13 of the
39 complaints about the 2022 Mercedes Benz C 300 are about the
driver-assist systems — 33% of everything
reported for this model year.
Half of the failures with a mileage on record happened before
12,250 miles.
Refer to Mercedes Complaint letter dated August 21, 2025. Refer to EDR report of the crash Mercedes Benz is claiming no responsibility for the failure of Active Brake Assist (ABA) during a frontal impact collision that resulted in the car total loss. The sensors also didn't work resulting in no alert to the driver and nothing recorded on the car camera system.
NHTSA complaint #11710517 — an unverified report by a vehicle owner.
Clarksburg, MDCrash
FORWARD COLLISION AVOIDANCE: WARNINGS
Refer to Mercedes Complaint letter dated August 21, 2025. Refer to EDR report of the crash Mercedes Benz is claiming no responsibility for the failure of Active Brake Assist (ABA) during a frontal impact collision that resulted in the car total loss. The sensors also didn't work resulting in no alert to the driver and nothing recorded on the car camera system.
NHTSA complaint #11710517 — an unverified report by a vehicle owner.
White Plains, NY
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
All on a sudden the entire screen goes blank. It has happened at least 4 times and each time the service center does some patching and it works for a few month. When it happens, all the safety features are off including reverse camera. Also, no way to set the temperature or turn of the AC. In both cases, it can lead to significant damage. The recent incident happened when I was a very busy area and without any safety feature, the car was pretty much un-drivable.
NHTSA complaint #11647755 — an unverified report by a vehicle owner.
Santa Ana, CA
BACK OVER PREVENTION: WARNINGS
When starting vehicle, center screen of vehicle was completely off and dark. Moreover, with this screen being off, you are not able to control any of the vehicle functions such as AC, Maps, Radio, Rear Camera, etc. On the other hand, on the digital speedometer screen, a warning message states "Blind Spot Assist Inoperative" and when putting the vehicle in gear, a loud beep sounds within the car and then the next warning message appears that states, "PARKTRONIC" inoperative see owners manual"
NHTSA complaint #11628347 — an unverified report by a vehicle owner.
Santa Ana, CA
LANE DEPARTURE: BLIND SPOT DETECTION
When starting vehicle, center screen of vehicle was completely off and dark. Moreover, with this screen being off, you are not able to control any of the vehicle functions such as AC, Maps, Radio, Rear Camera, etc. On the other hand, on the digital speedometer screen, a warning message states "Blind Spot Assist Inoperative" and when putting the vehicle in gear, a loud beep sounds within the car and then the next warning message appears that states, "PARKTRONIC" inoperative see owners manual"
NHTSA complaint #11628347 — an unverified report by a vehicle owner.
Santa Ana, CA
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
When starting vehicle, center screen of vehicle was completely off and dark. Moreover, with this screen being off, you are not able to control any of the vehicle functions such as AC, Maps, Radio, Rear Camera, etc. On the other hand, on the digital speedometer screen, a warning message states "Blind Spot Assist Inoperative" and when putting the vehicle in gear, a loud beep sounds within the car and then the next warning message appears that states, "PARKTRONIC" inoperative see owners manual"
NHTSA complaint #11628347 — an unverified report by a vehicle owner.
The contact owns a 2022 Mercedes-Benz C300. The contact stated while driving at unknown speeds, the active brake assist was not functioning properly. The brakes were applied without an object around the vehicle. There were no warning lights illuminated. The local dealer was contacted and scheduled an appointment. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 20,000.
NHTSA complaint #11554281 — an unverified report by a vehicle owner.
Port Orange, FL
FORWARD COLLISION AVOIDANCE: WARNINGS
- What component or system failed or malfunctioned, and is it available for inspection upon request? NHTSA Recall ID: 23V445, Fuel Pump Delivery Module How was your safety or the safety of others put at risk? Vehicle at risk to lose drive power, increasing the chance of crashing while operating. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No. Mercedes dealership states they will not repair recalls on the weekends only M-F. I work at the hospital M-F 0800-1700. The dealership will not make any accommodations in assisting me with my schedule to get car fixed. They refuse to let me make apt on Sat/Sundays and they will not have car towed to and from Mercedes dealership to my work. They have suggested for me to leave work around 1400 to drop car off and pick up a loaner for repairs M-F. This is not feasible.
NHTSA complaint #11545779 — an unverified report by a vehicle owner.
Austin, TX1 injured
BACK OVER PREVENTION: WARNINGS
Throughout the year, the car had many issues, the blind spot sensors and glass sensors didn't work, and it constantly showed that the stop/start system wasn't working. Twice, the car turned off by itself at a stoplight. Since everything is controlled through the car's large monitor, including the navigation, air conditioning, and all other functions, the monitor frequently shut off and it was necessary to turn it off and on again, or wait until the next day for it to work again. The scariest incident happened during a heavy rainstorm. I was driving on the road surrounded by other cars when my car suddenly stopped abruptly and began to park itself in the middle of the road. All sensors failed! The cameras were going in and out without stopping, all sensors were beeping loudly and flashing, the check engine light came on, and the blind spot sensors wouldn't turn off. I couldn't do anything with the car or control it. I turned the car off and on four times just to get it off the road. When I called Mercedes, they didn't think it was a serious problem and made me an appointment for a month later. I brought the car in, but they didn't give me any timelines or updates on what was happening with my car. I called them for five days, but they didn't even look at it. Please help me resolve the issue with my car and the dealership!
NHTSA complaint #11527619 — an unverified report by a vehicle owner.
Elk Grove, CA
LANE DEPARTURE: BLIND SPOT DETECTION
Upon starting my vehicle today the center screen did not power on. The vehicle displayed several messages indicating various safety features were unavailable, including blind spot assist, lane keeping assist, parking assist, etc. Additionally, the exterior cameras (e.g., reverse camera) were inoperable as well. Since the center screen controls the sound system and climate control system, those systems were also unavailable. I restarted the car several times but the screen remained off. I purchased this car in August 2022 and have driven it approx. 3,600 miles - this is the second time this issue has occurred. The first time happened in Sept 2022 and it resolved by itself the following day. However, I believe this problem presents a safety concern since most, if not all, of the vehicle's various safety systems are disabled when it occurs.
NHTSA complaint #11523571 — an unverified report by a vehicle owner.
Elk Grove, CA
FORWARD COLLISION AVOIDANCE: WARNINGS
Upon starting my vehicle today the center screen did not power on. The vehicle displayed several messages indicating various safety features were unavailable, including blind spot assist, lane keeping assist, parking assist, etc. Additionally, the exterior cameras (e.g., reverse camera) were inoperable as well. Since the center screen controls the sound system and climate control system, those systems were also unavailable. I restarted the car several times but the screen remained off. I purchased this car in August 2022 and have driven it approx. 3,600 miles - this is the second time this issue has occurred. The first time happened in Sept 2022 and it resolved by itself the following day. However, I believe this problem presents a safety concern since most, if not all, of the vehicle's various safety systems are disabled when it occurs.
NHTSA complaint #11523571 — an unverified report by a vehicle owner.
The contact owns a 2022 Mercedes-Benz C300. The contact stated that while driving approximately 40 MPH, the active brake assists erroneously activated, causing the vehicle to abruptly stop in the middle of the road, nearly causing a rear end collision by another vehicle. During the failure there were no vehicles or objects present in front of the vehicle to cause the active braking system to be activated. The vehicle was taken to the local dealer who was unable to determine the cause of the failure. The manufacturer was notified of the failure. The failure mileage was 4,500.
NHTSA complaint #11518822 — an unverified report by a vehicle owner.
San Francisco, CA
LANE DEPARTURE: BLIND SPOT DETECTION
There have been two complete failures of the control module /screen in the center dash of the vehicle which operates all vehicle features and some key safety features. The screen simply ceases operation and shuts down all controls for the vehicle. The first incident occurred shortly after purchasing the vehicle new in June 2022 and then again on 8/7/22
NHTSA complaint #11478169 — an unverified report by a vehicle owner.