2021 Mercedes-Benz E350 Electrical system Problems
- Complaints
- 4about this part
- Share
- 31%of 13 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2021 Mercedes-Benz E350, 31% of the 13 complaints for this model year. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“FIRE FIRE FIRE Information light came on just saying 12 Volt Battery. I sat in the car letting it idle for about 3 minutes. It began to smoke and then burst into flames. I called 911 got the fire department here but by the time they were here there was not much left. The car essentially burned to the ground and insurance has declared it a total loss. Car was in my driveway, was certainly a danger to me, to my house and to my neighbor's cars and house.”
NHTSA complaint #11629406, filed 2024-12“1) Rear view camera sometimes working, some times not working. (Message reads “system inoperative “ 2) Forward view camera also affected. 3) display shown “12V battery low in battery “ 4) Not long ago, just had vehicle suddenly vibrating vigorously while backing up from parking and during driving. Gas paddle not responding when stepping down, ( vehicle was then towed to dealer and they updated some kind of electrical thing)”
NHTSA complaint #11649636, filed 2025-03“The engine is misfiring and not powering correctly during driving. Car is failing to take off and today almost caused an accident due to the car would not pull off from the traffic light with oncoming traffic due to loss of power. …”
NHTSA complaint #11571057, filed 2024-02Related recalls
- 21V354000May 14, 2021Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class…Covers: Mercedes-Benz E350 2021, A 220 2019–2021, GLE 450 2020–2021 +29 more
Related service bulletins
- 11036511Aug 24, 2026Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket…
- 11036190Aug 6, 2026Complaint A popup is seen on the HU with the message "data connection temporarily not available". Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search…
- 11035270Jul 27, 2026• Always use the latest XENTRY Diagnosis software release with all available add-ons. • Make sure to follow the operation steps exactly as described in XENTRY Diagnosis! • Use a…
- 11035120Jul 17, 2026Complaint Hand detection system – malfunction / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping…
- 11033855Jun 12, 2026Complaint Service code B1 displayed in the customer menu does not match the workshop code displayed in the workshop menu, e.g., 505 or 550A, which includes a service A. Cause The…
- 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…
- 11033016May 26, 2026Complaint The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the HERMES control unit (N112/9) is not supported for gray-market…
- 11031256Apr 2, 2026Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: when stored in trouser pocket…
- 11029927Mar 4, 2026Complaint Yellow information message in driver display (instrument cluster): "Switch on motor to charge the 12V battery" Cause The state of charge (SOC) of the 12V battery has…
- 11029087Feb 27, 2026Complaint This LI does Not apply to 223 or 206 which use a different generation of 48V systems. Please follow the relevant guided tests for the 223 and 206. For 223 with fault…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 2 | 40% |
| 2023 | 1 | 17% |
| 2022 | 1 | 11% |
| 2021 | 4 | 31% |
| 2020 | 2 | 25% |
| 2017 | 1 | 14% |
| 2016 | 9 | 18% |
| 2015 | 5 | 16% |
| 2014 | 38 | 14% |
| 2013 | 12 | 7% |
| 2012 | 19 | 9% |
| 2011 | 4 | 2% |
| 2010 | 17 | 9% |
| 2009 | 3 | 5% |
| 2008 | 18 | 10% |
| 2007 | 17 | 5% |
| 2006 | 19 | 5% |
| 2005 | 2 | 13% |
| 2004 | 1 | 10% |
| 2003 | 2 | 29% |
Other parts of the 2021 Mercedes-Benz E350
4 complaintsBack-over prevention (rear camera)
3 complaintsFuel system
3 complaintsTransmission and drivetrain
3 complaintsBrakes
1 complaints
← All problems reported for the 2021 Mercedes-Benz E350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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