2014 Mercedes-Benz Ml350 problems, complaints & recalls
Most-reported problem areas: Engine (9) · Fuel/Propulsion System (6) · Fuel System, Gasoline (4)
🧭 Reliability snapshot
Compared against other Mercedes-Benz Ml350 model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
34 NHTSA complaints that reported an odometer reading.
Safety recalls (4)
Fuel System, Gasoline:delivery:fuel Pump:control/Drive Module 2022-12-23 · campaign 22V955000 · 348,183 vehicles
Defect: 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.
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.
Communication 2019-11-01 · campaign 19V787000 · 24,226 vehicles
Defect: 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
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.
Suspension:front 2018-04-27 · campaign 18V272000 · 9,725 vehicles
Defect: 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
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.
Electrical System:software 2017-03-14 · campaign 17V177000 · 51 vehicles
Defect: 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 C30
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.
Service bulletins (117)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Service Brakes 2026-09-22 · LI42.10-P-078779 · Service Bulletin/Repair Instructions
complaint repeat workshop visit for vehicle vibration while braking from 60mph. note: although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. cause although the cause of the vibra
Structure:body 2026-09-14 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Steering 2026-08-28 · LI46.35-P-067339 · Service Bulletin/Repair Instructions
complaint during part of the steering movement, it feels heavier or more difficult to steer in the same spot every time. or rattling, humming, dry sliding/gravel noise from the electric steering system when steering (see attachment). complaint does not impact the ability to safely steer or control
Structure:body 2026-08-06 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Power Train 2026-07-14 · LI35.30-P-058566 · Service Bulletin/Repair Instructions
single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). the noise is heard once in each instance when changing direction of travel. note: sound file in attachment cause if the complaint is eliminated by experimentally loosening the outboard collar n
Suspension 2026-07-07 · LI33.20-P-078406 · Service Bulletin/Repair Instructions
complaint creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. sound file attached for comparison. must match noise for proper diagnos
Showing the 6 most recent of 117 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-09-01 · Exterior Lighting“turn signals stop functioning during drive cycles. this functionality is lost for the remainder of the current drive cycle and can be restored with a key cycle. it does not occur every drive cycles and is unpredictable.…”
2026-05-18 · Visibility:sun/Moon Roof Assembly · 108,000 mi“ 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…”
2026-04-06 · Fuel System, Gasoline · 115,000 mi“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: 2…”
2026-01-28 · Unknown Or Other · 🔥 fire“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).…”
2025-12-11 · Service Brakes“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,…”
2025-11-20 · Fuel/Propulsion System“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…”
2025-09-19 · Lane Departure: Blind Spot Detection“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 …”
2025-07-24 · Lane Departure: Blind Spot Detection · 170,001 mi“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 con…”
2025-07-24 · Air Bags“driver side airbag malfunction without notice .serious bodily injury incase of an accident.…”
2025-06-30 · Lane Departure: Blind Spot Detection“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…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.