2014 Mercedes-Benz CLA 250 Problems

The contact owns a 2014 Mercedes-Benz CLA-Class. The contact stated that upon approaching the vehicle, she discovered that the driver's side window was shattered. The sunroof was brown, and there was a hole in the dashboard showing the engine. The contact stated that the vehicle had caught fire; however, the fire extinguished on its own. There were no prior warning lights illuminated. There were no reported injuries, air bag deployment, or police report filed. The fire department responded and was present at the scene, and disconnected several wires. The local dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was unknown.

I own a 2014 Mercedes-Benz CLA 250 with the 2.0L turbocharged 4-cylinder M270 engine. The check-engine light came on and an OBD-II scan showed fault code P052E / P052E71, which indicates that the valve for crankcase ventilation (PCV / crankcase ventilation valve integrated into the valve cover) has a malfunction and the actuator is blocked. The vehicle is available for inspection and, if the repair is performed, the failed part can be retained. This appears to be the same failure that has been documented by other owners and by Mercedes-Benz on the related M274 engine used in other models (same 2.0L turbo engine family and PCV / crankcase ventilation design, but in a longitudinal layout). For those vehicles, Mercedes has issued technical service bulletins and extended emissions-related warranty coverage for the crankcase ventilation / PCV system, but vehicles like my CLA with the M270 engine are excluded even though they show the same DTCs and failure. In my case, the problem has so far shown up as a check-engine light and stored fault codes, without obvious drivability symptoms yet. However, a blocked or failed crankcase ventilation valve can increase crankcase pressure, cause oil leaks, fuel vapor or oil smells, and potential turbocharger or drivability issues, which may create a safety risk if the problem worsens (loss of power or stalling). The problem has been reproduced multiple times with different OBD-II scan tools. I contacted Mercedes-Benz and was told there are no recalls or warranty coverage for this issue on my vehicle.

Apparently the TPS (Throttle Position Sensor) which is built into the gas pedal on this 2014 MB CLA250 only lasts so long before it becomes defective under highway conditions and causes the vehicle to go into LIMP MODE. When full acceleration is necessary, the unit will work for perhaps a few months or less, and then continue to fail worse and more frequently with each attempt at full acceleration. At highway speeds, this is an essential feature in a 4-cylinder vehicle such as this one and without the necessary acceleration capability, can expose the driver to serious risk of collision with other on-coming vehicles traveling at highway speeds. This "Limp Mode" features is extremely dangerous and hazardous to not only the driver of their vehicle, but to other drivers around them since they are left in a devastating position of being unable to accelerate normally and as necessary and as one would expect in any vehicle, let alone a Mercedes Benz. Never before have I driven a car that falls out of full acceleration mode only to subject the driver to serious collision circumstances. Whoever the imbecile is at MB engineering who incorporated this Limp Mode Feature should be fired!!! To make matters worse, this cheaply built TPS, which is the cause of the problem in my vehicle specifically, was only warrantied twice by the dealer and now they will not replace it under warranty which is a two-year period. I've only had the part 5 months before it failed again due to poor manufacturing and I had to pay all over again for a new one despite my warranty validity. There have been many other MB owners who have the same complaint for Limp Mode, which tells me that it's definitely not me, but rather the poorly built or engineered vehicle, as a matter of fact. MB has denied having these complaints to me, which of course, is a lie. That's misleading and deceptive business practices in my State and MB needs to live up to its warranty provisions and respect its customers.

WHEN ACCELERATING HARD TO OVERTAKE, THE ENGINE LURCHES, AND THE CAR FAILS TO ACCELERATE FURTHER AND SLOWS DOWN. THE ENGINE FAULT LIGHT THEN ILLUMINATES WHICH SWITCHED OFF BY ITSELF AFTER SWITCHING THE ENGINE OFF TWICE. IT SEEMS I AM NOT THE ONLY PERSON TO HAVE THIS PROBLEM AS YOU CAN SEE IN THE COMMENTS TO THIS VIDEO DESCRIBING THE PROBLEM AND CLAIMING THE PROBLEM IS A FAULTY HIGH PRESSURE FUEL PUMP: HTTPS://YOUTU.BE/-SBR28ZBOFS THIS SEEMINGLY COMMON ISSUE IS CLEARLY DANGEROUS AS DRIVERS LOSE THE POWER WHEN THEY ARE MOST DEPENDING ON IT AND IT SEEMS TO BE OCCURRING IN CARS THAT ARE NOT PARTICULARLY OLD.

The shifter randomly stops working so I could have the car in reverse and not be able to put it in drive and be stuck in traffic or vice versa. I can have the car and drive and not be able to put it in reverse. I'd be stuck in traffic very dangerous.

The contact owns a 2014 Mercedes-Benz CLA250. The contact stated while driving at approximately 70 MPH, the vehicle stalled. The contact stated that when the vehicle stalled, an audible chime sounded, and the air bag warning light illuminated, and a RED triangle symbol flashed on the instrument panel. The contact stated that the instrument cluster went blank, and the vehicle lost power steering assist. Additionally, the brake pedal was very difficult to depress. The contact was able to restart the vehicle after several attempts, and the vehicle returned to normal functionality. The contact stated that the failure reoccurred. The contact drove the vehicle to a dealer who diagnosed the vehicle and determined that the battery needed to be replaced. The vehicle was repaired. The contact stated that the failure reoccurred and the vehicle had not taken back to the dealer. The manufacturer was not informed of the failure. The failure mileage was 76,850.

Please let me preface this by saying that I am a certified aircraft mechanic and have a good working knowledge of cars. My vehicle had NO prior indications, symptoms or abnormalities! This was completely out of the blue. Absolutely no warning that this was going to happen. The transmission of my 2014 CLA 250 Base model, while operating at 65mph on the interstate, all on its own, went into neutral and now will not engage into Drive. Initially following this incident, as I dogged the other vehicles on the interstate and coasted to the emergency lane, there were the following warning lights: ABS, TRACTION CONTROL, PARKING BRAKE accompanied with the alerts….PRE-SAFE Functions Limited, ABS/TRACTION CONTROL Currently Unavailable See O.M., Parking Brake See O.M. I then took it to the MB dealership and after they attempted transmission adaptation (which was not successful) they showed me the following fault codes: 079200-RPM sensor 1 has a malfunction, 287C00-Adaptation was not completed successfully. The alerts now state….Service Required: Do Not Shift Gears, visit dealer. The dealer wanted to change the transmission. I refused. I have had zero noticeable issues with the transmission with 72,000 miles. I had the transmission fluid replaced at 65,000 miles. I baby the car. I shouldn’t need to explain the dangers of a vehicle, while driving, randomly shifting into neutral, and not being able to be shifted back into Drive. I attempted all possible means of shifting the automatic transmission into drive, including the use of manual gear selection, and none of them worked, even after shutting the vehicle off and restarting multiple times. This is an extremely DANGEROUS malfunction!!

While driving the transmission slips into neutral. Must come to a complete stop and turn off the car then turn it on again to shift into gear.

The contact owns a 2014 Mercedes-Benz CLA250. The contact stated that while driving at undisclosed speeds, the air bag warning light illuminated. The contact stated that there was an abnormal snapping sound coming from the vehicle. The vehicle was taken to a dealer where a code reader retrieved information that there was a fault with the SRS sensor. The contact was charged for a diagnostic test and provided an estimate for the repair. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 150,000.

The contact owns a 2014 Mercedes-Benz CLA-Class. The contact stated that upon approaching the vehicle, she discovered that the driver's side window was shattered. The sunroof was brown, and there was a hole in the dashboard showing the engine. The contact stated that the vehicle had caught fire; however, the fire extinguished on its own. There were no prior warning lights illuminated. There were no reported injuries, air bag deployment, or police report filed. The fire department responded and was present at the scene, and disconnected several wires. The local dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was unknown.

The contact owns a 2014 Mercedes-Benz CLA-Class. The contact stated that upon approaching the vehicle, she discovered that the driver's side window was shattered. The sunroof was brown, and there was a hole in the dashboard showing the engine. The contact stated that the vehicle had caught fire; however, the fire extinguished on its own. There were no prior warning lights illuminated. There were no reported injuries, air bag deployment, or police report filed. The fire department responded and was present at the scene, and disconnected several wires. The local dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was unknown.

The contact owns a 2014 Mercedes-Benz CLA250. The contact stated while driving 30 MPH, the contact briefly lost control of the vehicle, prompting the contact to pull over to the shoulder of the roadway. After a visual inspection, the contact observed excessive rust underneath the rear subframe. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to Extended Warranty–Rear Subframe Damage Code: 35441 47. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 100,000.

P052e common crankcase ventilator issue mercedez extended warranty for later models for this same consistent issue in all the cars excluding 2014 starting at 2015 vehicles making us pay over $2000 for a fix supposed to be free being that it's all mercedes even the year before Should be a recall along with the hundreds of thousands of people with same issue online same car.

Check engine code p052e - PCV valve replacement (Crankcase Ventilation valve) - common issue on car and known recall for other models

I was driving my 2014 Mercedes CLA 250 on [XXX] traveling away from Fairfax County and towards Prince William County on Christmas morning right before [XXX]. The front right passenger side wheel started shaking and then flew off. I brought the car to a stop on the left hand shoulder of the road on three wheels. My wheel hit the metal fence and then ricocheted back across to the left crossing both sides of traffic (four lanes), hitting a concrete wall and becoming airborne before landing in the stream below. It was sunny and there was no rain. Speed was 45 mph. Witnesses observed the incident and I have their contact information. A police report was filed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

GOOD DAY, I AM ATTACHING PHOTOS OF A FAILED RIM FROM MY 2014 CLA 250. THE CAR HAS JUST OVER 54,000 MILES ON IT AND THE FAILURE-CRACK HAS PROPAGATED TO WHERE THE TIRE WILL NO LONGER HOLD AIR AND CAR IS NOT SAFE TO DRIVE. THIS IS THE 2ND FAILED RIM, THE FIRST CRACKED IN A SIMILAR FASHION AT JUST OVER 44,000 MILES AND WAS REPLACED BY MY LOCAL MERCEDES DEALER AT NOT CHARGE. THEY WILL NOT REPLACE THE 2ND FAILED RIM. WHILE WE LIVE IN THE MID-WESTERN USA (CHICAGO AREA) WHERE THE ROADS ARE ROUGH AND THERE ARE POTHOLES, THERE IS NO EVIDENCE OF DAMAGE OR DEFORMATION IN THE AREA WHERE THIS CRACK FORMED. IT'S UNACCEPTABLE THAT MERCEDES-BENZ WILL NOT STAND BEHIND THEIR PRODUCT. I HAVE BEEN DRIVING IN THE CHICAGO AREA FOR 40 YEARS AND HAVE NEVER, NEVER HAD A CRACK IN A RIM LIKE THIS. I BELIEVE THIS IS A DESIGN DEFECT THAT MERCEDES-BENZ NEEDS TO CORRECT AND REPLACE FAULTY RIMS ON OWNERS CARS. PLEASE FEEL FREE TO CONTACT ME FOR ANY ADDITIONAL DETAILS YOU NEED. I WILL BE SENDING THIS SAME MESSAGE TO THE NHTSA. THANK YOU, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *CC *TR

The contact owns a 2014 Mercedes-Benz CLA250. The contact stated that while driving at an undisclosed speed, the contact became aware that the sunroof was inoperable. The contact stated that the glass panel had detached, and the contact became aware of a crack on the glass panel. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 89,000.

I WAS DRIVING MY CAR ON LOCAL STREETS, SUDDENLY I HEARD A CRACKING NOISE FROM THE SUNROOF. AFTER THAT I PULLED MY CAR ASIDE AND NOTICE THAT THERE WAS A SMALL CRACK ON THE SUNROOF. (SEE ATTACHED PHOTOS) THERE WAS NO FALLING FOREIGN OBJECTS, NO IMPACT FROM THE WEATHER. I HAVE NO CLUE WHAT IS THE CAUSE OF THE DAY CRACK. MY FIRST REACTION WAS TO CALL THE INSURANCE COMPANY AND FIND A PARKING LOT TO STORE THE CAR. AFTER I CONTACTED THE INSURANCE COMPANY AND I WAS ON MY WAY TO THE PARKING LOT, THE SUNROOF SHATTERED COMPLETELY. SOME OF THE GLASS PIECE EVEN FELL AND CAUSED INJURY TO MY WIFE. THIS WAS DEFINITELY A MANUFACTURE DEFECT BECAUSE THERE WAS NO IMPACT FROM THE OUTSIDE AT THAT TIME AND YOU CAN ALSO CLEARLY TELL FROM THE PICTURE OF THE CRACK. IT IS NOT CAUSED BY ANY FALLEN FOREIGN OBJECT. I WAS NOT ABLE TO DRIVE THE CAR ANYMORE AT THE RISK OF MY FAMILY'S INJURY SO I CALLED THE MB ROADSIDE ASSISTANCE TO HAVE THE CAR TOLLED. THE SHATTERED SUNROOF NOT ONLY CAUSE DIVERSION OF THE DRIVER'S ATTENTION AND ALSO CAUSE BODY INJURY FROM THE FALLEN GLASS PIECES. MERCEDES IS NOT RESPONDING TO THE COMPLAIN. DEALER IS TAKING THE RESPONSIBILITY ON THIS ISSUE AND CHARGE ME $2,400 TO REPAIR THE SUNROOF. I DID A SEARCH ON INTERNET AND I NOTICED THAT SIMILAR CASES ARE WIDELY SEEN WORLDWIDE, SEE BELOW LINKS TO RECENT INCIDENTS IN CALIFORNIA AND UK. HTTPS://TWITTER.COM/RED_DEVIL718/STATUS/979365018843172865 HTTPS://WWW.CARCOMPLAINTS.COM/NEWS/2018/MERCEDES-BENZ-SUNROOF-SHATTERED.SHTML (CALIFORNIA CLASS ACTION LAWSUIT ON GLA) HTTPS://TWITTER.COM/SRINIVAS_KAMATH/STATUS/814467425190100992 ONE OF THE RECENT CASE EVEN CAUSED INJURY TO A DRIVER WHO IS A PILOT. HE BOUGHT THE CASE TO THE COURT IN CALIFORNIA. I REALLY THINK MERCEDES SHOULD BE RESPONSIBLE FOR THIS ISSUE AND EVALUATE THE RISK, CONSIDER A RECALL SINCE THIS IS NOT AN UNCOMMON CASE.

Was driving on a road with 3 lanes .I was in the right lane was switching to middle when my stering and brakes just locked up I was not able to control the car I ended up all the way in the left lane crashed into a car and ended up on the divider

WHILE DRIVING 30 MPH I RECEIVED A RED PARKING BRAKE ERROR AND MY CAR BEGAN TO BE VERY DIFFICULT TO STEER. I THEN PULLED OVER AND RECEIVED A YELLOW PRE-SAFE MODE ERROR WHICH ILLUMINATED THE CHECK ENGINE LIGHT, ABS LIGHT, PARKING LIGHT. I TOOK IT TOOK THE DEALER AND WAS TOLD IT WAS A RIGHT TIRE SENSOR. THIS APPEARS TO BE AN ONGOING PROBLEM WITH THESE CARS AND IT'S DEFINITELY NOT SAFE. THIS DEFINITELY NEEDS TO BE RECALLED.

I just got the vehicle it’s losing power already, I was driving up a hill as a school bus was behind me, and my car started losing power and rolling back. I have a transmission issue they sold it this way also electrical.

Was driving on a road with 3 lanes .I was in the right lane was switching to middle when my stering and brakes just locked up I was not able to control the car I ended up all the way in the left lane crashed into a car and ended up on the divider

WHEN I BOUGHT MY 2ND CLA, I HAVE NOTICED WHENEVER I AM DRIVING & TURN ON THE DRIVER'S HEATED SEAT, THAT IT ALWAYS BURN MY LEFT LEG, SO I WOULD ALWAYS TURN IT OFF. THIS HAS BEEN ONGOING FOR QUITE SOME TIME. FAST FORWARD TO LAST NIGHT (2/20/21), I TURNED ON MY HEATED SEATS & I SMELLED SOMETHING BURNING THEN IT FELT LIKE MY LEG WAS ON FIRE. THIS TIME THE PAIN FROM THE BURNING WAS WORSE THAN THE OTHER TIMES. I IMMEDIATELY TURNED THE HEATED SEAT OFF. I COULD NOT TELL IF THE SEAT WAS GIVING OFF SMOKE BECAUSE IT WAS DARK. I NOTICED THE NEXT DAY THAT THERE WERE A HOLE IN THAT AREA ON MY DRIVERS SEAT WHERE THE PROBLEM OCCURRED. AFTER SEEING THE HOLE IN MY SEAT, I THANK GOD I TURNED THE HEATED SEAT OFF BECAUSE HAD I MOVED MY LEG FROM THAT BURNING AREA ON MY SEAT, IGNORED IT & KEPT DRIVING, I BELIEVE THE SEAT WOULD HAVE CREATED A FIRE! THIS MOST DEFINITELY SCREAMS A FIRE HAZARD, UNSAFE & SHOULD BE DEEMED AS A RECALL ON ALL MERCEDES.

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.

MY SON HAD TO BE CUT OUT OF THE SEAT BACK BECAUSE IT WAS TOO TIGHT AND WRAPPED AROUND HIM. THE SEATBELT STRAP WAS LOCKED AND WOULD NOT EXTEND OUT AT ALL TO LOOSEN FOR EXTRA LENGTH ON THE STRAP. THE SEATBELT STRAP WAS SO TIGHT MY SONS STOMACH WAS WAS CINCHED TO THE POINT WHERE HE COULDN'T BREATH. I'M NOT SURE WHY THE SUSPENSION ON THE STRAP WAS LOCKED EVERY OTHER SEATBELT HAD EXTENDED STRAP. THIS WAS A SCARY EXPERIENCE AND COULD HAVE SEVERELY HURT MY SON. THIS IS UNACCEPTABLE FOR THE PRICE I PAID FOR THIS VEHICLE AND NOT TO MENTION MY CHILD'S SAFETY. I DIDN'T TAKE ANY PICTURES OF THE STRAP AROUND MY SONS STOMACH BECAUSE HE WAS IN PAIN AND WAS FRANTICALLY TRYING TO GET IT LOOSE AND CUT. I HAVE PICTURES OF WHERE I HAD TO CUT THE SEATBELT. I ALSO HAVE A DEFECT WITH MY ELECTRICAL WHICH I CAUSING MY BATTERY TO DIE. THE CAR WILL STAY ON COMPLETELY WITHOUT THE KEY IN THE IGNITION OR STARTED. I HAVE VIDEO OF THAT AS WELL. THIS IS COMPLETELY RIDICULOUS FOR A LUXURY VEHICLE. MY MAIN CONCERN IS THE SAFETY OF MY PASSENGERS ANDY SON SIMPLY UNBUCKLING A SEATBELT AND GETTING STRAPPED IN BECAUSE THE SUSPENSION OF THE STRAP WOULD NOT LOOSEN AND WAS LOCKED IS UNACCEPTABLE. I TRIED EVERYTHING TO PUTTING THE CAR IN DRIVE PRESSING THE BRAKE TO SEE IT THE STRAP WOULD UNLOCK AND NOTHING WORKED. MY SON WAS IN PAIN BECAUSE OF THIS DEFECT O HAD TO CUT THE SEAT BELT STRAP OFF FRANTICALLY. THIS IS NOT OKAY!

I AM WRITING TO RAISE SERIOUS CONCERNS ABOUT THE RUN-FLAT TIRES INSTALLED ON MY 2014 CLA 250. AFTER 12,830 MILES, I EXPERIENCED MY FIRST FLAT TIRE. AFTER CONSULTING THE OWNER'S MANUAL, I LEARNED THAT I HAD RUN-FLAT (MOEXTENDED) TIRES AND COULD PROCEED (HAVING THE ABILITY TO DRIVE 50 MILES ON THE FLAT, ACCORDING TO MY MANUAL). I WAS SHOCKED TO LEARN THAT THIS TIRE, COULD NOT BE REPAIRED AND THAT MY ONLY OPTION WAS TO PURCHASE A NEW TIRE. ON 8/29/16, I WAS TRAVELING SOUTH ON HIGHWAY 101 IN A VERY RURAL PART OF HUMBOLDT COUNTY IN NORTHERN CALIFORNIA, AND EXPERIENCED ANOTHER FLAT TIRE (AGAIN WITH ONE OF THE FACTORY INSTALLED TIRES). FROM A DESERTED GAS STATION IN A PLACE CALLED WEOTT, I TRIED TO CALL MERCEDES-BENZ ROADSIDE ASSISTANCE BUT AFTER BEING PUT ON HOLD AND TRYING TO NAVIGATE THE MENU, I GAVE UP. I KNEW THAT THERE WERE ONLY SMALL TOWNS FOR APPROXIMATELY 75 MILES SOUTH OF ME, SO I CHOSE TO RETURN TO FORTUNA (WHERE MY SISTER LIVED), APPROXIMATELY 20 MILES TO THE NORTH). THE MILEAGE AT THE TIME OF THIS FLAT WAS 22, 684. JUST A FEW MILES AWAY FROM MY DESTINATION, I PULLED OVER BECAUSE THE VIBRATION IN THE CAR HAD TURNED TO SHAKING AND I WAS FINDING IT VERY DIFFICULT TO CONTROL MY VEHICLE. I BECAME FRIGHTENED THAT I MIGHT LOSE CONTROL. I MUST REITERATE THAT AT THIS POINT I WAS EXTREMELY FRIGHTENED FOR MY SAFETY AND PULLED OVER ON THE SIDE OF HIGHWAY 101 AND CALLED FOR A TOW TRUCK. I HAD DRIVEN CAUTIOUSLY FOR ONLY 25 MILES ON THE FLAT TIRE, NOTHING NEAR THE 50 MILES PROMISED IN MY AUTO MANUAL. AT THE TIRE CENTER, I OPTED TO PURCHASE TWO NON RUN FLAT TIRES. 1) IS THERE A QUALITY ISSUE THAT NEEDS TO BE INVESTIGATED REGARDING THE FACTORY INSTALLED MOEXTENDED TIRES? 2) CLEARLY THE MOEXTENDED TIRES ARE NOT DESIGNED TO BE RUN WHEN FLAT FOR 50 MILES, AND THAT NEEDS TO BE CHANGED IN THE AUTO MANUAL. *TR