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5.4

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
16,940 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2014 Mercedes-Benz C300 electrical problems

electrical problem

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2014 Mercedes-Benz C300 Owner Comments

problem #7

Jun 262024

C300

  • miles

A D V E R T I S E M E N T S

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.

- Medway, MA, USA

problem #6

Nov 272023

C300

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

- Conyers , GA, USA

problem #5

May 302022

C300

  • 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.

- Maywood, NJ, USA

problem #4

Dec 242020

C300

  • 65,000 miles

A D V E R T I S E M E N T S

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.

- Stafford, VA, USA

problem #3

Nov 122019

C300

  • 47,582 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.

- Augusta, GA, USA

problem #2

Mar 062018

C300 6-cyl

  • miles
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.. 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.

- Golden Bridge, NY, USA

problem #1

Nov 122014

C300

  • 6,000 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.

- Castle Pines , CO, USA

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