general problems of the 2014 Mercedes Benz CLA250

My rear subframe rusted from the inside out and due to the rust my control arm broke off.

I was driving down the highway without any vehicles in front of me at around 65mph when all of a sudden my panoramic roof exploded out of nowhere, it sounded like a gunshot going off inside the car and I nearly crashed my vehicle from the sudden explosion, I luckily had the glass shade cover up and glass did not fall in my face, I had my [xxx] daughter and [xxx] son in the backseat and they are now terrified to get back into any vehicle. This is extremely dangerous situation and will cause a serious accident in the future if not fixed. Nothing hit my roof and I wasn’t even using it at the time no one touched the thing, it just exploded out of nowhere. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

As I was driving yesterday afternoon, I heard a noise and normally we don't hear any type of noise or air coming into the car. I decided to open the sunroof to see if there was something wrong with it like if it was stuck open or if something was stuck in it, and the whole sunroof almost flew off the car. I had to pull over as fast as I could into the break down lane and it took me a while to close it and it still seems to be open, I didn't see anything stuck in the guide rails or in the area when closing it. I was very scared for the safety of my children and myself and for the other drivers on the highway. I have made an appointment so the shop and check the car out and run some diagnostics. There are no warning lights or messages prior to the sunroof almost flying off the car.

As I was driving, the car is on d but it slips into n and I cannot shift to any other gear accept p. This happens randomly and happened three times. I noticed the gla250 also had this issue. I have to turn off my engine and restart my car to get it running again normally.

When accelerating, the car loses power. My teenager was almost hit by another car as she was trying to enter the highway via an off-ramp. It happens very often. This started occurring at 60k! when stopped with your foot on the brake or even in park, the car goes slams backward and cuts the engine back to a rev. This has been occurring since 37k. Additionally, there is a loud clunking noise when you turn the wheel. This has been occurring since 50k. Power seat on driver’s side loses all power and locks. This has been replaced/repaired three times! glove box locked and will not unlock even with key. All of these issues are frequently reported via complaint sites, yet no recalls on this very expensive car. . Read more...

The sunroof no longer works. Found pieces of plastic in the guide rails as the shoe horn pieces seems to be broken apart and had to force my sunroof to close and now it whistles as I am on the highway. I have seen hundreds of complains about this on the Mercedes Benz message boards.

My son was driving it on highway and noticed smoke and fire from rear driver side. Thankfully he was able to get car on shoulder and the whole car lit up in flame. Firefighters and police rescued them and there was no indication on what started this fire. Police has filed report as misc that it could be from car fuel line or such, there was no other problems with car and it has been services by mercedes dealer all along.

While driving the other day I opened the sunroof when it suddenly made a strange sound and stopped. When I tried to close it I noticed that the left side was raised but the right side was down. It made a whirring sound and moved a little but refused to close. When I got home and looked at it it looks like the windscreen has come loose and looks like it was pushed forward and broken by the linkage that makes the roof go up. It looks like the linkage is bending forward when I suspect it should bend backwards. This has been happening since I bought the car in 2016. Sometimes it opened and while driving I'm afraid it might blow out into the high way. Causing an accident.

When the car is in idle and in motion, the cabin of the vehicle fills with a smell of fuel, and it was also discovered that the car also has began leaking from the fuel tank located underneath the rear seats.

While traveling with my wife and newborn on highway 64 my 2014 cla mb cut off( while in motion ) and gave a code 'do not shift gears 'visit dealer. Somehow the car switch to netural while I coast the car to a safe edge of the road. We were terrified!! next it gave a transmission code in red to do not shift visit dealer. I'm not sure if any recalls but this is a safety that needs attention!!.

Takata recall the car won't start and this message appears.

Driving home from work yesterday on the highway and the panoramic sunroof spontaneously shattered, causing me to swerve and almost run off the side of a cliff. Upon doing research I've learned that this has been an issue with mercedes and there has already been many class action lawsuits filed.

Early afternoon while just driving off an exit in TN. My sunroof exploded causing shards of glass to fly into my car. I had minor cuts on my lower back and arm from the glass covering me while driving. I was able to safely pull over to assess what happen because my initial thought was that someone was shooting at me. The dealership is not claiming any responsibility for this defect . There were no other cars around so the damaged could not have been caused by a rock or falling object.

Pre safe functions limited light and inoperative traction control light comes on car immediately loses 50 percent power and will not accelarate. 15 times in a 1yr period. Dealer doesn't see a problem. . Today for the 5th time I was nearly hit by an oncoming vehicle. Two weeks ago problem occured while I was in a funeral procession going through an intersection the vehicle behind me had to swerve to avoid a rear end collision. . I do not feel safe driving a car I paid 50. 000 for. .

The vehicle will stop acceleration while driving. The message states "pre-safe functions limited". When the car shuts off for no apparent reason when driving at 70 mph on a highway is really unsafe. I have to coast to the side of the road to safety. I have turn the vehicle off and then I will be able to restart the engine. I have not taken this into my mercedes dealership yet.

Multiple episodes of "pre-safe functions limited" occurring. When this message appears the car suddenly loses acceleration and you are not able to go above 30 mph despite pressing on the gas pedal. This has occurred on normal 35-45 mph streets but has happened multiple times on the highway when the car is going 65 mph. Luckily, no motor vehicle accidents have occurred because of this issue. The car is able to accelerate and function normally after turning the engine off and on again. Have gone to mercedes dealer multiple times to fix issue. The first time it occurred, mercedes updated system software. Next they replaced vehicle sensors. Most recently they claimed the issue was due to oil pump failure. They replaced an oil control valve and oil pan. Four days after the repair I received the same "pre-safe functions limited message, my car stalled while I was going 40 mph. I have returned the car to the dealer once again to run diagnostics. This has occurred many times in the two and a half years that I've owned the vehicle. It is currently at 49,200 miles and has been properly serviced. Each time I bring the car in for this error message mercedes replaces a new part but it does not solve the problem.

I have had the same issue of the car, being in park for over 5-10 minutes, suddenly lunging forward. It is quiet startling to have it happen. I worry that when I exit the car with the engine running ( due to passengers still in the car) something will happen. This has happen several times with me.

Making noises like rattling or vibration during driving.

While driving on the highway, I heard a sudden loud explosion, the panorama sunroof shattered and glass rained down on me and everywhere within the car. There was no evidence of anything hitting the car or the sunroof, it just spontaneously exploded.

While driving my cla that I have only had 4 months the car turned off and said it's inoperable! I was almost hit multiple times, when dropped it of at dealer they wouldn't even give me a loan. I bought this car brand new!.

Inoperative - pre-safe functions limited - I've had this error come up 3x so far, it happened 2x just last night on a 10 minute drive. First time was on the freeway, had to pull over to the shoulder and restarted the car. The 2x other times happened last night, driving 10mins in the evening, both had to pull over and restart. The second time, my check engine light came up. I hope this is addressed quickly as I can see that the complaints are piling up on here.

Inoperable message flashed on the dash as I lost all acceleration power. Was almost rear ended by a semi, but was able to pull over to the side of the interstate. Luckily I was not in heavy traffic at the time and didn't get hit. This has happened 3 times now and I am still waiting for mb to get back to me.

Car had no acceleration while driving in traffic on a major parkway. Vehicle inoperable pre safety features disabled flashed on the message center. Engine light also came on. Vehicle taken to be serviced and the accelerator module replaced. My car seemed okay until it happened 4 more times again while driving on a parkway. This occurred approximately 5 weeks after the car was "fixed". Same exact problem and message. Is mb waiting for someone to get killed? so many people having the same problem. I don't need to get in an accident. I thought I was buying a safe dependable vehicle with exceptional service. I should have kept my sonata. I'm really afraid to drive this car again once I get it back.

Car has been lunging forward when in parked for more than 5 to 10 min since I have owned the car. This car was bought on February 20, 2015. Since then, I have brought it back to the dealership 3 times for the same problem. The third time that I brought it to them, they followed up with saying that it is the make of the car and every cla does that. This is a huge safety problem and it needs to be fixed.

Ummary: pre-safe function limited message and esp lights appeared on the dash and my car stopped in the middle of the highway. Almost got taken out by an 18 wheeler. I tried hard to move over to the shoulder. I turned off the car and turned it back on. It worked after that. Then it happened 40 minutes later. Very big safety issues with this car. This happened 5 times in 5 days.

Pre-safe function message and esp lights appeared and the car stopped allowing me to accelerate in the middle of traffic. I had to try to move over to the side of the rode. After moving to the side, I turned off the car and turned it back on. It worked after that.

Vehicle lost acceleration twice within a quarter mile distance on freeway after approximately 10 minutes of driving time. This is a second occurrence of same problem. Vehicle displayed pre-safe inoperative error message. After pulling over and restarting the engine, the issue was resolved for a short distance. The vehicle was towed to the dealership where the entire accelerator pedal assembly was replaced. My family is very skeptical of this cars reliability and is seeking options with attorney under state lemon laws.

Received the car new in November 2013 and immediately reported that the drivers side view mirror would not adjust to the left enough to adequately see vehicles in the left lane. The blind spot was the largest I have ever seen on any vehicle that I have driven. It would adjust to the right far enough to see the front seats inside the car but would not adjust enough to the left to adequately see the left lane next to the car. The view was of the side of my car and a little of the left lane. In the first two weeks of driving I almost had two accidents when changing lanes on a highway. I now have to completely turn my head and look out the back seat side window to see if there is another vehicle there before changing lanes. The dealership has worked with mercedes and changed the mirror and the mirror motor to try to correct this but it has not. They told me in June that mercedes was addressing the issue for the 2015 model and that I would get a new 2015 mirror when available. They installed the new 2015 mirror in December but it is exactly the same as the 2014 mirror. This is a big safety issue in that the view from the side view mirror is not much better then the rear view mirror. There are many complaints about this on the Mercedes Benz blog.