 · Service Bulletin/Repair Instructions
    Complaint Headlamps fogged or droplets forming. Cause Due to the housing cover with pressure compensation diaphragm, the headlamps are a "closed system". This means that the headlamps are protected against acid gases, dirt and exhaust gas. However, moistur…
  • LI82.10-P-078301 Sep 10, 2024 · Service Bulletin/Repair Instructions
    Complaint Headlamp or front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Headlamps comply with all applicabl…
  • NCU - 2022080005 Aug 10, 2024 · Service Campaign
    Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE, GLS, GLC, SL, and AMG GT (204, 205, 207, 212, 213, 217, 221, 222, 463, 216, 218…
  • LI82.10-P-078069 Jul 23, 2024 · Service Bulletin/Repair Instructions
    Complaint Rear lamps fogged up/not leaktight. Cause Fogging of the rear lamps is a natural phenomenon, which can occur under certain climatic conditions. This does not lead to any technical impairment of the rear lamps. Remedy Rear lamp: Remedy 1: Clearing …
  • LI91.18-P-077075 Dec 4, 2023 · Service Bulletin/Repair Instructions
    Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats for extended periods of time (pressure marks). ⢠Objects wedged between the seat backrest and seat cushion (e.g. seat belt buckle). ⢠Light init…
  • LI82.20-P-073063 Feb 16, 2022 · Service Bulletin/Repair Instructions
    Complaint The touchpad dimming function does not work and the search lighting is either at maximum brightness or fully off (dependent upon dimming signal). Note: The dimming functions of the instrument cluster and head unit display are not affected and re…
  • LI09.00-P-074093 Dec 8, 2021 · Service Bulletin/Repair Instructions
    "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 – Boost Pressure is Too High"" "
  • LI8270P056963 Aug 21, 2013 · Service Bulletin/Repair Instructions
    Software update of COMAND Online control unit.
  • LI8270P055572 Aug 5, 2013 · Service Bulletin/Repair Instructions
    Mobile phone cotacts are not transferred completely.
  • LI8220P073063 Jun 16, 2021 · Service Bulletin/Repair Instructions
    Touch pad: Search lighting does not dim or does not turn on.
  • Launch NCU - 202 Jan 7, 2021 · Service Bulletin/Repair Instructions
    Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2013-2017 B-Class, C-Class, CLA-Class, CLS-Class, E-Class, G-Class, GL-Class, GLA-Class, GLC-Class, GLE-Class, GLK-Class, GLS-Class, GT-Class, M-C…
  • LI77.21-P-072113 Dec 8, 2020 · Service Bulletin/Repair Instructions
    Creaking noise from fixed glass section of panoramic roof in area of rear passenger compartment grab handles
  • NCU-2020110011 Nov 11, 2020 · Service Bulletin/Repair Instructions
    Mercedes-Benz USA, LLC (?MBUSA?) has entered into an agreement with the United States Department of Justice (DOJ), the Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and the California Attorney General?s Office (CA AG) reg…
  • NCU-2020070018 Nov 12, 2020 · Service Bulletin/Repair Instructions
    Mercedes-Benz USA, LLC (?MBUSA?) has entered into an agreement with the United States Department of Justice (DOJ), the Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and the California Attorney General?s Office (CA AG) reg…
  • Initial NCU MY13 Sep 14, 2020 · Service Bulletin/Repair Instructions
    Mercedes-Benz USA, LLC (?MBUSA?) has entered into an agreement with the United States Department of Justice (DOJ), the Environmental Protection Agency (EPA), the California Air Resources Board (CARB), and the California Attorney General?s Office (CA AG) reg…
  • LI82.85-P-071453 Jul 31, 2020 · Service Bulletin/Repair Instructions
    Incorrect time and/or instrument cluster message "SOS, service not activated" and/or Mercedes Me connect services nonfunctional
  • NCU - HVAC Warra May 21, 2020 · Service Bulletin/Repair Instructions
    To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold and mildew type odors originating…
  • S-B-67.00-29 Jul 23, 2013 · Service Bulletin/Repair Instructions
    Since 12/2012 (model 166) and since 06/2013 (model 242) the glass breakage loops are no longer in the side windows and rear window. Suitable interior protection ensures that the interior monitoring function continues to operate correctly.
  • LI83.00-P-055425 Jul 1, 2013 · Service Bulletin/Repair Instructions
    A flapping/rattling noise can be heard from the area of the center console towards the rear.
Source: NHTSA manufacturer communications files.