2014 Mercedes-Benz ML350 Electrical system Problems
- Complaints
- 20about this part
- Share
- 29%of 68 total for the year
- Median mileage
- 43,000miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 20 complaints about the electrical system of the 2014 Mercedes-Benz ML350, 29% of the 68 complaints for this model year. Where a mileage was given, the median is 43,000 miles. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“April 12th 20018 I got in my benz and started it and all the lights on the instrument cluster light up and should go of after a few seconds but the lights did not go of so I put the car in drive and the emergency brake will not release so I had to push really hard on the brake to stop the car I turned it of and waited a few seconds and strated it again so thai can reverse it back in the park spot however when I put the sun in reverse it started going forward and all the lights are still on and the emergency brake still will not release so I keep pushing really hard on the brakes and put the…”
NHTSA complaint #11092179, filed 2018-05, 24,851 miles“Car engine light on. Took to service center. Required software upgrade. Cost $275. Car has 26k miles. This should not be an expense to buyer but should be a warranty issue. Very unhappy with Mercedes-Benz and unlikely to purchase you vehicle in the future. Also, no obvious instruction for checking oil level. Another ruse by Mercedes-Benz to wring additional $$ out if consumers.”
NHTSA complaint #11094095, filed 2018-05, 26,000 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. …”
NHTSA complaint #11511621, filed 2023-03“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. …”
NHTSA complaint #11657305, filed 2025-04“3 electrical related issues within a few months. 1. Blind spot and Lane Departure warning come on and off while driving. 2. Blind spot yellow light comes on the side mirrors while applying break 3. This week the turn signal periodically stop working and each time have to stop kill engine and start engine again to reset but reset only last for a while.”
NHTSA complaint #11426314, filed 2021-07Related recalls
- 17V177000Mar 14, 2017Mercedes-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…Covers: Mercedes-Benz ML350 2012–2014, C300 2008–2016, E350 2012–2016 +13 more
Related service bulletins
- 11033185May 26, 2026Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the…
- 11020872Jul 16, 2025Complaint Commissioning not possible after replacement of TRANSMISSION 722.9 or of electrohydraulic controller unit (EHS) or of repair kit controller unit (VGS). Cause The wrong…
- 11018626May 22, 2025Complaint After a software update of HERMES communication module N112/9 has been performed on a gray import vehicle, the message "SOS - Service not activated" is displayed in the…
- 11015640Mar 5, 2025Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
- 11013305Jan 24, 2025Complaint Windows of the front doors poorly adjusted/sluggish Cause The settings of the front windows may be set incorrectly Remedy Adjustment of the windows or window guides as…
- 11013086Jan 15, 2025Complaint The flap of the reversing camera opens and closes by itself during forward travel several times during the trip. No camera image is displayed in the head unit. The…
- 11010907Nov 25, 2024Complaint The flap of the reversing camera opens and closes by itself during forward travel. This happens several times during the trip. The customer notices the sound of opening…
- 11010755Nov 20, 2024Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the…
- 11008880Oct 3, 2024Complaint After a control unit replacement of "N112/9 - control unit for telematics services (HERMES)" or the "N112/2 - control unit for telematics services (RAMSES)", the…
- 11008091Sep 28, 2024Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2015 | 4 | 8% |
| 2014 | 20 | 29% |
| 2013 | 11 | 19% |
| 2012 | 11 | 17% |
| 2011 | 16 | 14% |
| 2010 | 10 | 10% |
| 2009 | 17 | 18% |
| 2008 | 13 | 19% |
| 2007 | 19 | 23% |
| 2006 | 29 | 17% |
| 2004 | 4 | 11% |
| 2003 | 4 | 16% |
Other parts of the 2014 Mercedes-Benz ML350
17 complaintsEngine
16 complaintsFuel system
12 complaintsLane departure
5 complaintsBody and structure
5 complaintsAir bags
4 complaintsSteering
4 complaintsTransmission and drivetrain
4 complaintsVehicle speed control
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsExterior lighting
2 complaintsWheels
2 complaints
← All problems reported for the 2014 Mercedes-Benz ML350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology