2014 Mercedes-Benz E550 Electrical system Problems
- Complaints
- 2about this part
- Share
- 13%of 16 total for the year
- Median mileage
- 3,260miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2014 Mercedes-Benz E550, 13% of the 16 complaints for this model year. Where a mileage was given, the median is 3,260 miles. 1 a fire, according to the filers.
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.
“Started ignition, idle for about 3 mins warming up the engine. Preped to leave to current designation. Reverse, pulling out to the right I turn my steering wheel all the way to the right, car shuts off, all lights appear on the dash. Turn off and restarted. And continue to drive in reverse repeating the steering to the right... Car stalls again.... I finally make it home because I was not sure if the car was safe to drive. I parked, turned all the way to the right made a weird idle noise maybe 4x louder then standard but deeper. And boom stalls. …”
NHTSA complaint #10620788, filed 2014-08, 3,260 miles“I was driving in the Dallas area at highway speed (approx 70mph) during rush-hour traffic when a crackling sound presented in the dashboard area from what appeared to be the sound system (Harmon Kardon surround system). This was immediately followed by the unmistakable smell of burning plastic or something similar. Smoke coming from the center speaker in the dashboard followed subjecting car occupants to potentially hazardous smoke and chemicals resulting from the fire.All signs suggested an electrical fire which was alarming considering this occurred at highway speed. …”
NHTSA complaint #11458582, filed 2022-03Related service bulletins
- 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…
- 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…
- 11026835Dec 18, 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…
- 11022385Aug 28, 2025Complaint Message in Instrument Cluster for "Active Distance Assist not enabled, but can be purchased subsequently" even if Digital Extra: Active Distance Assist DISTRONIC (207)…
- 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…
- 11017119Apr 21, 2025Complaint 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…
- 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…
- 11014608Feb 24, 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…
- 11014576Feb 24, 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…
Electrical system: other model years
Other parts of the 2014 Mercedes-Benz E550
9 complaintsBrakes
3 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsElectronic stability control
1 complaintsEngine
1 complaintsSteering
1 complaintsBody and structure
1 complaints
← All problems reported for the 2014 Mercedes-Benz E550
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