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2014 Mercedes-Benz ML350 Problems and Recalls

Owners filed 68 complaints with NHTSA about the 2014 Mercedes-Benz ML350, most often about the electrical (29% of complaints). It is the 3rd most complained-about ML350 model year since 2000 and has 4 recalls.

Complaints68
Recalls4
Crashes reported7
Fires reported2
Injuries reported3

Most common 2014 Mercedes-Benz ML350 problems

  1. Electrical

    20 complaints · 29%

    Parts named most often: instrument cluster/panel.

    April 12th 20018 I got in my benz and started it and all the lights on the instrument cluster light up and should go of after a few seconds but the lights did not go of so I put the car in drive and the emergency brake will not release so I had to push really hard on the brake to stop the car I turned it of and waited…
    Owner report to NHTSA, 2018, at 24,851 miles
    Car engine light on. Took to service center. Required software upgrade. Cost $275. Car has 26k miles. This should not be an expense to buyer but should be a warranty issue. Very unhappy with Mercedes-Benz and unlikely to purchase you vehicle in the future. Also, no obvious instruction for checking oil level. Another…
    Owner report to NHTSA, 2018, at 26,000 miles
  2. Engine

    17 complaints · 25%

    Parts named most often: engine.

    The contact owns a 2014 mercedes benz ML350. While driving 40 MPH, the engine stalled. The contact was able to restart the vehicle. The vehicle was towed to a dealer who stated that the engine module pins were defective and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure.…
    Owner report to NHTSA, 2014, at 6,138 miles
    I bought this vehicle new on march 2013. With the time we hear a strange noise, we thought it was normal but that noise was stronger so we went to the dealer garage isla verde mercedes benz, to the maintenance we told to the person about that noise, so they said to US that everything is ok then we ask about the noise…
    Owner report to NHTSA, 2015, at 14,000 miles
  3. Other or unspecified

    17 complaints · 25%

    Half of these problems showed up before 25,000 miles.

    The vehicle's heating, ventilation, and air conditioning systems ('HVAC systems') have a serious design defect that causes the HVAC system to (a) accumulate mold and mildew residue or growth within the HVAC system; (b) emit a moldy or mildewy odor that permeates the vehicle cabin when the HVAC system is activated; and…
    Owner report to NHTSA, 2017, at 18,500 miles
    Rear tailgate opened without being operated as I was entering garage. Rear window hit garage trim and broke. This had happened before driving down the street.
    Owner report to NHTSA, 2018, at 31,000 miles
  4. Fuel system

    12 complaints · 18%

    Half of these problems showed up before 60,000 miles.

    Diesel fuel filter and/or diesel fuel hose leaks spilling highly flammable diesel fuel on the road. The diesel fuel could leak near the heat source or leak onto the road. This could lead to a crash or cause a fire in the presence of an ignition source.
    Owner report to NHTSA, 2016, at 60,000 miles
    Diesel fuel leaks from a tiny crack forming on the oil filter housing. The filter has manufacturing or design defect that causes the bottom housing of the filter to form small cracks prematurely. The mercedes part number of this filter is a 642 090 60 52 manufactured by mann , made in the czech republic. I have…
    Owner report to NHTSA, 2016, at 60,000 miles
  5. Body and structure

    5 complaints · 7%

    Parts named most often: body.

    I was in a collision in which I rear ended another SUV. The speed control did not enable and I hit the other vehicle hard enough to cause $20,000 worth of damage to my car. I believe the car braking response was slow and the airbag should have deployed in a crash that significant, but it did not.
    Owner report to NHTSA, 2017, at 36,000 miles
    In my neighborhood approaching a stop sign about 20 yards away. The car all of a sudden accelerated at a high rate of speed. I was going too fast to make the right turn and the brakes did not stop the car. I ended up running through the stop sign up an incline and into the woods hitting multiple trees before coming to…
    Owner report to NHTSA, 2019, at 47,600 miles
  6. Driver assistance

    5 complaints · 7%

    Parts named most often: blind spot detection, assist, warning.

    The contact owns a 2014 Mercedes-Benz ML350. The contact stated that while driving various speeds, the lane assist feature failed. The lane assist inoperable warning light illuminated. The failure happened intermittently. Mercedes-Benz of novi (39500 grand river ave, novi, mi 48375 ([phone]) diagnosed and repaired the…
    Owner report to NHTSA, 2019, at 60,000 miles
    The contact owns a 2014 Mercedes-Benz ML350. The contact stated that upon starting the vehicle, the blind spot warning light illuminated. The contact was unable to identify if another vehicle was nearby. The vehicle was taken to an independent mechanic who determined that the blind spot detection system was…
    Owner report to NHTSA, 2025, at 170,001 miles
  7. Transmission

    4 complaints · 6%

    While entering the highway, the vehicle shifted at extremely high revs, then became 'stuck' in fourth gear. The manual shifting paddles would not shift the transmission up or down. Placing the vehicle in neutral, and then back into drive had no impact. Vehicle remained in fourth gear. Because I was on a highway, in…
    Owner report to NHTSA, 2015, at 52,000 miles
  8. Air bags

    4 complaints · 6%

    Parts named most often: frontal.

    I was in a collision in which I rear ended another SUV. The speed control did not enable and I hit the other vehicle hard enough to cause $20,000 worth of damage to my car. I believe the car braking response was slow and the airbag should have deployed in a crash that significant, but it did not.
    Owner report to NHTSA, 2017, at 36,000 miles
    The contact owns a 2014 Mercedes-Benz ML350. The contact stated that for the past year, the front passenger side air bag warning indicator illuminated, which was a safety concern. Also, the 'pull over and read service manual' and 'front air bag requires service' messages appeared. The vehicle was taken to the dealer…
    Owner report to NHTSA, 2018, at 29,000 miles

Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.

2014 Mercedes-Benz ML350 recalls

  1. Fuel system: control/drive module

    NHTSA 22V955000 · December 23, 2022 · 348,183 vehicles

    Risk: An engine stall while driving increases the risk of a crash.

    Fix: Dealers will install a water drain plug, inspect for water intrusion, and replace the fuel pump control unit as necessary, free of charge. Owner notification letters were mailed february 15, 2023. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's numbers for this recall are 2023010002 and 2023010003.

    Full defect summary

    Mercedes-benz USA, llc. (mbusa) is recalling certain 2012-2014 ml550, 2012-2015 ml350, amg ml63, 2015 ml250, ml400, 2016 gle450, gle300, 2016-2018 gle350, gle550, 2016-2019 gle400, 2017-2019 amg gle43, and 2016-2020 amg gle63 vehicles. Water might accumulate in the spare tire wheel well and damage the fuel pump control unit, which could cause an engine stall while driving.

  2. Infotainment and connectivity: communication

    NHTSA 19V787000 · November 1, 2019 · 24,226 vehicles

    Risk: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.

    Fix: Mbusa has initiated an over the air (OTA) remote update. Mbusa will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began december 23, 2019. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2019120008.

    Full defect summary

    Mercedes-benz USA, llc. (mbusa) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (ecall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.NHTSA.gov/odi/rcl/2019/rmisc-19v787-4620.pdf

  3. Suspension: front

    NHTSA 18V272000 · April 27, 2018 · 9,725 vehicles

    Risk: The leaking oil in the presence of an ignition source can increase the risk of a fire.

    Fix: Mbusa will notify owners, and dealers will correct the oil level as necessary and replace the reservoir sealing cap to prevent oil foam from leaking out, free of charge. The recall began august 30, 2018. Owners may contact mbusa customer service at 1-800-367-6372. Mbusa's number for this recall is 2018070015.

    Full defect summary

    Mercedes-benz USA, llc. (mbusa) is recalling certain 2012-2014 ml350 bluetec 4matic and ml550 4matic, 2012-2015 ml63 amg 4matic and ml350 4matic, 2013-2016 gl350 bluetec 4matic, gl550 4matic and gl63 amg 4matic, 2017 gls350d 4matic, gls450 4matic, gls550 4matic and gls63 amg 4matic, 2015 ml400 4matic, 2016 gle400 4matic, gle350 4matic, gle63 amg 4matic, gle63s amg 4matic, gle450 4matic coupe and gle63s amg 4matic coupe, 2015-2016 gl450 4matic and 2013-2014 gl450 4matic vehicles equipped with the active curve system (acs). In 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 in the reservoir cap.

  4. Electrical: software

    NHTSA 17V177000 · March 14, 2017 · 51 vehicles

    Risk: If the air bags do not deploy as intended in the event of a crash, there would be an increased risk of injury in the event of a crash.

    Fix: Mbusa will notify owners, and dealers will update software in the affected control units, free of charge. The recall began april 21, 2017. Owners may contact mbusa customer service at 1-800-367-6372.

    Full defect summary

    Mercedes-benz USA, llc (mbusa) is recalling certain 2016 amg gt-s, glc300, cla250 and gle300d 4matic vehicles, 2013 c250, e350 bluetec and g63 amg vehicles, 2008-2014 c300 vehicles, 2013-2014 c300 4matic and ml350 4matic vehicles, 2009 c350 vehicles, 2014 cls550, e350 4matic, e350 coupe 4matic, e350 wagon 4matic, glk350 and sl550 vehicles, 2012 cls550 4matic vehicles, 2012-2016 e350 vehicles, 2016-2017 gl450 4matic vehicles, 2012-2014 ml350 4matic bluetec vehicles, 2015 s550, s550 4matic and c300 4matic sedan vehicles, 2015-2016 c300 sedan vehicles, and 2017 sl63 amg vehicles. Various control units on these vehicles may have been updated with incorrect software, potentially affecting the correct deployment of the air bags in the event of a crash.

Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.

Questions about the 2014 Mercedes-Benz ML350

What are the most common problems with the 2014 Mercedes-Benz ML350?
By NHTSA owner complaints: electrical (20 complaints); engine (17 complaints); other or unspecified (17 complaints, typically around 25,000 miles).
How many recalls does the 2014 Mercedes-Benz ML350 have?
4 recalls listed by NHTSA, the latest from December 23, 2022 (fuel system). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
Is the 2014 a bad year for the Mercedes-Benz ML350?
It is the 3rd most complained-about ML350 model year since 2000, with 68 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.

Other Mercedes-Benz ML350 years

Mercedes-Benz ML350 problems by year