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ProblemsByVin Index / 2014-MERCEDES-BENZ-ML-CLASS / COMPLAINTS
Full complaint record · NHTSA

2014 Mercedes-Benz ML-Class owner complaints

73 complaints filed with NHTSA on this vehicle , including 1 reporting a crash, fire, injury, or fatality. Showing the 300 most recent — grouped by category for scanning.

other 9 complaints shown

12/13/2024 ODI #11630504.0

I purchased a new vehicle from the dealer in 2014 in 2019 the wood grain trim cracked. I had this replaced by the dealer in 2019. Now again, in 2024, the same issue the wood grain has cracked. This should not be happening every few years.

12/13/2018 16,000 mi ODI #11161202.0

Tailgate opens without being activated. When backing of garage tailgate came open and hit garagedoor opening, causing sheetmetal to bend. This has happened several times.

11/20/2025 ODI #11700540.0

As we were driving 50mph, the car stalled and lost all power. The dashboard lights all lit up and the car wouldn't start. I don't get unnerved easily and it was fairly intense not being able to move your car out of traffic. After about 5 mins, the car would start again only to stop a minute or so later. After taking the car to the dealer, the issue stemmed from the fuel pump electronics board getting wet in the spare tire wheel well where water was accumulating. This was part of the recall and the dealer installed a drain and replaced the board. HOWEVER, this issue again happened nearly one year later in our next rainy season. After taking it to the dealer, they said WE would need to replace the electronics board ourselves. We asked about the recall and they said they fixed the issue by i

10/31/2018 31,000 mi ODI #11144513.0

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.

10/14/2016 60,000 mi ODI #10916045.0

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 searched the internet and this appears to be a systemic problem where the filter forms cracks and leaks diesel fuel. There should be a recall issued for this immediately before there are any vehicle fires as a result of this defect. When the filter leaks, the fuel streams down the center of the engine block and through a weep hole to the bottom of the vehicle near the exhaust. This is in very close proximity to the extremely hot exhaust piping that could ignite the fuel an

10/11/2016 60,000 mi ODI #10915287.0

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.

10/09/2023 ODI #11549073.0

I bought my vehicle into Mercedes Benz for a recall related to water collection in spare tire well which can cause a fuel pump control malfunction, NHTSA recall # 22V955. A few days ago, my vehicle could not start and I found water in my spare tire well. My OBD scanner tells me it is related to the fuel pump. I informed Mercedes Benz and they would not fix it. Obviously the work performed did not correct the recall. I'm writing here hoping I can get connected to the right channel to get this resolved as my vehicle is currently unusable. Thanks.

10/01/2015 18,000 mi ODI #10778999.0

Pulling into garage, put car into "park" and all of sudden, went into "neutral" car started to roll back (floor of garage has slight angle). At first could not put car into "drive". Finally got it into drive, moved car forward and then was able to put it into "park" this happened once before, last year, Mercedes could not find anything wrong. Car being brought to Mercedes on october 5, 2015

09/22/2016 34,000 mi ODI #10908813.0

2014 ml350 shut off while driving in the fast lane of a major highway. I had taken the vehicle for service, then three wks later because the car was losing power. The dealership checked it over the next day and assured me the car was perfect and had found no problems. The next day the car shut-off on the highway. The car was towed to the dealership where they eventually discovered a defect in the car. I no longer feel safe driving this vehicle.

electrical 4 complaints shown

19 total in this category · moderate · avg repair $850 · see electrical cluster analysis →
12/27/2017 ODI #11056890.0

Vehicle made a right-hand turn uphill and completely shut off for 25 minutes; engine and electrical components. Required to manually hold in the brake on an incline until vehicle restarted. Dealership cannot replicate the issue and is returning the vehicle.

12/20/2022 ODI #11498332.0

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. T

11/13/2021 ODI #11440311.0

Instrument Cluster malfunction. Battery drained and replaced. 2.5 weeks later, the new battery drained. After the vehicle was jumpstarted, the instrument cluster remained on with SOS inoperable showing on the panel. The instrument cluster will not turn off, even after the vehicle has been turned off. So it continues to drain the battery. Mercedes has diagnosed the vehicle with a bad instrument cluster and says that it needs to be replaced. There were no warning signs before the malfunction. I drove it and parked it. Then two days later the battery was dead. 10.19.21 - took vehicle to Mercedes for a regular schedule B service 10.21.21 - vehicle battery was dead after trying to crank it. 10.22.21 - Mercedes sent tow truck to bring it back to them. The battery was replaced on 10.25.21 and I p

09/19/2025 ODI #11688328.0

Vehicle: 2014 Mercedes-Benz ML350 VIN: [XXX] I have experienced repeated failures of the Blind Spot Assist / driver-assist system since purchasing this vehicle. When I first purchased the ML350 in Texas, the vehicle already showed warning messages (“Blind Spot Assist Inoperative / Pre-Safe Function Limited”). The dealer attempted repairs before delivery, but the defect persisted. After moving to New York, the problem continued. On June 26, 2023, I took the vehicle to The Automaster Mercedes-Benz in Shelburne, VT. Their diagnosis confirmed water intrusion into the blind spot radar sensors, consistent with Mercedes-Benz TSB LI54.71-P-056477. Both left and right sensors and wiring require replacement. This is a safety defect because Blind Spot Assist and Pre-Safe features are disabled wi

engine 2 complaints shown

8 total in this category · moderate · avg repair $3,100 · see engine cluster analysis →
12/10/2014 6,138 mi ODI #10663351.0

Tl* 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. The approximate failure mileage was 6,138. Updated 7/23/15*cn the consumer requested to have the post removed.

10/11/2022 ODI #11488880.0

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

body 1 complaint shown

12/19/2019 47,600 mi Crash ODI #11290208.0

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 a stop. This caused over $18,000 damage to the vehicle (not including damage to the under carriage). Not only was this pretty frightening but what could have happened if I wasn't in my neighborhood when this took place could have killed somebody. It really shook me up. Thank goodness there were no kids at the bus stop. I was also surprised that the air bags did not deploy. The insurance company totaled the car so no one really seems too concerned about the cause of the unint

brakes 1 complaint shown

12/11/2025 ODI #11704623.0

It seems that this vehicle was not included in a brake booster recall which included this model from 2005 through 2015. The brakes are not working properly, and brake fluid has entered the master brake cylinder damaging the seal. It is extremely unsafe to operate this vehicle in this condition. Somehow, this vehicle was not included in the recall, but definitely should have been.

visibility 1 complaint shown

3 total in this category · moderate · avg repair $350 · see visibility cluster analysis →
11/12/2017 42,400 mi ODI #11045420.0

Suddenly in the morning 3 days ago without hit anything, a crack appeared on my windshield. A long line on the right side where the passenger is sitting, less than 1$ bill. I can't believe that happen in this way.

airbags 1 complaint shown

4 total in this category · severe · avg repair $1,100 · see airbags cluster analysis →
11/02/2018 26,000 mi ODI #11144916.0

Driver's side air bag warning light stays on, dealer says it's the wiring in steering column or the control module and wants about $1100 to fix. Just all of a sudden came on with no other event happening.

steering 1 complaint shown

4 total in this category · severe · avg repair $700 · see steering cluster analysis →
09/12/2022 ODI #11483939.0

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.

Showing 300 of 73 total complaints. The full federal record is available at nhtsa.gov/vehicle/2014/Mercedes-Benz/ML-Class#complaints.
Source: National Highway Traffic Safety Administration (NHTSA) owner complaint database. Last synced 2026-06-14. Complaints are owner-submitted and unverified — the existence of a complaint is not proof of a defect, but a pattern of complaints around the same component is a signal worth weighing. Verify any specific filing at nhtsa.gov.
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