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10.0

really awful
Crashes / Fires:
3 / 1
Injuries / Deaths:
1 / 0
Average Mileage:
18,136 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2014 Mercedes-Benz ML350 miscellaneous problems

miscellaneous problem

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2014 Mercedes-Benz ML350 Owner Comments

problem #16

Oct 052023

ML350

  • miles

A D V E R T I S E M E N T S

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.

- Whitestone, NY, USA

problem #15

Mar 032023

ML350

  • miles
I am writing in regards to my 2014 ML 350 Suv. The check engine light came on and upon taking it to the mercedes dealership, I was told the issue is that the camshaft adjusters have failed and need to be replaced. The cost quoted is over $11,000 to repair. Upon further investigation I found reports on multiple lawsuits for the Mercedes C series for the same year (2012-2014) that resulted also in a recall whereby customers were given a recall to replace at no charge the camshaft adjusters up to 120k miles. My car only has 83k and I am told by two independent mechanics that the camshaft adjuster should not be failing like this and that this has been an ongoing issue with Mercedes. The safety issue is that I am told by independent mechanics that what could happen over time is that I could be driving and the entire engine/power just shuts off. This could even happen at high speeds on the highway. The mercedes dealer tells me there is no safety issues that could result from camshaft adjuster problems which doesn't appear to be true as per the other independent mechanics. I request further investigation into this issue because as per the independent mechanics its the "same engine" as the 2012-2014 that are under the recall. I'm requesting a recall on this for my car that Mercedes pays for. This should not be failing especially in a car with only 83k on it. If the C series 2012-2014 received recall on this part then I also think my ML 350 should be covered. Mercedes customer service tells me they cannot pay for the repair, they said I could file complaint for recall through NHTSA Thank you.

- San Francisco , CA, USA

problem #14

Jan 182023

ML350

  • miles
Unknown

- Sharpsburg, NC, USA

problem #13

Apr 282019

ML350

  • miles

A D V E R T I S E M E N T S

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..

- Deltona , FL, USA

problem #12

Apr 152022

ML350

  • miles
Campaign no. 2012070002 SB-10048279-4718 Same solenoid leaking issue onto wiring harness for my 2014 Mercedes ML350 need this to be initiated because mercedes is at fault for not fixing this issue in 2006-2012 now still issue in 2014.

- Bend, OR, USA

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problem #11

Feb 242022

ML350

  • miles
Other that other 2014 ml350 have a recall for oil leaking from the reserve. Seems like my vehicle is affected by this issue as well, oil leak when low

- Miami, FL, USA

problem #10

Dec 162019

ML350

  • 47,600 miles

A D V E R T I S E M E N T S

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 unintended acceleration that totaled my car while driving in my own neighborhood! this should not have happened. I hope someone will care enough to try and determine what happened so this doesn't happen to someone else.

- Chesterfield, VA, USA

problem #9

Jun 122018

ML350

  • 16,000 miles
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.

- Orange Park, FL, USA

problem #8

Oct 312018

ML350

  • 31,000 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.

- Orange Park, FL, USA

problem #7

Jul 052018

ML350

  • 60,000 miles
No light or warning alarm if tailgate is open. You may drive car with no light on dashboard indicating that tailgate is open. May crash tailgate and break the glass if drive into a garage. Drove car into garage to park and crashed the tailgate.

- Pittsford, NY, USA

problem #6

Apr 282018

ML350

  • 47,000 miles

A D V E R T I S E M E N T S

Sunroof exploding - was driving on the freeway at around 70mph when I heard a loud bang. I could tell it came from above and could tell the sunroof had shattered. I came to a safe stop to inspect and my suspicions were proven right. It happened suddenly without any warning. There were no trucks near me. Neither was I driving under an overpass. There was no impact from anything. I have attached a photo of the damage. I called the dealer (Mercedes Benz of houston North) and they have told me that they were sorry to hear that and that I would have to pay $200 just to get my car inspected (not even repaired). Very frustrated at the moment.

- Houston, TX, USA

problem #5

Feb 012018

ML350

  • 68 miles
1. it was on I-15 highway North bound around 9:44 am, 2/1/2018. 2. this vehicle suddenly lost power and applied brake by itself ! that resulted in drastically speed drop in a very short time. I tried to gas it and I can feel engine is still running, but speed was kept dropping. 3. I almost hit by the cars behind me during the time I tried to pull over to road side. 4. when I fully stopped on I-15 road side, engine is still responsive (RPM can go up), but the car can't move forward. I tried to release brake with transmission still in "D", it's funny that this vehicle started to move backward (it was a uphill section). 5. finally, I turned off engine and restarted it, the car was restored in "normal" state. Just like nothing happened. How ironic it is ! 6. there are no warning/error lights on !!! 7. this car is already in dealer for 2 weeks and they still can't find the root cause. I strongly believe that there could be design flaws. This time me and those drivers behind me were just lucky, there was not a serious accident happened. Something need to be done before someone is killed by this issue. 8. I have dash cam video stored on google drive. Here is the link: Https://drive.google.com/file/D/1V67T9eqw3N_I2dtw_L-G7C-exybwdkhf/view 9. speed unit on video is kmh, instead of mph. Also, the time zoom of dash cam is not properly set. The time shown on this video is actually 16 hours ahead of the local time. But it is not a big deal here. 10. at 42 sec of this video, you can see the speed is suddenly dropped and can also hear tire squeezing sound (car applied brake by itself). 11. this car can't move forward by the engine at (1'52" ~ 1'55"), (2'34" ~ 2'37") and (2'54" ~ 2'57"). 12. With transmission is still in "D" and brake released, the car moved backward because it was on a uphill section (2'23" ~ 2'30").

- San Diego, CA, USA

problem #4

Jul 202017

ML350

  • 18,500 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 (C) cause the vehicle's passenger cabin to be unbearable and thus unusable for its intended purpose. It lacks a way to properly dispose of the water left in the system due to condensation and this in turns creates a suitable environment for the growth of bacteria, fungus, mold, and spores, which then are blown into the passenger cabin when the HVAC system is in use. This seems to be a known issue with Mercedes-Benz cars which has not been addressed by the manufacturer. It makes it very unpleasant to drive the car when you need to turn on the A/C for a car that is practically new.

- Raleigh, NC, USA

problem #3

Sep 132016

ML350

  • 34,000 miles
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.

- Haverhill, MA, USA

problem #2

Sep 302015

ML350

  • 18,000 miles
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

- Delray Beach, FL, USA

problem #1

Apr 222013

ML350

  • 18,000 miles
Hit in the head in April 2015 by SUV rear power lift gate causing traumatic brain injury. Design flaw in most SUV rear lift gate. I believe Chrysler has one that beeps when lift gate is lowering but others do not. Also they should be designed like garage doors in that a sensor can stop progression of downward movement when tailgates lowers there by stopping any further injury to individuals - especially older individuals and children.

- Ponte Vedra Beach, FL, USA

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