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5.4

fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
17,333 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.

2015 Mercedes-Benz C300 miscellaneous problems

miscellaneous problem

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2015 Mercedes-Benz C300 Owner Comments (Page 2 of 2)

« Read the previous 20 complaints

problem #19

Jul 102020

C300

  • 20,340 miles

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

My panarama sunroof just fail and almost collapse on me. My car is 5 years old. I was driving and it appear the glass was coming out. The vehicle was stationary. I'm afraid that the glass will pop out and fall on me. This is serious. It could harm me if it falls on me.

- Fishkill, NY, USA

problem #18

Feb 132020

C300

  • 53,000 miles
I was driving on 02/13/2020, about to cross the Arkansas/Tennessee bridge when my sunroof exploded without an explanation. The entire panoramic sunroof shattered. It was the most frightening thing I have ever experience. If my sunroof screen had been open, all of the glass would have fallen on my head and in my eyes. Called the mb dealer for help, they weren't willing to help and suggested that I file it with my own insurance company. This is a defect of mb!!

- Memphis, TN, USA

problem #17

Jul 142018

C300

  • miles
Car looses speed while driving in the street or a highway. No code have been detected in the computer. I have been taking the car to the dealership but they haven't found what's the problem.

- Miami, FL, USA

problem #16

Sep 212018

C300

  • 38,000 miles

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

Speakers randomly stop working - sometimes for a few hours and other times for up to 5 days. When speakers are not working, this means the stereo, navigation, bluetooth calls, and emergency calls are inaccessible. This is a problem for many drivers please click on the link below. Https://mbworld.org/forums/C-class-W205/701679-stereo-issue-my-2015-C300.html

- Allen, TX, USA

problem #15

Mar 192018

C300

  • 40,000 miles
Entertainment unit does not work at all. Happened out of nowhere one day turned on the car and it was frozen. Back up camera 9/10 times does not work and when it does it turns on after you have backed up and are already going forward. Unit freezes unable to change or do anything to the unit itself. Occasionally a blue screen pops up for 1-2 seconds and goes to the initial start up screen for a while. I went to my local dealership and the admitted of hearing about this problem from other owners with the same issue and said there was nothing that could be done cause they have no idea how to fix it, I mean that's absurd.

- Miami Gardens, FL, USA

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problem #14

Mar 192018

C300

  • 60,000 miles
There is a serious problem with the vehicle mentioned above. The entertainment system and the rear camera do not work. This is a serious safety concern regarding the rear camera. The C-class is designed in such way that you depend on the camera when reversing and it is very difficult to see the rear view when backing and looking from all angles. I called your hq in Maryland for assistance, they were unaware of potential reported problems. Their best answer was to call the dealership. The following day, I received a phone call from new country motor cars Mercedes Benz of hartford, ct stating that they have not heard of this problem and its very unlikely that it was associated with the recent recall regarding this vehicle. Upon arrival, and retelling my story to the service advisor helder crespo, he told me that their received numerous complaints about this particular vehicle make and that other customers are affected by this similar problem. It been three weeks, I have not heard anything from mb or dealership. I am quiet appalled by this matter and shocked by the improper communication from mb to their loyal customers. Is this 'the best of nothing' customer relation?! I am extremely dissatisfied how this matter is being handled and that not even one single person who knew about this issue did not even apologize for the inconveniences that this had cased me.

- Masfield, CT, USA

problem #13

Mar 082018

C300

  • miles

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

My navigation and central control panel not functioning and freezing with message "please wait". caused so many safety problems, including backup camera not working, temperature control and airflow screen not showing up, bluetooth phone system not working to take hand-free calls, and no radio station is working and/or only one unknown radio station tuneup but can't switch to another station at all to listen highway traffic information. It's been already 3 weeks and I visited dealership and called Mercedes Benz customer services but no help/solution available so far. Asked me to just wait few more days.

- Elmhurst, NY, USA

problem #12

Mar 192018

C300

  • 20,020 miles
2015 Mercedes Benz C300 (W205) hacked satellites issue on mon Mar 19, 2018 affecting command/audio 20 system initial issue: *bluetooth audio would not connect subsequent issues: *radio selection freezes all operations for about 60-seconds, and does not provide access to radio *bluetooth disabled permanently in system settings devices will not connect and places command into persistent waiting state *backup camera did not display on at least two occasions concerns with current state, fri Mar 23, 2018: Safety *cannot use hands-free features of phone, endangers driving while holding a phone (which is illegal in many states/localities) *backup camera dysfunction could cause an accident while backing up (see attachment for more info.)

- Cranberry Township, PA, USA

problem #11

Mar 112018

C300

  • 46,500 miles
Dont know which category it falls. I bought this car in August 2015. In one week it would not start even. Towed to dealership and they said, the grounding screw was loose. I am so surprised that a car comes out from factory with a loose grounding issue. In the last 2 weeks, the car just stalled at the signal. All lights came up. I had the eco start/stop mode on. This happened 3 times and finally I shut the eco start/stop mode down. It is so dangerous that in heavy traffic, when people are ready to drive on change of signal, the car wont move, people are honking and frustrated and I am too. Looked online and so many people are complaining the same. The whole of dashboard lights up like when a car stalls. This is very dangerous. Anybody waiting behind you can take the pedal from the brake and smash into you. Similarly, for last 2 months, I have noticed that there is a jumping nature when you take leg of the brake at the signal. That scares me as well. From the feel of it, I feel this is primarily a software issue where the computer thinks it is in some mode when it is not or something and shuts everything down as a precautionary measure or something

- Kendall Park, NJ, USA

problem #10

Mar 092018

C300

  • 13,400 miles
Collision assist inoperative dash light came on while highway driving followed by a loss of power and acceleration. Vehicle needed to be turned off and restarted to be drivable.

- Edmonds, WA, USA

problem #9

Oct 312017

C300

  • miles

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

Windows rattling, they said this problem is known, I took my car 4 times to get it fix but no lick. This is very bad when you are driving.

- Orlando, FL, USA

problem #8

Mar 012017

C300

  • miles
NHTSA recall #17V114 starting current limiter our mbenz C300-2015 model has been recalled and needs to be repaired. Its more than 60 days since the issue is known but the repairs are still not available. This thing can be dangerous to our life and needs to be fixed asap

- Newark, CA, USA

problem #7

Feb 252017

C300

  • 21,000 miles
I was driving 580-E and merging onto I-5 S when I hit a humongous pot hole with my left font tire causing it to immediately blow out. That in-turn caused my stability tracking to engage, which caused me to slow down drastically. That caused another vehicle to near miss ramming me in the back and me side swiping another vehicle. I was driving approximately 70 mph and almost lost control of the vehicle and had to immediately pull over to a very narrow shoulder of the road with my emergency flashers blinking. To ensure the safety of the vehicle, my self and other passengers in the car, I had to drive approximately 0.5 miles to the next exit (67) to safely get my vehicle off the road to a safe location. I then called a tow truck to tow my vehicle back to santa rosa where I live to get the tire replaced and front bump repaired. I am unsure of the cause of the unsafe condition of the highway or what caused the pot hole. There were several cars stranded with damages to their vehicles as well. One person came to the same exit (food mart on patterson road) with a blown out tire as well. I have her contact information if you need to contact her.

- Santa Rosa, CA, USA

problem #6

Oct 012016

C300

  • 23,500 miles
I heard a very big devastating noise while driving my 2015 Mercedes Benz-C300 on a local road in raleigh, nc at about 40 mph. Since I did not see any TPMS (tire pressure monitoring system) or any other kind of alert on the screen, I continued to drive. After driving about 2 more miles, I heard another big pop and the car became non-drivable by then. I did not feel hitting any object or going thru a pot hole. That's when I got down the car and noticed the right front tire outer wall got separated from the tire and the the tire was just flat to the ground. I could not, of course, drive further. This happened on Saturday (10/1/16) evening and it is a run-flat tire, but could not drive further and there was no spare in the car. So, I had to wait until today (10/3/16) to get it towed to the nearest Benz dealer in raleigh to get the tire replaced. It was a very frustrating half a day attending to this repair. There are a couple of issues here. (a) quality issue: Why the Continental tire tire gave away so quickly with only about 23.5K miles on the odometer, without hitting any object? (B) safety issue: This would have been a disaster if I were on a road trip with family on a national highway, especially, on a Saturday evening without a spare tire. (C). System response issue: Why mb system did not give any kind of alert in spite this major blow-out? I would hesitate to buy another car without a spare tire. I hope the NHTSA will consider seriously discouraging run-flat tires in the cars unless a spare tire is provided, until such time the run-flats are extremely safe and sturdy. Thanks.

- Raleigh, NJ, USA

problem #5

Jun 112016

C300

  • 9,700 miles
Multiple incidents of 'collision prevention assist plus inoperative'. car loses all power until restarted. This happened several times, once on an interstate at 65 mph creating a dangerous situation. I had to pull over several lanes on the interstate with no power while other cars had to avoid me. I brought the car into the dealer and after a week of repairs, the same fault has occurred twice in the first 24 hours after return of vehicle. Fault occurred at 60 mph during a passing maneuver on a 2 lane road. Again, we were put in a very dangerous situation. This is an unsafe vehicle. Attached is a picture of the dashboard fault that I photographed after the car coasted to the side of the road. The car would not move until I turned it off and restarted.

- Boulder, CO, USA

problem #4

Apr 072016

C300

  • 10,500 miles
While driving "collision prevention assist plus inoperative" message appears on dashboard. Car loses its ability to accelerate. Occurred twice (January 2015) on city streets forcing me to pull over to the side of the road and restart my car, the error disappears and I am able to drive normally. 4/7/16 occurred while traveling 65mph on an interstate. I lost ability to accelerate and was almost rear-ended by a semi-truck. The vehicle was serviced at a Mercedes dealership on 1/11/16 the highway incident occurred after the "fix". it is currently back at the dealership being tested by the service department. I am told the current fix is to replace all the senors. I have opened a case with mbusa to repurchase the vehicle given the initial repair did not work and put me in perilous highway situation. I purchased the vehicle in October of 2015.

- Canonsburg, PA, USA

problem #3

Jan 202016

C300

  • 8,500 miles
Two issues, purchased a certified pre owned vehicle. At 8900 miles, we noticed the car was idling very rough on a cold start, almost the sound of a diesel. The sound would resolve after 10 minutes of driving. Service informed us that there was a recall on the rods and pistons. We had the engine rebuilt, and the noise is the same, if not worse. The car sounds nothing like laterbuild '15 models or '16 models, nor does it run as smoothly. Secondly, 5 occurrences involved inoperative collision prevention assist warnings and inoperative anti-skid warnings appearing on the dash causing the car to reduce operating speed to 20mph max. Car needed to be shut off and restarted after a 5 minute period each time these warnings appeared, in order to drive over 20mph. The vehicle was serviced for these warnings twice. The first service diagnosed the car with a coding issue. The second, involved replacing modules. This all occurred during the two months of owning the car. We notices several similar complaints regarding the early build 2015 C300S, and decided to cut our losses and purchase another vehicle. We did not feel safe in that car.

- Watertown, CT, USA

problem #2

Jan 162016

C300

  • 5,000 miles
Collision prevention assistance feature went on automatically ( as well as check-engine light) while driving at highway speed in normal weather. I was not in an accident, near another vehicle and completely aware and driving normally prior to this occurring. I had to struggle with car to pull over to shoulder, loss power from gas pedal, car hard to control. I had to turn off the car, deactivate the function to drive. It happened again when I drove the car later that day after the car had been parked for a while. Took it into service. They were able to find the error code.they found that Mercedes sent out a memo in Sept. 2015 stating they are aware of the problem but service is not to do anything to "fix" it! I have only owned this car for 6 weeks, bought it new and have less than 6,000 miles on it. Mercedes is not offering a solution but more of a wait and see attitude.

- Owings Mills, MD, USA

problem #1

Mar 062015

C300

  • 1,500 miles
I had two issues within 2 months of buying the car earlier in this. I purchased the car in early Feb 2015. I heard a loud sound in the heating unit, then a small clicking sound ensued for over a week. Brought it in, the motor had blown, so they replaced it without a dime out of my pocket. Then in March, I was driving about 35 miles per hour when a very loud noise like bad breaks started and wouldn't stop no matter what I did. We towed it using Mercedes, but had to pay for an uber to the dealership. It was again another malfunction with the new model, and they fixed the breaks and rotors that same day without a dime out of my pocket. I now have 6500 miles on it since I got it in Feb this year, and the check engine light came on. I tried to replace the fuel cap but that didn't make it go away and the car is driving fine. Im bringing it in later this week. I saw reports that there are some cars with this fuel issue thats causing this indicator. Overall this one particular car I leased is a total dud, but I hope these reports help others with similar issues.

- Springfield, NJ, USA

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