Mercedes-Benz ML350 Electrical System Problems

Source: NHTSA · Updated Sep 28, 2026 · 158 complaints analyzed

Owners have filed 158 complaints with NHTSA about electrical system problems on the Mercedes-Benz ML350 across 12 model years. The 2006 model year has the most (29). The words owners use most often: “turn signals” (7% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Turn signals: mentioned in 11 of 158 complaints (7%)
  • Blind spot assist: mentioned in 8 of 158 complaints (5%)
  • Fire department: mentioned in 8 of 158 complaints (5%)

At what mileage do electrical system problems happen?

Based on 103 complaints that reported the odometer reading.

Under 10k miles3 · 3%
10k–25k miles6 · 6%
25k–50k miles17 · 17%
50k–75k miles21 · 20%
75k–100k miles25 · 24%
100k–150k miles27 · 26%
150k+ miles4 · 4%

How serious are the reports?

Of 158 complaints, 4 mention a crash, 28 a fire, 2 an injury.

Mercedes-Benz ML350 electrical system complaints by model year

Peak: 2006, with 29 complaints
2003: 4200342004: 4200442006: 292006292007: 192007192008: 132008132009: 172009172010: 102010102011: 162011162012: 112012112013: 112013112014: 202014202015: 420154

n = 158 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2015 ML35048%11,650
2014 ML3502029%43,000
2013 ML3501120%80,000
2012 ML3501117%63,450
2011 ML3501614%56,957
2010 ML3501010%70,000
2009 ML3501718%104,284
2008 ML3501319%107,500
2007 ML3501923%80,000
2006 ML3502917%67,275
2004 ML350411%100,000
2003 ML350416%77,500

When owners reported it

Peak: 2016, with 16 complaints
2006: 220062007: 12008: 420082009: 12010: 520102011: 32012: 120122013: 62014: 1220142015: 142016: 162016162017: 16162018: 1320182019: 112020: 620202021: 52022: 1420222023: 92024: 620242025: 102026: 32026

n = 158 complaints · Source: NHTSA

Related recalls (1)

Electrical system:software; air bags:frontal:sensor/control module-inactiveMar 14, 2017 · NHTSA campaign 17V177000 · 51 vehicles

Model years: 2012, 2013, 2014

Problem: 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 C300 4Matic Sedan vehicles, 2015-2016 C300 Sedan vehicles, and 2017 SL63 AMG vehicles. Various control units on these vehicles may have been updated with incorrect software, potentially affecting the correct deployment of the air bags in the event of a crash.

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.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

NHTSA VEHICLE SAFETY COMPLAINT SUPPORTING STATEMENT Vehicle: 2013 Mercedes-Benz ML350 I am submitting this complaint regarding a continuing safety concern involving water intrusion and electronic system damage in my 2013 Mercedes-Benz ML350. My vehicle was subject to a Mercedes-Benz recall…

Received Jun 1, 2026 · NHTSA complaint 11741266

The contact owns a 2009 Mercedes-Benz ML350. The contact stated that while driving 50 MPH on the parkway, the contact heard a noise and several warning lights illuminated. An independent mechanic was contacted. The vehicle was taken to an independent mechanic, where it was diagnosed, and determined…

Received Mar 24, 2026 · NHTSA complaint 11726683

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…

Received Jan 19, 2026 · NHTSA complaint 11711956

Good morning ! I am an owner of a 2013 ML 350 . I live in San Diego ,CA ,92103 . I was driving my car on [XXX] and it was raining a lot . After around 30 miles I got to my destination parking area and my car died 20 feet away from the parking zone .I tried to reignite it but it wouldn’t start . I…

Received Nov 17, 2025 · NHTSA complaint 11699776

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…

Received Sep 19, 2025 · NHTSA complaint 11688328

Frequently asked questions

Do all Mercedes-Benz ML350s have electrical system problems?

No. NHTSA has 158 owner complaints about electrical system for the Mercedes-Benz ML350. Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the Mercedes-Benz ML350 electrical system?

Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

What do owners say about electrical system problems on the Mercedes-Benz ML350?

The most frequent phrase is “turn signals”, in 11 of 158 complaints, followed by “blind spot assist” (8).

Other Mercedes-Benz ML350 problems

See all Mercedes-Benz ML350 problems.