2019 Mercedes Benz C Class: Recalls, Complaints & California Lemon Law

Upon starting engine while parked the engine vibrated roughly then stopped. Engine light and coolant light illuminated but shut off. Vehicle proceeded as normal, however, as I proceeded for the highway about 1 - 1/2 blocks and approximately 1,200 feet before approaching highway the vehicle 1200 abruptly lost acceleration; engine light and coolant light illuminated again, then engine abruptly shut down in the middle of the road causing a severe safety hazard. Putting myself and others at risk. There were no symptoms of the problems prior to the failure. Coolant leakage; sluggish engine/acceleration; jerking acceleration; coolant light illumination steady.

NHTSA #11738906

While driving on highway, the engine light came on, a diagnostic test was performed by dealer, oil control valve defected) This could cause engine to lock up while driving, a serious safety concern. I contacted Mercedes Benz corporate office seeking help, because of factory defect. They're not assisting me with this extreme safety matter!!

NHTSA #11712677

The contact owns a 2019 Mercedes-Benz C300. The contact stated that the "Service Engine Soon" warning light was illuminated. The contact restarted the vehicle several times; however, the warning light remained illuminated. The vehicle was taken to an independent mechanic who retrieved DTC code: P0600 -which was related to the secondary oil pump. The vehicle was then taken to another dealer where the contact was informed that the vehicle could be repaired at that location; however, the contact was later informed that the dealer did not have the part needed to service the vehicle and referred the contact to another dealer. The vehicle was taken to a dealer where another diagnostic test was performed, and the dealer confirmed the failure. The contact was provided an estimate for the repair but declined the repair. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The failure mileage was approximately 32,000.

NHTSA #11626838

My 2019 Mercedes-Benz C300 Coupe’s front driver seat belt will not fully retract to its stowed position. This creates THREE safety hazards: 1.Passenger Trip Hazard: The extended belt causes difficulty when exiting from the rear seat — passengers can easily trip over the non-retracting belt 2.Door Damage Risk: Belt gets stuck in the door, preventing proper closure and potentially damaging the door or wearing down the seat belt webbing 3.Safety System Failure: A belt that doesn’t retract properly may not fully restrain occupants in a crash, compromising the seat belt safety system Dealer Response: My dealership told me this is “out of pocket” repair cost, even though the identical retraction issue exists in 2017–2021 C-Class Cabriolet (A205 platform) vehicles that ARE covered under Safety Recall 21V-032000. Mercedes fixed this with damping foam adjustment in the recalled Cabriolets but is refusing the same repair on C300 Coupes. Defect Pattern: This is the same design flaw in the front seat belt retractor geometry that caused the recall. The distance between the retractor and damping foam within the B-pillar doesn’t meet production specifications. Safety Risk: If occupants find the belt inconvenient due to poor retraction, they may not wear it — increasing crash injury risk. No advance warning of retractor failure exists. Request: NHTSA should investigate whether the C300 Coupe should be included in this recall or if a separate recall is needed for the same defect. Vehicle Info: 2019 Mercedes-Benz C300 Coupe

NHTSA #11742426

Front seat belts do not automatically retract.

NHTSA #11667937

Our vehicle, VIN [XXX] , is a 2019 Mercedes C300 2 door coupe. We purchased it as a certified preowned vehicle from Mercedes of Bellevue in Washington State last March 2023. We noticed soon after taking possession of the vehicle that the front driver and passenger seat belts were not retracting into the resting place when not in use. We took it to the service department. The service team there told us that it was an "inherent" problem with a series of vehicles including ours and the there was nothing they could do to fix it. We didn't accept this explanation and returned the car to the dealer service department with the demand that it be fixed. In the meantime, I found a NHTSA recall # 21V-032 that addresses the exact issue for this car model within the production dates that it falls. However, a search of the vehicle VIN [XXX] comes up with zero Unrepaired Recalls. This must be an error. As stated above, the symptom that the vehicle is demonstrating is exactly that described in the recall notice. Given this data, we have pause about driving the vehicle until the seat belt is repaired. The dealer is working on a repair with assistance from Mercedes Engineering. According to them, the prescribed repair in the recall notice does not apply since this vehicle doesn't have the mentioned "damping foam". I am requesting support from the NHTSA to make sure all Mercedes vehicles that suffer this deficiency are included in the recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #11564415

The contact owns a 2019 Mercedes-Benz C300. The contact stated that while driving and attempting to close the sunroof, the sunroof made an abnormal popping sound. The contact pulled over and attempted to close the sunroof, but the sunroof failed to close. The contact related the failure to NHTSA Campaign Number: 21V197000 (Structure); however, the VIN was not associated with the recall. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not contacted. The failure mileage was approximately 53,000.

NHTSA #11729410

I was driving on the hwy 94 in Minneapolis and I had the cap to my sunroof fly off on the freeway. There’s a recall out on the sale vehicle but 4matic but not on my vin number. This is a huge safety issue and it’s been happening to quite a few people I know. No one was injured and it didn’t cause damage to any other vehicle but when I brought it into the shop they said the recall that was on this part was not for my exact vehicle.

NHTSA #11691716

The contact owns a 2019 Mercedes-Benz C300. The contact stated that the convertible top support were fraying. The contact stated the parts were almost the thickness of a shoelace and enabled the convertible top to fold correctly when the top was folding down. The contact stated that the Part Number was A2057780500. The contact had taken the vehicle to a local dealer, where it was diagnosed, and the dealer determined that the entire convertible top needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure, and the contact filed a case. The failure mileage was approximately 43,000.

NHTSA #11704696

I was leaving a gas station after pumping gas, and as I began to turn onto the road my car failed to respond in any way. It would not accelerate or break, the wipers suddenly came on and the headlights and emergency lights began blinking off and on. I was 1/2 second from being t-boned in the driver-side door by an oncoming Ford F350. The Ford F350 driver lost control of their vehicle trying to swerve to avoid hitting my car and did a 360-degree turn in the middle of the road, almost being hit multiple times by other vehicles because the Ford F350 ended up in the lane of oncoming traffic. Only by the Grace of God no one was seriously injured or killed. The SC State Trooper coincidently witnessed the incident and said I should contact the NHTSA, to report what happened when I understood what would cause the car to become incapacitated mid-operation. My car would not turn off and NONE of the controls to anything in the car would work. It took the tow truck driver over 2 hours to figure out what fuse to pull to force the car to turn off before it could be towed. It was towed to the Mercedes dealership on Laurens Road, Greenville SC. 9 weeks later, last week, I got a call from the service tech, he explained to me the drain tubes in my sunroof were clogged, which caused water to flood the front seat floor subcompartments. He said so much water had flooded the subfloor that even 9 weeks later over 3 gallons of water were vacuumed out. The water had caused major damage to the electrical junction boxes in the subfloor and caused them to short out, incapacitating my car while driving. The tech explained there was no way I could have prevented the damage or even known the tubes were clogged, or the subfloor was becoming flooded. There are no maintenance requirements listed for the drain tubes that could have made me aware that the car could become incapacitated while in drive causing serious risk to myself and other drivers. This should be looked into ASAP.

NHTSA #11624574

I think the recall is on communication software. I contacted Mercedes Benz many times in the past 2 years. Mercedes Benz asked its dealer to do the recall but dealer said they cannot do it. Mecedes Benz also said their software supplier had not found a solution yet.

NHTSA #11698435

The manufacturer recalled car due communication module's SIM card software problem more than 2 years ago. I went to the dealer where I bought the car and also contacted the manufacturer several times but still have not been able to solve the problem.

NHTSA #11625732

I drive 40-50 miles per day in this vehicle. I noticed a wobble develop last week, so I stopped into a local service shop to see if maybe a tire weight fell off. They brought me into the garage and spun all four tires individually in front of me...Every one of them was no longer a circle, more oval shaped. All four rims lost their shape. I drive this car on a highway to work every day with occasional potholes and rough concrete connections, but nothing notable over the last 11k miles I have put on the car in 8 months of ownership. The wheel repair shop who rolled them back in to shape told me "Mercedes-Benz and BMW are our most frequent customers" either for dents, cracks, or curb rash. He even went on to say "AMG rims may be the softest on the road. Even a speed bump going a little too fast will destroy an AMG rim." Sure enough, another C43 AMG was parked next to me in the parking lot when I picked my car up and a 2011-2013 C250 with the AMG sport styling package had just parked. I think seeing three AMG products in for the same reason is more than a coincidence. Furthermore, all four wheels to have lost their shape at only 33k miles total on the car is also hard to believe. After further research, it seems many Mercedes-Benz, especially AMG, drivers are facing similar problems; C43 with 5 cracked rims over 2 years, C43 with 1 rim replaced after 1 month of ownership, C43 with all new wheels after owner discovered 3 cracked rims out of the 4. Many stories. Given the violent wobble at highway speeds, it is scary to think that potholes could render these cars undrivable. These cars are advertised with performance in mind, yet rims that crumble under normal driving conditions, such as my 22 mile drive to work every day. Marketing speed and hardcore driving is reckless for cars prone to develop oval shaped wheels under these conditions. Specifically, the 19" AMG sport rims like the package on my car. No warning lights or anything either.

NHTSA #11498249

This is actually the second time I met the issue within the four years I own the car. After some researches, I decide to file this complain so some 3rd party can investigate into it. I have a Mercedes AMG C63s 2019 version with 19 inch OEM wheel. Firstly, it was a low tire pressure light. The dealership confirmed the tire was fine and there was actually a crack on the inner portion of the wheel that was causing the tire to leak air. I did not remember hitting a pothole or anything, and the tire showed no signs of damage so the wheels must be defective. But the dealership did not recognize it and would charge $1500/wheel to replace it. Please investigate into the Mercerdes AMG C-class OEM wheel rim as I also saw tons of people complaining this issue in a MB forum. The tricky part is that when another driver argued with the dealership that if they were not responsible for the wheel crack, he would take the wheel for a full evaluation. Then the dealership was willing to replace the wheel for free for the driver. Please investigate into this issue as wheel crack is serious safety issue.

NHTSA #11496477

I own a 2019 Mercedes AMG C43. I had 2 cracked rims which the insurance company claims that it is a manufacturers defect and not due to hitting holes in the road. The city of Chicago, where I reside, has many pothole problems. Which can be tough to avoid. After reading Mercedes Benz forums and finding there are many people having issues with these rims cracking. Most of my driving is in the city and not high speed but others have reported that the rims have cracked during highway driving and they have had tire losses as well. I believe there to be a risk with these rims cracking so easily, and causing damage to tires as well. Thought I should pass this on

NHTSA #11478570

The contact owns a 2019 Mercedes-Benz C300. The contact stated that while driving at various speeds, the vehicle suddenly lost motive power and decelerated. The accelerator pedal was depressed while attempting to accelerate. The contact stated that the fuel gauge failed to accurately display the level of fuel in the tank. The check engine warning light was intermittently illuminated. The vehicle was taken to the dealer, who diagnosed that the fuel level sensors had failed. The fuel tank and fuel pump needed to be replaced. The vehicle was not repaired. The contact became aware of NHTSA Campaign Numbers: 23V880000 (Fuel System, Gasoline), and 23V445000 (Fuel System, Gasoline); however, the model year was not included. The manufacturer was informed of the failure. The manufacturer referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 157,000.

NHTSA #11688189

The contact owns a 2019 Mercedes-Benz C300. The contact stated while driving, the vehicle failed to exceed 15 MPH. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The vehicle was scanned, and the mechanic retrieved fault codes indicating a failure with the high-pressure fuel pump. The contact was informed that the high-pressure fuel pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 34,945.

NHTSA #11624818

The contact owns a 2019 Mercedes-Benz C300. The contact stated while driving 45 MPH, the contact noticed smoke coming from the front passenger's side wheel well. The vehicle was driven to the residence. Upon arriving at the residence, the contact raised the hood, and became that clear liquid was burning on the engine. The contact stated that after completing an investigation, it was determined that the clear liquid was the result of a leaking fuel line. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 76,000.

NHTSA #11574692

Odometer Fraud. The contact purchased a 2019 Mercedes-Benz C300. The contact stated that after purchasing the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. The contact stated that at the time of purchase, the odometer reading was approximately 54,000 miles. At the time of registration, the mileage was approximately 54,000 miles, and the same mileage was also reflected on the Carfax report. The contact stated that the mileage discrepancy was later discovered through a public report with the Federal Trade Commission (FTC); however, the mileage was not provided. The contact stated that the mileage discrepancy occurred after two OTA’s were performed on the vehicle. The contact stated that during the OTA’s on the vehicle, the mileage was changed. The contact stated that several documents with the mileage discrepancies were listed with the FTC. The contact also reported the discrepancy to the Department of Motor Vehicles.

NHTSA #11716768

TL* THE CONTACT OWNS A 2019 MERCEDES BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT CALLED MERCEDES-BENZ MANHATTAN (770 11TH AVE, NEW YORK, NY 10019, (212) 629-1600) WHERE IT WAS CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND INFORMED THE CONTACT THAT THE UPDATE WOULD HAPPEN AUTOMATICALLY. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

NHTSA #11413391

TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300W4. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V586000 (ELECTRICAL SYSTEM). THE CONTACT STATED THAT MERCEDES-BENZ OF CALDWELL (LOCATED AT 1230 BLOOMFIELD AVE, WEST CALDWELL, NJ 07006, (973) 227-3600) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT NOTIFIED. THE PART WAS NOT AVAILABLE FOR THE REPAIR. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

NHTSA #11267955

Engine stuttered violently while driving 40mph. Check engine light was coming on and off. I immediately pulled to the roadside for my safety. I put the vehicle in park and cycled the ignition and the problem disappeared. the vehicle stuttered twice a few miles as I was taking the vehicle to the garage. I haven't had it serviced yet. The vehicle was serviced in the past for a Recall that had similar issues.

NHTSA #11676589

The contact owns a 2019 Mercedes-Benz C 300. The contact stated that while driving 65 MPH, the vehicle inadvertently lost motive power, and was unable to accelerate above 25 MPH. The check engine warning light was illuminated. The vehicle was taken to the dealer, who determined that the PCM required a software update. The vehicle was repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 36,000.

NHTSA #11637804

WAS STOPPED AT RED LIGHT. WHEN IT TURNED GREEN, PULLED UP WAITING FOR TRAFFIC TO CLEAR FOR A LEFT TURN; ONCE TRAFFIC CLEARED, ATTEMPTED TO ACCELERATE THROUGH TURN BUT VEHICLE WOULD NOT MOVE. MOVED FOOT BACK TO BRAKE THEN TO GAS, STILL NO MOVED. TRIED TO CONFIRM VEHICLE WAS IN DRIVE, NOTICED MESSAGE ON INSTRUMENT PANEL "TRANSMISSION FAILURE". VEHICLE WOULD NOT SHIFT INTO OR OUT OF ANY GEAR, AND WOULD NOT MOVE. SHUT OFF VEHICLE AND RESTARTED, VEHICLE THEN SHIFTED AND MOVED NORMALLY. WAS ABLE TO CLEAR INTERSECTION.

NHTSA #11204150

The fuel hose on the right hand side of the vehicle is leaking onto my engine. You can easily see this leak and smell it when unlocking the car in the morning. It is dangerous and could easily result in a fire.

NHTSA #11638548

Po52E71- Emissions issue with crankcase. Mercedes implemented an extended warranty on various models but excluded 2019 C300, which definitely has the same issues. See below in reference to previous models. IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is extending the warranty coverage on the intake line assembly in certain Model Year (“MY”) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 15 years/150,000 miles (whichever occurs first) due to the following condition: • Under certain circumstances, the partial-load ventilation valve (a part of the intake line assembly) may not work as intended, resulting in the illumination of the check engine Malfunction Indicator Lamp (‘MIL’). A faulty partial-load ventilation valve might also increase exhaust gas emission. Model Model Years Sales Designation C-Class 2015 – 2018 C 300, C 300 4MATIC C-Class Convertible 2017 – 2018 C 300 Convertible, C 300 4MATIC Convertible C-Class Coupe 2017 – 2018 C 300 Coupe, C 300 4MATIC Coupe C-Class Hybrid 2016 – 2018 C 350e E-Class 2017 – 2019 E 300, E 300 4MATIC GLC 2016 – 2019 GLC 300, GLC 300 4MATIC GLC Coupe 2017 – 2019 GLC 300 4MATIC Coupe GLC Hybrid 2018 – 2020 GLC 350e 4MATIC SLC 2017 – 2020 SLC 300 SLK 2016 SLK 300

NHTSA #11648766

When depressing the throttle, occasionally there is no response form the engine or a significant delay coupled with erratic engine revving behavior. When this happens the car has no drive power, but power brakes and steering are unaffected. The engine sits at idle speed. This has happened on multiple occasions when in or crossing traffic. The issue may present and then disappear after 15-45 seconds with no other action being taken.

NHTSA #11549824

Leaking fuel as described in one of the previous recalls for the car. There is a fire hazard but the VIN is not listed as being eligible.

NHTSA #11633699

Gas smell coming from engine area when car has been sitting overnight. Smell comes from driver's side of engine compartment. Gas smell does not happen when car is running. Smell fills up our 2-car garage causing concern when we start the car in the morning.

NHTSA #11611601

I WAS PULLING OUT OF A PARKING LOT ONTO A HIGHWAY WITH A POSTED LIMIT OF 55 MPH. AS I PULLED OUT ONTO THE HIGHWAY THE GAS PEDAL JUST STOPPED WORKING. THE CAR WAS ON BUT IT JUST WOULDN'T GO ANYWHERE. A VEHICLE COMING FROM MY LEFT AT A HIGH RATE OF SPEED HAD TO PUT ON IT'S BRAKES IN ORDER NOT TO STRIKE THE DRIVER'S SIDE OF MY DOOR. IT CAME WITHIN 2 FEET OF MY VEHICLE. I TURNED OFF THE CAR AND RESTARTED IT. WHEN I RESTARTED THE VEHICLE I TURNED OFF THE "ECO" BUTTON AND DROVE A COUPLE OF MILES BACK TO MY HOME WITH NO PROBLEMS. NOTE....I HAVE NO IDEA IF THE "ECO" BUTTON HAS ANYTHING TO DO WITH IT. THE VEHICLE HAS BEEN AT THE MERCEDES DEALER IN FORT WORTH SINCE SATURDAY JANUARY 30TH. THEY TELL ME THEY CAN'T FIND ANYTHING WRONG WITH THE VEHICLE. I'M NOT SURE WHAT THEY EXPECT ME TO DO ABOUT IT. THE CAR IS UNSAFE TO DRIVE.

NHTSA #11395598

The contact owns a 2019 Mercedes-Benz C300. The contact stated while driving approximately 40 MPH and making a left turn, the steering made an abnormal sound. The contact pulled into the nearest parking lot, where the steering wheel locked. There were messages for the brake assist and the rear sensors displayed. The contact stated that he turned off and restarted the vehicle; however, the failure persisted. The vehicle was towed to the residence. The vehicle was then towed to the dealer, where it was diagnosed that the steering rack was fractured and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 18V850000 (Steering). The manufacturer was notified of the failure and informed the contact that they could not cover the repair because the VIN was not included in a recall. The failure mileage was approximately 43,000.

NHTSA #11531402

The steering wheel tilt no longer works

NHTSA #11447433

TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300. THE CONTACT STATED THAT WHENEVER THE STEERING WHEEL WAS TURNED LEFT OR RIGHT, THERE WAS A GRINDING SOUND COMING FROM THE STEERING WHEEL. THE CONTACT CONTACTED MERCEDES BENZ OF BROOKLYN (1800 SHORE PKWY BROOKLYN NY 11214; (718) 258-5100) WHO STATED THEY WERE AWARE OF SIMILAR ISSUES HOWEVER, THERE WAS NO RECALL. THE VEHICLE HAD NOT BEEN DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THE FAILURE WAS TYPICALLY CAUSED BY AN IMPACT. THE MANUFACTURER HAD NOT INSPECTED THE VEHICLE. THE APPROXIMATE FAILURE MILEAGE WAS 17,506.

NHTSA #11360247

Mercedes C300 4Matic 2019 model, active brake assist malfunction (not working )

NHTSA #11446532

ON SEPTEMBER 5TH AROUND 4:30 PM, I MADE A COMPLETE STOP AT A RED LIGHT, ON THE INTERSECTION OF SYKES CREEK PKWY AND SR 520 IN MERRITT ISLAND, FLORIDA. WEATHER WAS PERFECT NO RAIN OR WIND. I APPLIED THE BRAKE HOLD FEATURE AND LIFTED MY FOOT OFF THE BRAKE PAD. ABOUT 3 MINUTES PASSED AND SUDDENLY THE ENGINE TURNED ON AND THE CAR MOVED AND COLLIDED WITH THE CAR IN FRONT OF ME AND SHE HIT THE CAR IN FRONT OF HER. IT WAS NOT HARD HIT AS EVIDENCED BY THE MINOR SCRATCH ON MY FRONT BUMPER (CAR #3) AND ANOTHER MINOR SCRATCH ON THE CAR IN FRONT OF ME (CAR #2), AND NO SCTRACHES AT ALL ON THE CAR IN FRONT OF HER( CAR #1)

NHTSA #11363111

2019 MERCEDES BENZ C300. CONSUMER WRITES IN REGARDS TO DEFECTIVE AUTOMATIC BRAKE SENSOR. *LD THE CONSUMER STATED THE AUTOMATIC BRAKE SENSOR WAS BEING TRIGGERED WITHOUT REASON. THE CONSUMER REQUESTED TO BE REIMBURSED FOR THE VEHICLE. *JS

NHTSA #11297630

While driving at approximately 65 mph on the I-405 freeway in Irvine, CA during rainy conditions, my 2019 Mercedes-Benz C300 suddenly and completely lost acceleration without warning. At the same moment, a Check Engine Light illuminated on the dash. I was forced to coast across all lanes and stop in the emergency shoulder in a very unsafe area with high-speed traffic passing close by in low visibility rainy conditions. Multiple vehicles nearly struck us, including one that had to emergency brake directly behind my car in the shoulder. I contacted AAA and the vehicle had to be towed because it was not safe or driveable. My girlfriend was also in the car and both of us experienced significant fear and distress during and after the incident. My mechanic retrieved fault code P019185 and stated this is a known software problem with the engine control unit that requires a Mercedes software update and reset of mixture adaptations per a manufacturer LI/service document. This means the manufacturer appears aware of the defect and the required software fix, yet I received no recall notice or safety warning. A sudden total loss of engine power at highway speeds creates an extreme crash risk and life-threatening danger to the driver, passengers, and surrounding traffic. There have been other serious drivability issues with this vehicle in the past (misfires, coolant pipe failure, etc.), but this incident was the most dangerous. I am reporting this because this defect appears safety-related and could easily cause a fatality if it happens to someone else at freeway speeds. Diagnostic Note from official Mercedes-Benz Fletcher Jones of Newport Beach Mechanic: “FAULT CODE P019185, WILL START WITH PERFORMING THE SOFTWARE UPDATE OF ME CONTROL UNIT, RESET THE MIXTURE ADAPTIONS PER LI DOCUMENT AND RECHECK.” Tow Provider: AAA — tow confirmation available if needed.

NHTSA #11708992

I had a A1 service completed on 5.23.25 with Mercedes Benz dealership in Sourh San Francisco. 2233 Gellert Blvd. On [XXX] 48 hrs later as I was leaving working- 4-5 blocks before entering the freeway, my car suddenly struggled to drive over 20MPH and the check engine light came on. I pulled over a block before entering freeway. I had it towed and got a Lyft’ ride home. It was a holiday weekend and I had to rent a car . Vehicle accessed 2 days later . I was told it needed a software update and there was a bulletin that came out in 2024 recommending to have the update and I needed to pay to have it repaired by performing a hard/soft upgrade . No empathy was evident . I said I knew nothing about it - dealership said they weren’t obligated to advise. I could have been in a collision or caused and accident and seriously injured had it occured while on freeway . This should be a recall as my life was at risk and so are others driving this year, make and model. The Mercedes Rep. told me she tested the car and was surprised by how it struggled to get past 20 mph, she thought maybe the mechanic had made an error a few days before. I feel very lucky I wasn’t in an accident- or a worst seriously injured! This bulletin warning should be a recall and looked into for a future recall that could save life’s. Knowing, this is a risk for a possible accident , it’s unacceptable that it is only a bulletin and not mandatory to share with owners of the this car. This was very scary and stressful situation. I was stuck in an area in Oakland, Ca known for high crime. In the end Mercedes waived the repair fee, they said under the circumstances and how my life was put as risk . I still think perhaps a wire or something may been disconnected- but no one will admit. Hence they waived fee. Please investigate , I look forward to your findings. Respectfully, [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #11664002

Started car, put in reverse, reverse camera did not engage, screen blacked out, I restarted car thinking systems and computers needed a re-boot. The backup camera no longer works. Coincidently, in reading the recall of the back-up camera on the 2019 C 300 Mercedes, this fits and checks all the boxes. I would like to get this fixed asap, my car has $63,000 miles, and no backup camera. The safety of this feature is remarkable, and cannot express how often I used it, I can see many things that I cannot see now. This problem has been confirmed by my mechanic. The dealership and MB USA has referred me here. The screen black out was the first and only warning I received before no longer able to engage camera, this happened in late Winter 2025. I am shocked that my VIN is not a part of the recall. Please add this so that I am able to use my back-up camera. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #11683456

The contact owns a 2019 Mercedes-Benz C300. The contact received notification of NHTSA Campaign Number: 22V232000 (Back Over Prevention) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA #11467309

The contact owns a 2019 Mercedes-Benz C300. The contact received notification of NHTSA Campaign Number: 21V058000 (Communication, Electrical System). The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The local dealer along with several other unknown dealers were contact and the contact was informed that the recall repair would be done by the manufacturer as an over-the-air (OTA) update. The contact had not experienced a failure. The manufacturer was made aware of the issue and informed the contact that a timeline for the over-the-air (OTA) update was not available. Parts distribution disconnect.

NHTSA #11419995

TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT EXPERIENCED THE FAILURE WHILE APPROACHING A STOP SIGN WHEN THE VEHICLE FAILED TO ACCELERATE FORWARD WITHOUT WARNING. THE CONTACT COASTED THE VEHICLE 5 MPH TO THE SHOULDER OF THE ROAD. THE CONTACT TURNED OFF AND RESTARTED THE VEHICLE AND THE VEHICLE RESUMED NORMAL OPERATION. THE VEHICLE WAS TAKEN TO MERCEDES BENZ OF BLOOMFIELD (36600 WOODWARD AVE, BLOOMFIELD HILLS, MI 48304, (248) 644-8400) WHERE IT WAS DIAGNOSED THAT THE OVER THE AIR (OTA) MODULE NEEDED TO BE UPDATED. THE OTA WAS UPDATED HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 8,004. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA #11403839

This vehicle was brought to an authorized Mercedes-Benz dealership for regularly scheduled maintenance. Shortly after this service, the vehicle began experiencing significant issues including difficulty accelerating, engine hesitation while driving, and noticeable shaking at idle. This car has never overheated. The vehicle was returned to the dealership for inspection. The dealership diagnosed a cracked cylinder head and advised that the repair requires replacement of the cylinder head at an estimated cost of approximately $11,000. The failed component is available for inspection and the vehicle is currently at the dealership. The vehicle has approximately 46,000 miles, has been regularly maintained, garaged, and driven under normal conditions. These symptoms created engine performance issues that could result in loss of power or inability to accelerate while driving, creating a potential safety risk, especially in traffic or at highway speeds. I regularly transport my young grandchild in this vehicle. The possibility of sudden engine failure, loss of power, or breakdown while driving raises significant safety concerns for myself and any passengers, particularly a young child. The failure has been confirmed by an authorized Mercedes-Benz service center. During my own research, I discovered there have been recalls involving similar engines for the same model year, as well as multiple owner complaints reporting similar engine or cylinder head failures on this vehicle. I contacted Mercedes-Benz customer care on December 17, 2025, after receiving the dealership diagnosis, and was advised that I would receive a response within 72 hours. As of today, I have not received any response. I attempted to call customer care again, but the phone system would not accept a voicemail and no representative answered. My case number with Mercedes-Benz is 19653254. No prior abuse, misuse, or abnormal driving conditions occurred. The vehicle was properly maintained.

NHTSA #11706568

I am writing to formally report an ongoing issue and safety concern with my vehicle. Since the day I purchased the car, I have experienced numerous mechanical problems and have spent a significant amount of money on repairs. In August, I had to take my vehicle to a local repair shop three times due to persistent issues. The car was also towed by AAA three separate times for safety reasons. My main concern is that the vehicle hesitates during acceleration and feels sluggish while driving, which creates a serious safety risk on the road. I contacted Mercedes-Benz and filed a claim regarding this issue; however, I have not received any meaningful assistance or resolution. I am requesting that this matter be re-evaluated and properly addressed as soon as possible, as my safety and the reliability of the vehicle are at risk. Please confirm receipt of this message and advise me on the next steps or any documentation needed to proceed with my claim. Thank you for your prompt attention to this matter. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #11691362

The contact owns a 2019 Mercedes-Benz C300. The contact stated that while at a stoplight, there was an abnormal odor of fuel inside the vehicle. The contact stated that the vehicle failed to respond as needed. The vehicle was restarted and shut off independently. The check engine warning light was illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 21V961000 (Fuel System, Gasoline). The vehicle was towed to an independent mechanic who determined that the failure was a fuel rail failure. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed there were no open recalls on the VIN. The failure mileage was approximately 60,000.

NHTSA #11656739

My Mercedes Benz is a C300 2019, and have 42,000 thousands miles, and the vin number is: [XXX] . I have almost all the problems that are reflected in this page ( Recalls 18 ): [XXX] I live in Puerto Rico, and the authorized dealer in Puerto Rico ( Garage Isla Verde ) is telling me, that I have to pay for the Recalls. I have been a Mercedes Benz fan for 48 years, and for 48 years, the only car I have bought is a Mercedes Benz. Can you help me ? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA #11680791

On the afternoon of February 6, 2024, as I was turning into my driveway to park in front of the garage, my car unexpectedly accelerated despite my foot being on the brake pedal. Despite my attempts to brake, the pedal didn't respond, causing the car to collide with the garage door and subsequently damage storage shelves and containers inside. My mother and two brothers were passengers, returning from my mother's doctor appointment, and she became trapped inside due to the garage door collapsing onto the car. Emergency services were called, and both the fire department and police assisted in freeing my mother from the vehicle. However, the police did not file an accident report since it occurred on private property. Subsequently, I contacted my insurance agent, and the car was towed to a repair shop recommended by the dealer. Today, I was informed by the repair shop that the damages are extensive enough for the car to be considered totaled by the insurance company. Fortunately, the incident did not occur while driving on the freeway or public roads earlier that day, potentially averting a more serious accident. Nevertheless, the ordeal has caused considerable stress and sleep loss for all involved. I have since reached out to the repair shop and dealer to conduct a thorough diagnostic analysis to determine the cause of the malfunction. I've requested copies of the data captured by the On-Board Diagnostics (OBD) system and Event Data Recorder (EDR), emphasizing that this data should not be deleted without my consent. However, I am uncertain about the next steps if the insurance company removes the car from the repair shop and how to access the requested data. Upon researching online, I've discovered numerous similar cases involving Mercedes-Benz cars, with over 20 incidents reported and 11 specifically concerning the same model as mine.

NHTSA #11574602

On Tuesday, the steering wheel failed to operate while making a left turn. While making a left turn the steering wheel locked and the brakes did not function to stop the vehicle. The vehicle continued to steer to the left and I almost hit another vehicle head on. What stopped my vehicle was the emergency brake system activated by almost hitting the other vehicle head on. They luckily saw me head on and tried to quickly move out the way. This happened two times the second time Thursday, there was a school bus to the left of me my car. I was not making a left turn but on a road that the curve went left and the steering wheel locked in that position. My wheel was locked and failed to stop for about 45 seconds with no car in front to trigger the emergency brakes. Immediately to my left was a school bus. The school Bus was not expecting my vehicle to cut them off in this manor, the bus had to make a hard stop to not crash into me. I feel my life and the life of the individuals in the other vehicle and school bus were all put at risk. I towed my car to the dealer and was advised that they did not see any recalls for my vehicle. They also advised me that based on the inspection and the incident details that they would need to replace the steering rack and pinion. My vehicle was operating as it normally did and did not have any system warning prior.

NHTSA #11559214

The contact owns a 2019 Mercedes-Benz C300. The contact stated while driving normally one day, the vehicle randomly lost power steering. There were messages for the brake assist and the rear sensors displayed. The contact stated that he turned off and restarted the vehicle; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed that the steering rack failed and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 18V850000 (Steering). The manufacturer was notified of the failure and informed the contact that they could not cover the repair because the VIN was not included in a recall. The failure mileage was approximately 52,000.

NHTSA #11541866

i was involve in a accident, i was Tbone and the driver side airbags didnt deploy.

NHTSA #11457824

I got my Mercedes C300 4Matic 2019 model car back in 2019 August and since the purchase, I have unfortunately visited the service center more times than I would ideally want and lack of product safety (tires) endangers my life on the road. I'm listing out all the visits for your reference. 10th Feb 2020 (at 3,683 Miles) Left front tire. 23rd Mar 2021 (at 14,002 Miles) Left front, also change Right front to balance the car. 13th Nov 2021 (at 19,984 Miles) Right front tire. 28th Dec 2021 (at 21,084 Miles) Left front tire. "Front Tire Details: Continental 225/40R19 Y XL"

NHTSA #11446535

The automatic trunk lid started to close and hit my head while I was loading groceries into the trunk. It also started to close and hit my wife in the head when she was unloading the groceries about 15 minutes later. This situation was not reproduced or confirmed by a dealer or independent service center. There was no notice or warning of pending failure. There appeared to be no visible injury to either person except for a short pain in the head.

Allegedly reported: 1 injury (as reported to NHTSA). NHTSA #11432020

AUTOMATIC EMERGENCY BRAKING ENGAGES UNNECESSARILY WHEN DRIVING UNDER CHICAGO'S ELEVATED TRAIN TRACKS AND SIMILAR OVERHEAD STRUCTURES. FOR EXAMPLE, WHEN DRIVING ON WABASH AVE IN CHICAGO'S DOWNTOWN LOOP, OR ON LOWER WACKER DRIVE, THE AUTOMATIC EMERGENCY BRAKING ENGAGES WHEN THERE IS NO RISK OF A COLLISION, PARADOXICALLY CREATING A DANGEROUS DRIVING SITUATION. THE DEALERSHIP IS AWARE THIS HAPPENS IN OTHER SIMILAR VEHICLES, AND WHEN I BROUGHT THE ISSUE TO THEIR ATTENTION, SUGGESTED I MERELY CHANGED ROUTES.

NHTSA #11413660

Dear friends, I have received a safety recall message and contacted to my car dealership. Despite I called few times to different Mercedes my dealership (Mercedes DTLA, Mercedes Corporate office) the recall issue has not been fixed. It has been 3 months since I am calling them and requesting to fix the recall as I am psychologically uncomfortable when I have recalls in my car. Unfortunately, recall on my car has not been fixed and they are not able to give me any answer when this issue will be fixed. Kind regards, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA #11419977

TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300W4. WHILE DRIVING VARIOUS SPEEDS, THE ACTIVE BRAKE ASSIST ENGAGED WITHOUT WARNING. THE FAILURE WAS EXPERIENCED SEVERAL TIMES WHILE DRIVING. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF RENO (11500 S VIRGINIA ST, RENO, NV 89511, (855) 661-9151) TO BE DIAGNOSED, BUT A FAILURE CODE COULD NOT BE LOCATED. THE VEHICLE WAS ALSO TEST DRIVEN AND THE FAILURE WAS NOT DUPLICATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND DID NOT ASSIST. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 750. *BF CONSUMER STATED PROBLEM MAY HAVE BEEN IDENTIFIED AND CORRECTED BY DEALER ON SUBSEQUENT VISIT (09/20/2019).*JB

NHTSA #11242687

THE DRIVER SIDE WIPER BLADE IS CONSTANTLY SKIPPING AND SHUDDERING, PREVENTING THE WINDSHIELD FROM BEING PROPERLY CLEARED IN THE RAIN. AFTER 3 VISITS TO THE DEALERSHIP THEY FINALLY TOLD ME THAT THIS IS AN EXISTING ISSUE AND MERCEDES DOESN'T HAVE A FIX FOR IT AND MAY NOT WISH TO FIX IT. I SHOULD CONSTANTLY SPRAY WASHER FLUID ON THE WINDSHIELD, EVEN DURING THE RAIN AS A TEMPORARY FIX IS WHAT I WAS TOLD. I HAVE VIDEO OF THE PROBLEM.

NHTSA #11231113

LED HEADLIGHTS AND TAILLIGHTS ARE FAR TOO BRIGHT. THEY ARE DAMAGING PEOPLE'S EYES. THESE CARS NEED TO BE TAKEN OFF THE ROAD IMMEDIATELY!

NHTSA #11175971