2012 MERCEDES-BENZ ML350 Complaints

View complaints related to 2012 MERCEDES-BENZ ML350. The complaints found here are submitted by actual consumers with first hand experience. There are more than 70 complaints submitted for the 2012 MERCEDES-BENZ ML350. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2012 MERCEDES-BENZ ML350
    - Richmond, VA

    The contact owns a 2012 Mercedes-Benz ML350. The contact stated that while her husband was driving at an undisclosed speed, the vehicle made an abnormally loud sound and then stalled. Additionally, the vehicle failed to accelerate properly while driving. The contact's husband coasted the vehicle to the side of the road. The vehicle was restarted and driven to the residence. The vehicle was taken to an independent mechanic, who diagnosed that the fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 79,372.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 MERCEDES-BENZ ML350
    - Zionsville, IN

    The contact owns a 2012 Mercedes-Benz ML350. The contact stated that while driving at an undisclosed speed, the vehicle stalled and lost forward propulsion. The contact turned off and restarted the vehicle. The contact drove the vehicle for a short distance and the failure reoccurred. The vehicle lost motive power and failed to restart. The vehicle was towed to an independent mechanic where the contact was informed of water entering the spare tire wheel well in the trunk of the vehicle. The contact was advised that the spare tire wheel well, was filled with water. The contact was advised to take the vehicle to the dealer for assistance. Per the dealer's records, the work associated with NHTSA campaign #22V955000 and MBUSA recall #2023010002 had been completed in March 2023. However, that recall failed to address the source of the issue where water was improperly entering the spare tire wheel well. The dealer did not maintain any records as to the status of the fuel pump or signs of water entry when the recall was completed. The manufacturer refused to cover this repair under the associated recall. The failure mileage was approximately 141,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 MERCEDES-BENZ ML350
    - Philadelphia, PA

    I have own this vehicle on July 2023. I have recently noticed the exterior paint is peeling off quickly all over the body.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ ML350
    - Tacoma, WA

    While driving, vehicle stalled. Mechanic found water in spare wheel Well. And fuel module and fuel pump shorted out. Had vehicle repaired; 07/22. The vehicle stalled again in 12/22. Mechanic found water in spare wheel well. Had to replace fuel pump. In February,2023, Mercedes Benz notified me of a recall, NHTSA Recall I D: 22V955 ; water intrusion in the spare wheel well. And, stated their local dealer would repair vehicle or reimburse me for the cost of repair, if I had the repair done already. I submitted receipts and documents pertaining to the repair. The Mercedes Benz Dealership refused to acknowledge the causal relationship between the repairs and the recall issue. And, refused me reimbursement.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ ML350
    - Baltimore , MD

    When reversing the vehicle the brake pedal jumps with your feet on the brake pedal and a nose rattles,when driving and you have a sudden stop motion the vehicle brakes pedal with your feet on it it’s very hard to push the brake Pedal . Reversing the vehicle very strong nose and the vehicle doesn’t stop right away

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ ML350
    - San Lorenzo, PR

    CUANDO ENCIENDO MI GUAGUA HACE UN RUIDO MUY FUERTE Y SE SIENTE COMO SI SE VA A APAGAR. EL MOTOR SE PUEDE ROMPER EN CUALQUIER MOMENTO. SI SE HA LLEVADO A DIFERENTES TALLERES PARA CONFIRMAR EL RUIDO Y ME REFIEREN QUE SON MAS DE 80 GUAGUAS QUE HAN VISITADO SU TALLER CON EL MISMO PROBLEMA. NO PRESENTA NINGUNA ADVERTENCIA CUANDO APARECIO POR PRIMERA VEZ. EN EL TALLER ME DICEN QUE SE DEBE CAMBIAR EL MOTOR POR QUE SON LOS MOTOR STROKER Y ESO PUEDE CAUSAR UN FEO ACCIDENTE. WHEN I TURN ON MY BUS IT MAKES A VERY LOUD NOISE AND IT FEELS LIKE IT'S GOING TO TURN OFF. THE ENGINE CAN BREAK AT ANY TIME. IF IT HAS BEEN TAKEN TO DIFFERENT WORKSHOPS TO CONFIRM THE NOISE AND THEY TELL ME THAT THERE ARE MORE THAN 80 BUSES THAT HAVE VISITED THEIR WORKSHOP WITH THE SAME PROBLEM. IT DOES NOT PRESENT ANY WARNING WHEN IT FIRST APPEARED. IN THE WORKSHOP THEY TELL ME THAT THE ENGINE MUST BE CHANGED BECAUSE THEY ARE THE STROKER ENGINES AND THAT CAN CAUSE AN UGLY ACCIDENT.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ ML350
    - Fort Myers, FL

    The contact’s husband owns a 2012 Mercedes-Benz ML350. The contact received notification of NHTSA Campaign Number: 22V955000 (Fuel System, Diesel, Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The dealer was contacted, and the vehicle was taken to the dealer where the vehicle remained. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2012 MERCEDES-BENZ ML350
    - Tacoma, WA

    Due to water in the spare wheel well, (Recall ID:22V955) our fuel module and fuel pump went out. While driving in traffic on I-5 our car stalled then stopped which put us at risk of a crash.The first time (July 2022) It was repaired by Cooper's Auto Repair), After the 2nd time it failed again in Aug 2022, once again as we were driving, our mechanic at (Boyle's Foreign Car Repair) Aug 2022 & Dec 2022 (replace) decided to do an inspection of the whole car to see why this was happening, upon inspection he found water in the spare wheel well, He pulled out the plug to stop accumulation. 2 months later (Feb 2023 )we received the recall letter. In the letter it states that MBUSA would reimburse repairs performed prior to the recall. MBUSA is now refusing to reimburse for replacement but also refusing to find and fix where the water in entering. We reside in a very wet part of the country and see this as a continuing issue. There also is condensation in the back tail lights, which was not there until this issue started occurring. The car was previously in S Cal so there was no issue with water accumulation until it was moved to the rainy Pacific NW. We are fearful of using this car during very wet times as we do not know if this (failure of pump/module) will occur as well as condensation and water being in the back tail lights possibly resulting in the car stopping during it being driven. Therefore putting our lives in potential danger of an accident.

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ ML350
    - Charlottesville, VA

    The steering column does not operate properly. The column no longer adjusts positions and more importantly, the turn signals work ad-hoc. When you start the vehicle, the turn signals tend to operate properly; however, after driving for approximately 15 minutes, the turn signals operate sporadically. THIS IS A SAFETY CONCERN as it's impossible to know when the turn signal will operate correctly or not, thus creating a hazard to me and others on the road. It is my understanding from investigating this online that this is a systemic issue with this model and not unique to my vehicle (just google "2012 Mercedes ml350 turn signal problems"). I discussed this with Mercedes Benz USA and they told me that the only way to resolve this issue is to replace the steering column (part #: 166-460-62-00) at the cost of $3,373.81. I hope that the NHTSA investigates this further as Mercedes-Benz has decided to ignore this safety issue that may cause harm or death. Sincerely, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

    Source: NHTSA WEB SITE
  • 2012 MERCEDES-BENZ ML350
    - arlington, MA

    Oil leaked thru wiring harness in to ECU and 02 sensors massive damage on car harness

    Source: NHTSA WEB SITE