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2014 Mercedes-benz Ml-class

The Verdict

81 Smooth Ride

The 2014 Mercedes-benz Ml-class has 73 owner complaints filed with NHTSA. The most reported issues are engine (29 complaints) and body (26 complaints). With a Klunk Score of 81/100, it earns a "Smooth Ride" rating. If you're shopping for a Mercedes-benz Ml-class, consider the 2013 model year which has 15% fewer complaints.

Safe Bet

The 2013 has 15% fewer complaints

View the 2013 Mercedes-benz Ml-class dashboard →

81

Klunk Score: Smooth Ride

This vehicle year has significantly fewer complaints than average. A reliable choice.

How is this calculated?

The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.

Get notified if a recall hits this car.

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Under the Hood

Each number is a complaint. Darker = bigger problem.

YearBodyBrakesElectricalEngineTransmission
201214114333
20132369195
201426114293
20152656227

By Category

Engine
29
Body
26
Electrical
14
Transmission
3
Brakes
1

By Severity

1
37
2
27
3
1
4
8

Worst Problems

Complaints

Body 1

 The contact owns a 2014 MERCEDES-BENZ E350. The contact stated while driving 60 MPH on the freeway, there was a popping noise coming from the sunroof and discovered it was shattered. The vehicle was not taken to the dealer or an independent mechanic for diganoses .The vehicle was not repaired The manufacturer was not notified of the failure. The approximate failure mileage was 108,000 .

2mo ago
Engine 1

The contact owns a 2014 Mercedes-Benz ML350. The contact stated that while driving at 35 MPH and accelerating above 40 MPH, the vehicle failed to accelerate above 40 MPH before it lost automotive power. The vehicle was driven back to the residence. The vehicle was diagnosed by the dealer, and the failure was associated with NHTSA Campaign Number: 22V955000 (FUEL SYSTEM, DIESEL, FUEL SYSTEM, GASOLINE); however, the VIN was not associated with the recall repair. The vehicle was repaired out of pocket. The manufacturer was notified of the failure. The failure mileage was 115,000.

3mo ago
Engine 1

The contact owns a 2014 Mercedes-Benz ML63 AMG. The contact stated that the vehicle was experiencing front suspension, coolant, and oil leak failures. The contact stated that the front suspension unexpectedly lowered while the vehicle was parked or while driving. The message "Active Curve System Malfunction" was displayed. The vehicle was towed to the dealer, where unknown repairs were performed. Additionally, the contact noticed a coolant leak in the garage, where the vehicle was parked. The vehicle was taken to two certified independent mechanics, where unknown repairs were performed; however, the failure recurred. The vehicle was taken to the dealer, where the seals were inspected and corrected, and it was diagnosed that the front left cylinder and the lower and upper radiator hoses were leaking. Additionally, a leak was found at the firewall connection. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to the dealer, where the same assessment was made, and the vehicle was repaired; however, the failure persisted. The contact stated while at a complete stop at the red traffic light, the vehicle stalled and failed to restart. The vehicle was pushed into a parking lot with assistance. A warning light for key fob battery drainage was illuminated. The vehicle was towed to an independent mechanic, where the failure was related to an unknown recall, and the contact was referred to the dealer. The contact stated that the dealer had previously completed the repair of NHTSA Campaign Number: 22V955000 (Fuel System, Diesel, Fuel System, Gasoline); however, the recall repair had failed to fix the vehicle. The vehicle recently stalled and was towed to the dealer, where it remained. The vehicle was not repaired. The manufacturer was notified of the failure, and the case was escalated to an Executive. The failure mileage was approximately 100,000.

4mo ago
Body 4

Today at 1/27/25 630 pm my vehicle caught fire.i was told that the vehicle was subject to the Active Curve System (Recall 18V272) and Fuel Pump (Recall 23V010).

5mo ago
Brakes 2

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.

7mo ago
Engine 2

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 installing the drain plug and there was nothing else they could do for us. Even the service adjuster was upset and very sympathetic to our plight as the car was obviously not fixed. Even though the drain plug was installed, the water was still acumulating in the wheel well. It seems apparent to me, and several others who have complained about the same issue, that the recall fix has not addressed the main issue of why the water is coming in and why it's still not draining. Unfortunately we're going to have to fork over 1200 to have it fixed. My ask to the NHTSA is that this issue be readdressed with Mercedes. I would like them to be notified that the recall does not address the underlying issues and the solution they provided does not fix the problem. I appreciate your time in considering this.

8mo ago
Electrical 1

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 without warning, increasing risk of collision when changing lanes. Many other owners have reported the same issue, and Mercedes has issued a TSB acknowledging the defect, but no recall has been provided. I request that NHTSA investigate this recurring safety problem and require Mercedes-Benz to provide coverage or a recall for affected vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

10mo ago
Electrical 1

Driver side airbag malfunction without notice .serious bodily injury incase of an accident.

11mo ago
Body 1

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 inoperative. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 170,001.

11mo ago
Engine 1

I purchased a used Mercedes-Benz from Freehold Mitsubishi in early 2024. Within hours, serious safety issues appeared, including a check engine light, cylinder misfire, EVAP leak, traction control failure, and blind spot assist malfunction. The vehicle’s ECM and wiring harness were later found damaged due to oil leaks and electrical shorts. Despite multiple repair attempts, the vehicle was returned in worse condition and remains unsafe to drive. I am reporting these issues due to their potential risk to vehicle safety.

12mo ago
Engine 1

The contact owns a 2014 Mercedes-Benz ML350. The contact stated while the vehicle was idling in the driveway, the vehicle stalled. The contact stated that AAA added fuel to the vehicle, and the vehicle was able to restart and operated as needed. The contact stated that the vehicle was taken to the dealer for the recall repair of NHTSA Campaign Number: 22V955000 (Fuel System, Diesel, Fuel System, Gasoline), and the dealer installed a water drain plug on the vehicle. The contact stated that the check engine warning light was later intermittently illuminated. The vehicle was taken to Complete Performance, where it was diagnosed with fuel pressure failure. The contact replaced the gas cap; however, the failure persisted. Additionally, the contact stated while driving 45 MPH, the vehicle stalled while there was sufficient fuel in the fuel tank. The contact was able to pull over to the side of the road. The vehicle was able to restart after fuel was added to the vehicle. An unknown dealer was notified of the failure and informed the contact that the fuel pump was not previously replaced during the recall repair of NHTSA Campaign Number: 22V955000( Fuel System, Diesel, Fuel System, Gasoline). The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 60,000.

13mo ago
Engine 1

I purchased my car used at the Mercedes dealership in Tyler Texas June 2023. I took all my savings and paid cash and was told that the car was impeccable shape and there were no current issues and all the service records were up to date. November 2023 is when everything started happening and my engine light came on. It was revealed to me by a service tech that I was sold the vehicle with an existing major oil leak /seals broke. Etc. SEE Attached invoices. I have endured driving down the road and my car just giving out and losing power steering. The car has been sputtering and there have been misfires, fauled fuel injectors, coils, s and spark plugs, oil leaks, fuel pump leaking gasoline in the engine and smoke coming from the hood. I thought my car was going to start on fire it smelled like a hot electrical wires and gasoline. My nerves are frayed from this car because of how many times it has broke down. I have missed work because of the car, I'm behind on my home bills, I missed my airline flight to see my sick father, I have had to pay for rental cars, all due to this vehicle. I am very concerned for my safety in this vehicle and I would like the vehicle fixed at the expense of Mercedes or my money back. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

14mo ago
Body 4

I purchased four brand new "GoodYear" tires with this location in February 2024. Within two months of this purchase, I experienced two flat tires in which both times I had to pay $87 and some change. Addtionally, within a year, two of the tires became bald, indicating premature wear. Tragically, this month, the bald tires contributed to a car accident, resulting in damages of my vehicle and loss of time from work. This incident has caused significant distress and has raised serious concerns about the quality of the tires and the services provided from this location. I have attempted to resolve this matter directly with the service center and cooperate office. To this day, no adequate response has been addressed to resolve my concerns. I'm glad to live to be able to tell my story and advocate for others!!! Tire Size 255/50R19`

15mo ago
Engine 2

Vehicle failed oil consumption test. Vehicle has been leaking and/or losing oil for months despite the issue being alleged fixed under NHTSA recall 18V272. The issue is ongoing and Mercedes Jacksonville is claiming the oil leak is from another issue not covered under warranty or recall order. I do not believe they are unrelated and they have not been able to identify the exact issue.

18mo ago
Body 1

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.

19mo ago
Engine 1

ML350 engine stalled while driving on an expressway and would not turn back on. ML350 needed to be towed where it was determined that water accumulated in the spare tire wheel well, leading to the fuel pump short circuiting. This is directly related to NHTSA campaign 22V955000. That recall repair was completed prior to this incident. Per the technician, the recall repair installed a water drain plug to prevent the water accumulation. This repair effectively failed - the drain plugs malfunctioned and were not allowing water to drain. MBUSA deny’s responsibility for the failing drain plug - stating that the trunk weatherstripping is the root cause, not the failing drain plug. This is an unacceptable response and worth of the recall being expanded. The fuel pump control unit can still short out if MBUSA’s poor excuse of a recall fix fails as it did with mine.

24mo ago
Electrical 1

See attached document for complaint

29mo ago
Engine 1

The contact owns a 2014 Mercedes-Benz ML350. The contact had received notification of NHTSA Campaign Number: 22V955000 (Fuel System, Diesel, Fuel System, Gasoline). The vehicle was taken to a dealer and the recall repair was performed. Soon after the recall repair, while the contact's wife was driving 25 MPH, the vehicle stalled. The contact was unaware if any warning lights had illuminated during the failure. The vehicle was towed to an independent mechanic where it was discovered that there was moisture in the spare tire wheel well. The moisture damaged the fuel pump control unit which was linked to the recall. The contact attempted to reach the manufacturer but was unsuccessful. The vehicle was taken back to the dealer but was not repaired and remained in dealer possession. The failure mileage was unknown.

29mo ago
Engine 2

The contact owns a 2014 Mercedes-Benz AMG ML63. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated on the instrument panel with the "Low Hydraulic Fluid" message displayed. After a visual inspection of the engine compartment, the contact observed hydraulic fluid covering the engine. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure but did not assist. The failure mileage was 50,000.

30mo ago
Engine 1

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.

33mo ago

73 total

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