14
Complaints
0
Crashes
0
Fires
0
Deaths

This Problem Across All Years

All Engine Complaints

Showing 14 of 14
Nov 29, 2025

Vehicle: 2019 Mercedes-Benz A220 VIN: [XXX] Dealer: Mercedes-Benz of Walnut Creek (Walnut Creek, CA) I am reporting multiple safety defects involving federally regulated systems. The vehicle has repeatedly activated emergency braking at freeway speeds without reason, posing a significant risk of collision. The brake assist warning appears frequently, and both the front and rear proximity/collision sensors display a full red warning state with continuous audible alerts. These alerts cannot be cleared without manually disabling the safety system each time the vehicle is started. One of the sensors physically detached from the vehicle. Backup and parking assist features do not function correctly, and the vehicle repeatedly shows malfunction warnings. The dealer verbally stated that a “manufacturer-covered engine repair” was needed, but would not disclose the nature of the repair or whether it relates to these safety issues. After two weeks in their possession, the dealer refused to provide written documentation of any diagnostics or repairs performed. They attempted to return the vehicle without confirming whether it is safe to operate and threatened storage fees when I requested written confirmation. These issues involve systems covered under FMVSS 101, 111, 126, and 135, including electronic stability control, braking, rear visibility, and driver-interface warnings. The failures pose a clear safety risk to the driver and other motorists. I am requesting NHTSA review these defects for potential investigation or recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Nov 29, 2025

Vehicle: 2019 Mercedes-Benz A220 VIN: [XXX] Dealer: Mercedes-Benz of Walnut Creek (Walnut Creek, CA) I am reporting multiple safety defects involving federally regulated systems. The vehicle has repeatedly activated emergency braking at freeway speeds without reason, posing a significant risk of collision. The brake assist warning appears frequently, and both the front and rear proximity/collision sensors display a full red warning state with continuous audible alerts. These alerts cannot be cleared without manually disabling the safety system each time the vehicle is started. One of the sensors physically detached from the vehicle. Backup and parking assist features do not function correctly, and the vehicle repeatedly shows malfunction warnings. The dealer verbally stated that a “manufacturer-covered engine repair” was needed, but would not disclose the nature of the repair or whether it relates to these safety issues. After two weeks in their possession, the dealer refused to provide written documentation of any diagnostics or repairs performed. They attempted to return the vehicle without confirming whether it is safe to operate and threatened storage fees when I requested written confirmation. These issues involve systems covered under FMVSS 101, 111, 126, and 135, including electronic stability control, braking, rear visibility, and driver-interface warnings. The failures pose a clear safety risk to the driver and other motorists. I am requesting NHTSA review these defects for potential investigation or recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Jul 14, 2025

I have had numerous issues with my 2019 A220. At 92k mi my cylinder head had to be replaced. My check engine light came on and they said there was a cylinder head leak. At 108k miles I had to have it replaced yet again because my car lost power driving uphill when shifting between 4th and 5th gear. Now at 112k mi the check engine light came on and sure enough they need to replace all 4 ignition coils… Additionally, I have issues with my air vents. They will frequently send air out of a section I have turned off (ex. turn air on my upper body and it sends air to my feet instead). Somewhat related but whenever I turn my car off it makes a lot of strange noises on the inside of the car by my entertainment center, almost similar to a stomach grumbling/farting noises. Lastly, I’ve had issues with trying to close my windows and they’ll close fully but then drop down half an inch or so afterward.

Jul 14, 2025

I have had numerous issues with my 2019 A220. At 92k mi my cylinder head had to be replaced. My check engine light came on and they said there was a cylinder head leak. At 108k miles I had to have it replaced yet again because my car lost power driving uphill when shifting between 4th and 5th gear. Now at 112k mi the check engine light came on and sure enough they need to replace all 4 ignition coils… Additionally, I have issues with my air vents. They will frequently send air out of a section I have turned off (ex. turn air on my upper body and it sends air to my feet instead). Somewhat related but whenever I turn my car off it makes a lot of strange noises on the inside of the car by my entertainment center, almost similar to a stomach grumbling/farting noises. Lastly, I’ve had issues with trying to close my windows and they’ll close fully but then drop down half an inch or so afterward.

Apr 8, 2024

Unknown vehicle won’t go pass 20mph in first and second gear when in third gear it goes passes 20mph

Apr 8, 2024

Unknown vehicle won’t go pass 20mph in first and second gear when in third gear it goes passes 20mph

Jun 8, 2023 25,000 mi

The contact owns a 2019 Mercedes-Benz A220. The contact stated that the engine check warning light was illuminated. The vehicle was taken to the dealer and PCV and purge valve and other unknown valves were replaced but the failure persisted. The vehicle was taken back to the dealer and a software updated was performed; however, the failure reoccurred. The vehicle was taken to the dealer and the contact was informed that the vehicle needed another software update. The vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 25,000.

Jun 8, 2023 25,000 mi

The contact owns a 2019 Mercedes-Benz A220. The contact stated that the engine check warning light was illuminated. The vehicle was taken to the dealer and PCV and purge valve and other unknown valves were replaced but the failure persisted. The vehicle was taken back to the dealer and a software updated was performed; however, the failure reoccurred. The vehicle was taken to the dealer and the contact was informed that the vehicle needed another software update. The vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 25,000.

Jan 15, 2023

Failed Cylinder head. Car diagnostic completed. The issue will cause the engine to stall in traffic and have acceleration issues.

Jan 15, 2023

Failed Cylinder head. Car diagnostic completed. The issue will cause the engine to stall in traffic and have acceleration issues.

Dec 30, 2022

Engine misfiring. The cylinder needs to be replaced which causes the fuel-air mixture not to operate correctly. I see a recall for the issue for the 2019-2020 A class Mercedes but my VIN number does not appear to be associated. Please see the recall below: NHTSA CAMPAIGN ID: 21V961000 Report Date: DEC 12, 2021

Dec 30, 2022

Engine misfiring. The cylinder needs to be replaced which causes the fuel-air mixture not to operate correctly. I see a recall for the issue for the 2019-2020 A class Mercedes but my VIN number does not appear to be associated. Please see the recall below: NHTSA CAMPAIGN ID: 21V961000 Report Date: DEC 12, 2021

Mar 2, 2022 12,000 mi

The contact owns a 2019 Mercedes-Benz A220. The contact stated that while driving approximately 45 MPH, the vehicle erroneously reduced speed to 12 MPH with the check engine warning light illuminated. The vehicle was later towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 12,000.

Mar 2, 2022 12,000 mi

The contact owns a 2019 Mercedes-Benz A220. The contact stated that while driving approximately 45 MPH, the vehicle erroneously reduced speed to 12 MPH with the check engine warning light illuminated. The vehicle was later towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 12,000.