2014 MERCEDES-BENZ ML350 Complaints

View complaints related to 2014 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 2014 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.

  • 2014 MERCEDES-BENZ ML350
    - Calera , AL

    Known defect with timing issues that give code P0016. All cars should be part of this recall regardless of mileage on a known defect. This repair is extremely expensive and wouldn’t be needed if built correctly.

    Source: NHTSA WEB SITE
  • 2014 MERCEDES-BENZ ML350
    - PORT ST LUCIE, FL

    Power Sun ROOF is coming off the tracks of the roof which it is attach to. I feel this is an extreme safety hazard because I believe it will eventually come off my vehicle and cause a serious accident flying into another vehicle or even a pedestrian. This was fixed by Mercedes Benz [ BENZE BUSCH of NJ ] back in to 2018 and now it is doing it again.I Contacted the dealer again about this and they refuse to repair saying Vehicle is out of warranty.I also contacted Mercedes Benz corporate Headquarters and they refuse to acknowledge the problem.Obviously this is a defect in the vehicle. I researched that they have had similar problems with other vehicles SUN ROOF problems and they acknowledge those facts and repaired them. I previously filed a complaint with the NHTSA ID #11478665 but it seems that you didn't have all the facts. Please look into this matter again now that you do. Thank YOU

    Source: NHTSA WEB SITE
  • 2014 MERCEDES-BENZ ML350
    - San Francisco, CA

    The contact owns a 2014 Mercedes-Benz ML350. The contact stated that while at a stop light, the vehicle lost motive and electric power and stalled without warning. The contact restarted the vehicle, but the vehicle failed to remain running. The vehicle was towed to an independent mechanic and the contact was informed that water had intruded into the rear of the vehicle causing electrical failures. The vehicle was not repaired because the Insurance Company deemed the vehicle a total loss. The manufacturer was contacted but offered no assistance. The failure mileage was 60,000. The contact stated that the interior of the vehicle has to be dried out first in order to assess the damage to the electrical system. The contact noted the failure mileage was 60379.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2014 MERCEDES-BENZ ML350
    - Santa Clara, CA

    After a weekend of incessant rain, while driving a short distance (10 minutes) , this low-mileage, well-maintained 8 year old SUV suddenly stalled, Engine appeared to have powered down and the yellow Engine light came up and pressing gas pedal didn't do anything. I was fortunately able to press the Power button once frantically and re-start it once more and pull over to the side but the car refused to power on thereafter. After investigations by the shops, it appears there was water leaking "through" the body of the vehicle and into the area below the interior of the car, short circuiting Fuel Driver and stalling the car (which they subsequently repaired after draining the water and replacing/re-programming the fuel pump driver) before handing it off for the leak identification work. The car was subsequently taken to a specialist shop to figure out the leak, and they are unable to identify any reasonable source of the water leak and insurance is so far claiming this is "wear and tear". In the course of the testing, the *same* issue happened again and the car stalled while driven by the shop personnel and they could hear the sound of water inside the cabin all the way up to the front. They are unable to identify the source(s) of the leak and at this point, the car has been unusable for over 4 weeks as Insurance continues to push back and the shop can't do the additional work to identify the source in the body without insurance approval. I made attempts to contact the manufacturer but their only available contact is their Customer Support (no email/chat option) who refused to discuss this as it didn't pertain to them directly and re-directed me to talk to my own insurance company. I even reached out via Twitter but got no response. This expensive luxury SUV is not just unreliable at this point but *dangerous* where there are mysterious water leaks under natural conditions like rain leading to car stalling while in motion.

    Source: NHTSA WEB SITE
  • 2014 MERCEDES-BENZ ML350
    - Staten Island , NY

    The seals on oil cooler fail which causes leaks Oil dropping on roadway or oil leaking in engine compartment can cause a fire.

    Source: NHTSA WEB SITE
  • 2014 MERCEDES-BENZ ML350
    - Fremont, CA

    After driving the car, the right/left turn signal switch fails to work (no signal is given both in the panel of the car and the external turn signal lights do not flash). However, the emergency flashers still work. I have searched the issue and found many occurrences on the Internet. Such a common issue should be a manufacturing quality issue and deserves a recall.

    Source: NHTSA WEB SITE
  • 2014 MERCEDES-BENZ ML350
    - Chicago , IL

    55,000 Miles now Engine shuts off while driving and steering wheel locks engine light comes on, we have had this problem starting at about 30,000 miles. They first said it was sensors which we replaced several times thousands of dollars later still have problem. It is currently at dealer for a month now and they told us we need a whole engine harness replaced for $11,000 but can't be sure this is the problem. Has anyone else had these problems please contact me [XXX]. [XXX] IL INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

    Source: NHTSA WEB SITE
  • 2014 MERCEDES-BENZ ML350
    - Port St. Lucie, FL

    The contact owns a 2014 Mercedes- ML 350. The contact stated the panoramic roof tracking was shaking and moving slowly. There were no warning indicator lights illuminated. The vehicle was taken to the local dealer but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 59,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2014 MERCEDES-BENZ ML350
    - PHILADELPHIA, PA

    The oil fuel line is leaking on the engine this is currently a recall on my year and model suv

    Source: NHTSA WEB SITE
  • 2014 MERCEDES-BENZ ML350
    - Deltona , FL

    Every time I turn on my AC it’s stink though Mercedes is recalling AC with mildew in it.. It’s been 3 years, I’ve waited..

    Source: NHTSA WEB SITE