Mercedes-Benz CLA-Class Complaints

490 consumer complaints on file.

#11738289May 16, 2026
STRUCTURE:BODY
Water coming into the car through the floor
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11735001April 30, 2026
VISIBILITY/WIPER, UNKNOWN OR OTHER, STRUCTURE:BODY
Factory window tint of the back window & the driver/passenger side(s) windows are bubbling and peeling causing visual impairment while operating motor vehicle. Examples of impairment are backing the vehicle and changing lanes & these affected areas are blurry. Panaramic Sunroof does not seal properly when closed. Factory vehicle paint bubbling and peeling causing depreciation of the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11734113April 27, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER, ENGINE
This vehicle has suffered from persistent, substantial, and uncorrected defects, including but not limited to failures in the 48V mild-hybrid electrical system, lithium-ion battery system, DC/DC converter and coolant system. These defects have substantially impaired the vehicle’s use, value and safety as well as my safety, and remain unresolved despite multiple repair attempts at two separate authorized Mercedes-Benz dealerships in St. Louis, MO. SUMMARY OF DEFECTS •Multiple 48 V battery failures and replacements •Multiple replacements of DC/DC converters and failures •Multiple Coolant System failures •Sudden vehicle shutdowns while driving •Numerous non-start issues •Numerous red warning alerts related to the 48 V system •Multiple towing incidents (One involving the police) Despite extensive repair attempts, including replacement of major components, this vehicle continues to fail and is currently still at Mercedes-Benz of St. Louis unrepaired. These repeated repair failures demonstrate the vehicle cannot be repaired to conform with warranty standards. SAFETY INCIDENT My most recent safety incident: On March 10, 2026, this vehicle shut down in the middle of a busy multi-lane roadway, requiring police assistance and emergency towing due to the safety hazard presented. The vehicle has remained in possession of Mercedes-Benz St. Louis since that date (over 45 days) and remains inoperable and unrepaired. This vehicle had also been towed to Plaza Motors two additional times for the same reasons and was there for many days adding to this amount (See attachments). MULTIPLE DEALERSHIPS/FAILED REPAIRS The vehicle has been serviced by both: *Plaza Motor Compay, St. Louis *Mercedes-Benz of St. Louis Despite independent repair attempts by both authorized dealerships, the same defects persist. This confirms that the issue is inherent to the vehicle itself, not a service related issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11730462April 10, 2026
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
The back-up camara is stuck open on the trunk for more than 30 days now. When I put it in reverse the camara will show for about 5 seconds and then go back to the home screen. I brought this to the attention of my advisor and he said that its a known issue. If Mercedes knows this is an issue with the CLA250, they should offer a replacement instead of charging to fix a faulty component.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728141March 30, 2026
VISIBILITY/WIPER
While driving, the panoramic sunroof on my 2020 Mercedes-Benz CLA250 4MATIC shattered unexpectedly while fully closed. The interior sunshade was also closed at the time. There was no prior damage and no discernible impact. I did not observe or hear anything strike the vehicle. The fracture pattern shows no identifiable point of origin or impact and appears irregular and multi-directional, which is inconsistent with external debris. This appears to be a spontaneous tempered glass failure and raises safety concerns due to the risk of injury to occupants and driver distraction while operating the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11726006March 21, 2026
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723718March 11, 2026
FUEL/PROPULSION SYSTEM
To Whom It May Concern, I am writing to file a formal safety complaint regarding my 2019 Mercedes-Benz CLA250 involving a leaking fuel rail that caused the vehicle to shut down and become unsafe to operate. The failure of the fuel rail resulted in a fuel leak and engine shutdown. A failure within the fuel delivery system presents a serious safety concern, as it can cause sudden loss of power while driving and poses a potential fire hazard if fuel comes into contact with hot engine components. During the repair process, I was informed that the necessary replacement component, Fuel Rail Part Number 2700701995, is no longer being produced by Mercedes-Benz. Because this critical component is unavailable, the vehicle cannot currently be repaired and is therefore undrivable. It is deeply concerning that a safety-related fuel system component for a 2019 vehicle is no longer available. Without access to this essential part, the vehicle is effectively disabled. Additionally, based on the nature of this failure, I believe this fuel rail defect should be included in the recall list for this vehicle. A leaking fuel rail capable of shutting down the engine represents a significant safety risk that may affect other vehicles of the same model. I have attempted to contact Mercedes-Benz Customer Care at [XXX] on seven separate occasions and have left messages requesting assistance, but I have not received a return call. Because this issue involves both a serious fuel system failure and the inability to obtain a critical replacement part, I respectfully request that the National Highway Traffic Safety Administration investigate whether this defect affects other 2019 Mercedes-Benz CLA250 vehicles and determine whether a recall is warranted. Vehicle Information: Year: 2019 Make: Mercedes-Benz Model: CLA250 VIN: [XXX] Part in Question: Fuel Rail – Part No. 2700701995 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723215March 10, 2026
ENGINE, AIR BAGS:SIDE/WINDOW, STRUCTURE
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.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11722825March 8, 2026
ENGINE
Corrosion of the fuel system (on a Flex Fuel rated vehicle that had used E85 blend regularly) causing sudden loss of power, misfires, lack of acceleration The vehicle experience sudden loss of power, multiple misfires, and potential damage to the engine. Had the vehicle been on the highway or attempting to merge with traffic this could have resulted in an accident See attached dealer diagnosis and replacement of multiple fuel injectors, fuel pump, and fuel rail. The dealer service manager stated (but did not document) that this was probably caused by using E85, despite the fact that the vehicle is rated for E85/flex fuel There were no warnings or indications prior to the incident
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720510February 25, 2026
VISIBILITY/WIPER
Front Windshield Wipers run randonly when they are not turned on manually. I would be driving and for no reason (no rain or water on the windshield) the wipers would come on and would not turn off when I used the switch. There was no warning message on my auto dash. It was startling and caused confusion when they came on unexpectantly. My mechanic shared a XENTRY document regarding this problem on 4/25/23. Copies of the XENTRY report and my repair receipt are attached.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719214February 19, 2026
UNKNOWN OR OTHER
The sunroof is off the track. There seems to have been a recall for my make and model and year of vehicle (2019 Mercedes CLA 250) though Mercedes tells me that my vin # is not among those that were recalled. However, they told me that if I could reach out to NHTSA, that it would be possible that my vehicle would be added to the recall, which would force Mercedes to have to repair the issue at their cost, so this is me doing that.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11718332February 16, 2026
ENGINE
JUST PAID $4,154.67 TO HAVE MY 2019 MERCEDES CLA 250, WITH JUST 46,222 MILES, ENGINE REPAIRED. * REPACE FUEL INJECTOR SEALS/ORINGS $1,462.80 *REPLACE ALL 4 FUEL INJECTORS $2,512.62 SO, PLEASE TELL WHY THERE IS NO RECALL ON MY CAR????? MARK BOULTINGHOUSE (240)277.9752
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707802December 30, 2025
AIR BAGS
I slid on snow during a storm and hit head on to an oncoming car and my car has been deemed a total loss. During the crash not a single airbag at all deployed. I hit the windshield and the dash, at least one should have gone off, but none of them deployed in the car
Crash:
Yes
Fire:
No
Injuries:
2
Deaths:
0
#11706783December 23, 2025
STEERING
While executing a right turn, the steering wheel became locked. The driver attempted to apply the brakes, but they were unresponsive. Consequently, the vehicle collided with the divider.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11702433December 2, 2025
UNKNOWN OR OTHER
The sunroof exploded on my CLA without external interference. The glass shattered everywhere causing a loud explosion and Major safety issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701109November 23, 2025
FUEL/PROPULSION SYSTEM, ENGINE
My 2019 Mercedes-Benz CLA 250 has become unsafe to drive due to strong gasoline fumes filling the cabin. The smell is overwhelming and makes it difficult — and frankly dangerous — to sit in the vehicle for more than a few minutes without feeling lightheaded. I have since learned that this issue is part of a known defect covered under NHTSA Recall #21V961, which affects 2016–2020 CLA 250 models for a fuel leak and potential fire hazard. Despite the recall directly describing this exact problem — fuel vapors entering the passenger compartment — I was told that Mercedes-Benz will not cover the repair costs, even though the recall was never performed on my car. This is deeply concerning, as gasoline fumes inside the cabin pose not only a serious health risk from inhalation but also a potential fire or explosion hazard. It’s unacceptable that a manufacturer would refuse to remedy a safety recall issue, especially one involving a known fuel system defect that could endanger both the driver and passengers. I’m left with a car that’s unsafe to drive and a manufacturer unwilling to take responsibility for a problem they’ve already acknowledged through the NHTSA.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699978November 17, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699248November 13, 2025
ELECTRICAL SYSTEM
I have sent the below email over 100 times to Mercedes To whom it may concern, I am writing regarding the purchase of a CLA250 4matic in December. I had a 120 point inspection done that did not show any issues with this car. As I was driving down a dark road around 1 am, my life was thrown in danger as the command shaft shut off and I could not see the dashboard or any lights in the vehicle. I was alone and on a dark road. After sitting for 15 minutes, I was able to get a light to come on and drove to my destination. On my way home, the lights were acting erratic and the brake lights, bright lights, engine lights, gas gauge, rpm gauge and caution lights were flickering the entire time. The car had no problems starting, however this continued to happen. I parked the car for several days and after starting it again, the dashboard was black, I could not see to put it in park. I tried several days later and got the lights to come on and after driving through the light, the parking brake was thrown in place as I was driving, almost ejecting me from this vehicle. I immediately turned around and parked the car for over a week until bringing it to your service location at Atlanta South. The car put my life in danger, almost ejecting me out of the car. Thankfully I was not on the highway driving higher speeds or I would have been killed.. I am asking for Mercedes Benz to cover the entire amount for the command which I was told during service check was defective and wiring issues within the command. The cost is over $2,900. I believe this is a manufacturing defect whether you have any recalls on it or not. I will file a safety recall complaint with the NHTSA Nation vehicle recall for these vehicles of this make and model advising that you could be killed while driving this car without further recall. I have had other Mercedes benz vehicles and never had this problem. This is a matter of life or death. The car is currently parked at the dealer after inspection.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698613November 10, 2025
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
My 2019 Mercedes-Benz CLA 250 has become unsafe to drive due to strong gasoline fumes filling the cabin. The smell is overwhelming and makes it difficult — and frankly dangerous — to sit in the vehicle for more than a few minutes without feeling lightheaded. I have since learned that this issue is part of a known defect covered under NHTSA Recall #21V961, which affects 2016–2020 CLA 250 models for a fuel leak and potential fire hazard. Despite the recall directly describing this exact problem — fuel vapors entering the passenger compartment — I was told that Mercedes-Benz will not cover the repair costs, even though the recall was never performed on my car. This is deeply concerning, as gasoline fumes inside the cabin pose not only a serious health risk from inhalation but also a potential fire or explosion hazard. It’s unacceptable that a manufacturer would refuse to remedy a safety recall issue, especially one involving a known fuel system defect that could endanger both the driver and passengers. I’m left with a car that’s unsafe to drive and a manufacturer unwilling to take responsibility for a problem they’ve already acknowledged through the NHTSA.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697599November 5, 2025
AIR BAGS
The contact owns a 2018 Mercedes-Benz CLA250. The contact stated that while driving and turning the steering wheel to the left, there was an abnormal clicking sound coming from the vehicle. Additionally, the electrical features on the steering wheel failed to operate as needed. The contact stated that several days later, the same failure returned with air bag and a "Front Left Malfunction - Service Required" message displayed on the instrument panel. The contact spoke to her mechanically inclined brother and was informed that the failure was likely related to a defective clock spring. Upon investigation, the contact discovered NHTSA Campaign Number: 17V627000 (Air Bags) ,which the contact linked to the failure. The contact went to the local dealer's website and communicated with an agent through the Live Chat feature. The contact was informed that the vehicle was not included in the recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to Mercedes-Benz CLA-Class