RoadVitals

2014 Mercedes-Benz C 300 Electrical Problems

Owner-reported complaints naming the electrical system, filed with NHTSA

Data refreshed

Electrical reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
9
Latest Feb 23, 2026
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
10%
of 94 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories. Every record below is an owner-reported complaint about the 2014 Mercedes-Benz C 300 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 9 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming electrical

Shown in the owner’s own words, exactly as filed

ElectricalSteering
Filed Feb 23, 2026

Experiencing a failed Electronic Steering Lock (ESL). Car won’t crank or start even after verifying battery health and key fob. Symptoms point to a failed ESL, left stranded

NHTSA ID
11719778
Incident
Feb 22, 2026
ElectricalSteering
Filed Nov 6, 2024

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. The failure mileage was approximately 158,000.

NHTSA ID
11623763
Incident
Oct 10, 2024
Mileage
158,000 mi
AirbagsElectricalSteering
Filed Jul 2, 2024

While I was driving my car the driver side airbag abruptly deployed. The airbag inadvertently deployed; the car did not crash into anything to cause the airbag to deploy. When the airbag erupted it caused injury to my head, face, hand, arm and wrist. I believe the airbag is defective because I have lacerations on my face possibly due to sharp objects ejecting from the airbag and the impact as well as excessive smoke and fumes emitted after the fact. I believe there might be a manufacturing defect in the airbag because it seemed as if it exploded with excessive force causing harm to myself as well as inadvertent eruption. There have been some recalls issued on the motor vehicle and I did take the vehicle to the Mercedes car dealership to get all of the recalls repaired, however this incident occurred after the repairs were made at the dealership.

NHTSA ID
11598400
Incident
Jun 26, 2024
Electrical
Filed Dec 18, 2023

The ignition switch is causing the steering column to lock and it has been reported a lot at different dealerships that I have called.

NHTSA ID
11560740
Incident
Nov 27, 2023
ElectricalEngineSteering
Filed May 30, 2022

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 ID
11466656
Incident
May 30, 2022
ElectricalSteering
Filed Jan 5, 2021

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. I HAD THE RECALL CHECKED ON MY VEHICLE AND THOUGHT IT WAS FIXED. HOWEVER, TWICE IN NOVEMBER 2020 MY CAR WAS STATIONARY WHEN TRYING TO START THE CAR, THE STEERING WAS LOCKED AND THE IGNITION WOULD NOT START. THEN AFTER MAKING SEVERAL ATTEMPTS CAR EVENTUALLY STARTED. I CALLED MERCEDES AND I WAS TOLD OVER THE PHONE BY MERCEDES IT COULD BE MY KEY FAUB. HOWEVER, THIS HAPPENED A 4TH TIME ON DEC 24, 2020, NUMEROUS ATTEMPTS TO START CAR AND CAR WOULD NOT START, STEERING WAS LOCKED. CAR HAD TO BE TOWED TO DEALERSHIP. WAS TOLD BY MERCEDES THERES A FAULT IN THE STEERING LOCK MODULAR. THE ELECTRICAL WIRING IS FAULTY AND THE ENTIRE STEERING MODULAR HAS TO BE REPLACED. THIS IS A MAJOR SAFETY ISSUE, AND CAN CAUSE ACCIDENTS WHEN IT MALFUNCTIONS WHILE DRIVING. I ASKED ABOUT THE RECALL THAT WAS ON THE STEERING AND WAS TOLD THE RECALL ADDRESSED A DIFFERENT ISSUE WITH THE STEERING.

NHTSA ID
11386738
Incident
Dec 24, 2020
Mileage
65,000 mi
ElectricalSteering
Filed Dec 7, 2019

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 ID
11287670
Incident
Nov 12, 2019
Mileage
47,582 mi
AirbagsBrakesElectrical+2 more
Filed Mar 20, 2019

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V10000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF GOLDEN BRIDGE (321 NY-22, GOLDEN BRIDGE, NY 10526, (914) 232-8122) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE VEHICLE ALSO HAD ELECTRICAL FAILURES AND ONE OF THE RIMS FRACTURED. ALSO, THE POWER STEERING AND BRAKES WERE FAULTY. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. *BF. CONSUMER STATED 2-3 TIRE AND RIM REPLACEMENTS FIRST 4 MONTH OF PURCHASING IT. CONSUMER PURCHASED A SECOND CAR. AGAIN SECOND HAD HAD CREAKED RIM ON THE WHEEL, WHICH CONSUMER REPLACED. CONSUMER HAD CRACKED WHEEL, LANE ASSIST HAD ELECTRICAL FAULT, REPLACED ACCELERATOR PEDAL, REPLACED HORN PLATE, STEERING WHEEL AGAIN VIBRATION MOTOT MALFUNCTION, REMOVE BATTERY, REPLACED 12/18. CONSUMER HAS RECEIVED 4 SAFETY RECALL LETTERS ON THIS CAR AND OUT OF 4 LETTERSM, 2 CAME IN 2/19, 3/19. CAR'S WARRANTY IS UNTIL 4/2019.*JB

NHTSA ID
11190343
Incident
Mar 6, 2018
Electrical
Filed Nov 24, 2014

TL* 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 ID
10660706
Incident
Nov 12, 2014
Mileage
6,000 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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Elsewhere on this vehicle

Data sources

Data on this page last refreshed .