2014 Mercedes-Benz E350 electrical system problems
38 owner complaints filed with NHTSA name the electrical system on the 2014 Mercedes-Benz E350 — 14% of all complaints for this model year.
What owners report
“Odometer Fraud. The contact purchased a 2014 Mercedes-Benz E350. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the mileage was 109,550. It was later discovered that the mileage on the Title was approximately 300,000.”
filed Sep 4, 2025
“I've had the car for 3 years and its all stock. It has 38,500 miles and today out of no where the driver side speaker in the door started making a crackling and popping noise. Smoke started coming from the speaker and filled the cabin. I quickly pulled over and turned off the car, because the smell…”
filed Jul 31, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Various control units on these vehicles may have been updated with incorrect software…Campaign 17V177000 · Mar 14, 2017
Related service bulletins
Complaint 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 instrument cluster. In addition, the following two…
LI82.85-P-080507 · Service Bulletin/Repair Instructions · issued May 26, 2026
Electrical System problems in other E350 years
| Year | Reports | Share |
|---|---|---|
| 2016 E350 | 9 | 18% |
| 2015 E350 | 5 | 16% |
| 2013 E350 | 12 | 7% |
| 2012 E350 | 18 | 8% |
| 2011 E350 | 4 | 2% |
| 2010 E350 | 17 | 9% |
| 2009 E350 | 3 | 5% |
| 2008 E350 | 18 | 10% |
| 2007 E350 | 17 | 5% |
| 2006 E350 | 18 | 5% |
Other reported problem areas on the 2014 Mercedes-Benz E350
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.