2014 Mercedes-Benz C300 Electrical system Problems
- Complaints
- 9about this part
- Share
- 10%of 94 total for the year
- Median mileage
- 56,291miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the electrical system of the 2014 Mercedes-Benz C300, 10% of the 94 complaints for this model year. Where a mileage was given, the median is 56,291 miles. 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.
“While driving on 95 highway taking an exit ( making a right turn roundabout) the steering wheel locked on me preventing me from continuing in the direction of the exit causing me to almost crash into the metal railings; because my wheels now where locked in a position that would force me to crash into the railings had I not stopped. I stopped and turn the car off and restart for the steering wheel and system to reset and unlock. This incident occurred around 2018 or 2019. I notified mercedes of what happened and I received notification of a recall on the steering. …”
NHTSA complaint #11386738, filed 2021-01, 65,000 miles“The car was stationary and when trying to start the steering was locked and ignition would not start. The car had the steering locked and electronic ignition switch spontaneously corrupted and required replacement.”
NHTSA complaint #11287670, filed 2019-12, 47,582 miles“The contact owns a 2014 Mercedes-Benz C300. The contact stated that an unidentified recall was previously completed on the vehicle; however, the recall remedy failed to prevent the failure from occurring. The contact stated that while driving at undisclosed speeds, the steering wheel locked. No warning light was illuminated. The vehicle was towed to a local dealer, where it was diagnosed and determined that the electronic steering lock and the TRP needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. …”
NHTSA complaint #11623763, filed 2024-11, 158,000 miles“The contact owns a 2014 mercedes benz C300. The contact stated that while driving at unknown speed, the vehicle decelerated after the check engine and traction light illuminated. The vehicle was taken to the dealer. The technician diagnosed that the electronic module needed to be repaired. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 6,000. The VIN was unavailable.”
NHTSA complaint #10660706, filed 2014-11, 6,000 miles“Parked the car, did something, came back and car did not start. Key in, no crank, no start, no steering. No lights on the dash, no gear shifting, can’t roll the windows up. All out of nowhere. Think it’s a problem with the Electronic Steering Lock.”
NHTSA complaint #11466656, filed 2022-05Related 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 C300 2008–2016, E350 2012–2016, ML350 2012–2014 +13 more
Related service bulletins
- 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…
- 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…
- 11006658Aug 10, 2024Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) C-Class, E-Class, S-Class, G-Class, CL, CLS, ML, GL, GLE…
- 11008064Aug 9, 2024In our continuing efforts to ensure the proper performance and quality of your vehicle, we are writing to inform you that on certain Model Year 2011-2018 C-Class, E-Class…
- 10207198Jan 27, 2022Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in the inside rearview mirror. Cause 1. The integrated garage door opener…
- 10207199Jan 9, 2022Complaint The range of the integrated garage door opener (GTO) is too short. Cause 1. Vehicles equipped with infrared windows and/or a heated windshield may suffer from…
- 10205790Aug 2, 2021After starting the engine, the instrument cluster shows the "EBD not available, diagnosis/test stand" message in yellow.
- 10187793Jan 7, 2021Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2013-2017 B-Class, C-Class, CLA-Class, CLS-Class, E-Class, G-Class…
- 10186141Dec 10, 2020NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 4 | 36% |
| 2023 | 5 | 23% |
| 2022 | 7 | 28% |
| 2021 | 1 | 7% |
| 2020 | 3 | 9% |
| 2019 | 13 | 19% |
| 2018 | 10 | 10% |
| 2017 | 31 | 14% |
| 2016 | 32 | 11% |
| 2015 | 50 | 13% |
| 2014 | 9 | 10% |
| 2013 | 19 | 7% |
| 2012 | 12 | 4% |
| 2011 | 43 | 9% |
| 2010 | 84 | 19% |
| 2009 | 198 | 34% |
| 2008 | 228 | 34% |
Other parts of the 2014 Mercedes-Benz C300
52 complaintsSteering
13 complaintsSuspension
11 complaintsBody and structure
9 complaintsOther or unknown
8 complaintsVehicle speed control
3 complaintsBrakes
2 complaintsEngine
2 complaintsSeats
2 complaintsWheels
2 complaintsFuel system
1 complaintsLatches, locks and linkages
1 complaints
← All problems reported for the 2014 Mercedes-Benz C300
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