2018 Mercedes-Benz AMG C43 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2018 Mercedes-Benz AMG C43, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Other / unspecified430.8%
- Tires & wheels215.4%
- Powertrain (other)215.4%
- Seat belts17.7%
- Body & structure17.7%
- Visibility17.7%
- Electrical17.7%
- Engine17.7%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
THE VEHICLE HAD A FRONT PASSENGER SIDE CRACKED RIM AND DAMAGED RUN FLAT TIRE.
CONTINENTAL CONTISPORTCONTACT SSR TIRES SIDE WALL RIP/TEAR (MERCEDES BENZ), THIS IS THE FORTH REPLACED TIRES, COMPLAINED SEVERAL TIMES AND FALLS ON DEATHS EARS. MY CONCERN IF A MAJOR CRASH DO TO THE TIRES THEN WHO IS AT FAULT. REPLACING IT SEVERAL TIMES IS NOT THE ANSWER. TAKING THESE TIRES OFF THE ROAD WILL SAVES LIVES. CAR ONLY HAS 6000 MILES ON IT.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
CONTINENTAL CONTISPORTCONTACT SSR TIRES SIDE WALL RIP/TEAR (MERCEDES BENZ), THIS IS THE FORTH REPLACED TIRES, COMPLAINED SEVERAL TIMES AND FALLS ON DEATHS EARS. MY CONCERN IF A MAJOR CRASH DO TO THE TIRES THEN WHO IS AT FAULT. REPLACING IT SEVERAL TIMES IS NOT THE ANSWER. TAKING THESE TIRES OFF THE ROAD WILL SAVES LIVES. CAR ONLY HAS 6000 MILES ON IT.
2 BLOWOUTS, 1 TIRE SHREDDED, 1 VALVE STEM LEAK. BLOW OUT AT 11, 800 MILES.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
PURCHASED CAR JULY 2018. A/C LEAK IN AUG 2018 AND MARCH 2019; DEALER LOCATE LEAK. FRONT TIRE BLOWOUT WITHIN 6 MONTHS OF PURCHASE (DEC 2018) TRAVELING ON FREEWAY EVENING TIME APPROX 65 MPH; UNKNOWN REASON . SAME SIDE FRONT TIRE BLOW OUT 4 MONTHS LATER (MARCH 2019) DRIVING LATE EVENING ON A MAIN BOULEVARD TRAVELING 25 MPH AND RIGHT FRONT TIRE SHREDDED; HIT MINOR POTHOLE BOTH FRONT TIRES HAD TO BE REPLACED AND THE CAR ALIGNMENT CORRECTED. 1 MONTH LATER (APRIL 2019) RIGHT REAR TIRE LOOSING PSI EVERY 45 MILES; DEALER COULD NOT DETECT LEAK, POSSIBLE VALVE STEM. SAME VISIT DEALER REPLACED TWO REAR LEAKING SHOCK ABSORBERS AND NOTED RIGHT REAR TIRE HAD UNEVEN WEAR /RECOMMEND REPLACEMENT; TIRES HAVE 21,000 MILES. I WILL HAVE TO RETURN THE CAR TO THE DEALER FOR REPAIR. THE TRANSMISSION HAS A VERY HARD SHIFT WHEN I ACCELERATE MORE THAN MODERATE; THE HARD SHIFT CAUSES THE VEHICLE TO PAUSE AND JAR /JERK ABRUPTLY THAT ALMOST SEEMS LIKE YOU HIT SOMETHING. I HAD REPORTED THE ISSUE WITHIN 7 DAYS OF PURCHASE AND I WAS TOLD AMGS HAVE HARD SHIFTS. WHEN I INSISTED THERE WAS AN ISSUE A SECOND TIME IN MARCH 2019; THE ISSUE WAS ADDRESSED AND I WAS TOLD IT WAS THE COMPUTER SOFTWARE THAT REQUIRED AN UPDATE; THE UPDATE TEMPORARILY CORRECTED THE PROBLEM FOR APPROX 1 MONTH. THE VEHICLE HAS BEEN OUT OF SERVICE FOR APPROXIMATELY 13 DAYS SINCE PURCHASED 9 MONTHS AGO IN JULY 2018.
NEW VEHICLE WITH UNDER 1000 TOTAL MILEAGE. INTERNAL PRESSURE CONTROL VALVE IN TRANSMISSION FAILED CAUSING MAJOR DAMAGE TO TRANSMISSION WITH METAL SHAVING FOUND IN TRANSMISSION PAN. TRANSMISSION AND FAULTY VALVE NEEDED TO BE REPLACED UNDER WARRANTY.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
Mercedes-Benz C-Class convertibles from the 2017 to 2021 model years are being recalled because the seat belts might not comply with federal Occupant Crash Protection standards. The problem is that the front seat belts might not fully retract to their stowed position because of the geometry of the front seat belt retractor. The dealers are refusing to fix this issue.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
Incorrect bonding of the rear window. The rear window bond is failing which is causing the window to detach from the convertible top. The bonding is failing in many different locations, causing not only detachment, but the failure is also causing fine hairline cracks at the points of failure. The dealership refused to correct the defect, informed I would have to pay $3,000.00 to correct the failure of the bonding.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
Incorrect bonding of the rear window. The rear window bond is failing which is causing the window to detach from the convertible top. The bonding is failing in many different locations, causing not only detachment, but the failure is also causing fine hairline cracks at the points of failure. The dealership refused to correct the defect, informed I would have to pay $3,000.00 to correct the failure of the bonding.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
The contact owns a 2018 Mercedes-Benz C43 AMG. 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 had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
PURCHASED CAR JULY 2018. A/C LEAK IN AUG 2018 AND MARCH 2019; DEALER LOCATE LEAK. FRONT TIRE BLOWOUT WITHIN 6 MONTHS OF PURCHASE (DEC 2018) TRAVELING ON FREEWAY EVENING TIME APPROX 65 MPH; UNKNOWN REASON . SAME SIDE FRONT TIRE BLOW OUT 4 MONTHS LATER (MARCH 2019) DRIVING LATE EVENING ON A MAIN BOULEVARD TRAVELING 25 MPH AND RIGHT FRONT TIRE SHREDDED; HIT MINOR POTHOLE BOTH FRONT TIRES HAD TO BE REPLACED AND THE CAR ALIGNMENT CORRECTED. 1 MONTH LATER (APRIL 2019) RIGHT REAR TIRE LOOSING PSI EVERY 45 MILES; DEALER COULD NOT DETECT LEAK, POSSIBLE VALVE STEM. SAME VISIT DEALER REPLACED TWO REAR LEAKING SHOCK ABSORBERS AND NOTED RIGHT REAR TIRE HAD UNEVEN WEAR /RECOMMEND REPLACEMENT; TIRES HAVE 21,000 MILES. I WILL HAVE TO RETURN THE CAR TO THE DEALER FOR REPAIR. THE TRANSMISSION HAS A VERY HARD SHIFT WHEN I ACCELERATE MORE THAN MODERATE; THE HARD SHIFT CAUSES THE VEHICLE TO PAUSE AND JAR /JERK ABRUPTLY THAT ALMOST SEEMS LIKE YOU HIT SOMETHING. I HAD REPORTED THE ISSUE WITHIN 7 DAYS OF PURCHASE AND I WAS TOLD AMGS HAVE HARD SHIFTS. WHEN I INSISTED THERE WAS AN ISSUE A SECOND TIME IN MARCH 2019; THE ISSUE WAS ADDRESSED AND I WAS TOLD IT WAS THE COMPUTER SOFTWARE THAT REQUIRED AN UPDATE; THE UPDATE TEMPORARILY CORRECTED THE PROBLEM FOR APPROX 1 MONTH. THE VEHICLE HAS BEEN OUT OF SERVICE FOR APPROXIMATELY 13 DAYS SINCE PURCHASED 9 MONTHS AGO IN JULY 2018.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .