2015 Mercedes-Benz ML350 Problems, Complaints & Recalls

Source: NHTSA · Updated May 22, 2026 · 52 owner complaints analyzed

Compared with other ML350 years
Fewer complaints than other years 10th of 14 for complaints
NHTSA crash rating
Not rated

Owners have filed 52 complaints with NHTSA about the 2015 Mercedes-Benz ML350. That ranks 10th out of 14 ML350 model years for complaints. The most reported problem area is engine (11 complaints, 21%), typically at around 15,750 miles. Complaints mention 10 crashes, 4 injuries. There are 5 safety recalls covering this model year.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2015 Mercedes-Benz ML350 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Engine11 · ~15,750 mi
Unknown or Other9 · ~9,400 mi
Power Train7 · ~11,550 mi
Service Brakes6 · ~13,100 mi
Electrical System4 · ~11,650 mi
Fuel/propulsion System4 · ~19,000 mi
Fuel System, Diesel4 · ~96,000 mi
Fuel System, Gasoline4 · ~96,000 mi
Steering4 · ~3,800 mi
Structure4 · ~5,000 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Engine1121%15,750——
Unknown or Other917%9,400——
Power Train713%11,550——
Service Brakes612%13,100——
Electrical System48%11,650——
Fuel/propulsion System48%19,000——
Fuel System, Diesel48%96,000——
Fuel System, Gasoline48%96,000——
Steering48%3,800——
Structure48%5,000——
Suspension48%30,000——
Air Bags36%60,001——
Vehicle Speed Control36%19,000——
Seat Belts24%67,500——
Visibility24%22,000——
Engine and Engine Cooling12%70,273——
Equipment Adaptive/mobility12%3,500——
Exterior Lighting12%———
Lane Departure12%———
Latches/locks/linkages12%58,000——
Tires12%———
Wheels12%150——

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2022, with 9 complaints
2015: 5201552016: 8201682017: 4201742018: 3201832019: 4201942021: 1202112022: 9202292023: 9202392024: 4202442025: 2202522026: 320263

n = 52 complaints · Source: NHTSA

2015 Mercedes-Benz ML350 recalls (5)

Tap a recall to see the problem, the risk and the fix.

Fuel system, gasoline:delivery:fuel pump:control/drive module; fuel system, diesel:delivery:fuel pump:control/drive moduleDec 23, 2022 · NHTSA campaign 22V955000 · 348,183 vehicles

Problem: 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.

CommunicationNov 1, 2019 · NHTSA campaign 19V787000 · 24,226 vehicles

Problem: 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:frontApr 27, 2018 · NHTSA campaign 18V272000 · 9,725 vehicles

Problem: 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.

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.

Power train:axle assembly:axle shaftDec 14, 2016 · NHTSA campaign 16V900000 · 48 vehicles

Problem: Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 GL350 4Matic Blutec, GL450 4Matic, GL550 4Matic, ML250 Blutec, ML350, ML350 4Matic, ML400 4Matic and 2015-2016 GL63 AMG 4Matic vehicles manufactured September 29, 2014 through March 27, 2015. The affected vehicles have axle bolts on the front and/or rear drive axle carriers that may not have been assembled correctly. As a result, the remaining bolts may fracture.

Risk: If any of the remaining front or rear axle bolts fracture, the vehicle may be unstable, reducing the handling capability and increasing the risk of a crash.

Fix: MBUSA will notify owners, and dealers will replace the axle carrier bolts, free of charge. The recall is began February 2017. Owners may contact MBUSA customer service at 1-800-367-6372.

Seat belts:rear/otherJun 16, 2016 · NHTSA campaign 16V442000 · 423 vehicles

Problem: Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2015 ML250, ML350, ML350 4Matic, ML400 4Matic, ML63 AMG, and 2016 GLE450 AMG 4Matic vehicles manufactured from April 27, 2015, through May 19, 2015. The affected vehicles may have had the right rear seatbelt anchor bolt incorrectly installed.

Risk: In the event of a vehicle crash, the right rear seatbelt anchor bolt could fail to secure the passenger, increasing their risk of injury.

Fix: MBUSA will notify owners, and dealers will inspect and, if necessary, correct the installation of the right rear seat belt anchor bolt, free of charge. The recall began on July 22, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

The failed/malfunctioning component appears to be the fuel pump controller / fuel pump control unit, and possibly the fuel pump system. The Mercedes-Benz dealer identified water/moisture-related damage and corrosion at the fuel pump controller area. The failed component should be available for…

Fuel/propulsion System · received May 22, 2026 · NHTSA complaint 11739473

In July 2025, the sunroof panel had lifes and was flapping at highway speeds. I immediately contacted a Mercedes-Benz dealer to report the hazard. I was told they were unaware of such an issue and that I would have to pay for the repair out-of-pocket. Due to financial hardship, I could not afford…

Unknown or Other · received Feb 20, 2026 · NHTSA complaint 11719355

In mid-trip as we were going down the highway went to change lanes and the turn signals were no longer functioning. No errors, no alerts, no warnings they just stopped working. After pulling over and turning off the vehicle and turning back on they work for a time then stop working again. After…

Lane Departure · received Jan 19, 2026 · NHTSA complaint 11711956

Cam Shaft replacement diagnosed after week and half visit to Mercedes Benz dealership for engine rattling at cold start up. We are left with a $10,000 repair after performing all scheduled maintenance at the Mercedes Benz dealership since owning in 2015.

Engine · received Jul 28, 2025 · NHTSA complaint 11676806

The contact owns a 2015 Mercedes-Benz ML350. The contact stated that while driving at various speeds, the vehicle shook abnormally before the vehicle lost automotive power. The contact was able to restart the vehicle and take the vehicle to a local dealer. The contact stated that the vehicle was…

Fuel System, Diesel · received Apr 4, 2025 · NHTSA complaint 11652759

Other Mercedes-Benz ML350 years

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See all Mercedes-Benz ML350 problems by year, every Mercedes-Benz model, or the Mercedes-Benz VIN decoder.

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Frequently asked questions

What are the most common problems with the 2015 Mercedes-Benz ML350?

Owners most often report engine, unknown or other, power train problems. The top one, engine, accounts for 11 complaints.

Was there a recall on the 2015 Mercedes-Benz ML350?

Yes, 5 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2015 Mercedes-Benz ML350 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other ML350 model years, the 2015 has fewer complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.