Convertible, gasoline, AWD/All-Wheel Drive, built in Germany. Owner complaints on file from Oct 16, 2018 to Jul 7, 2025.
Owner complaints about this model year, by the year they were filed with NHTSA.
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 23V-854 | Dec 15, 2023 | Front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair,… | Structure | 2,976 | Part replacement |
| 21V-197 | Mar 19, 2021 | Front roof panel located between the windshield and the panoramic sunroof may not have been bonded correctly to the vehicle during a prior repair | Structure | 15,096 | Repair or modification |
| 21V-058 | Feb 5, 2021 | Software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the… | Communication | 1,292,258 | Software update |
| 21V-032 | Jan 29, 2021 | Front seat belts might not fully retract to their stowed position | Seat belts | 24,550 | Repair or modification |
| 19V-586 | Aug 9, 2019 | Mounting bracket for the 12-volt battery may not be secured | Electrical system | 26,584 | Part replacement |
| 19V-130 | Feb 26, 2019 | Seatbacks of the front seats may not properly lock on the right side of the seat | Seats | 22,637 | Part replacement |
| 18V-838 | Nov 27, 2018 | Status of the passenger side air bag may not display correctly | Airbags | 104,663 | Software update |
| 18V-456 | Jul 10, 2018 | Due to a bonding issue introduced in the production process, the rear beltline trim may separate from the vehicle | Structure | 10,826 | Part replacement |
| 18V-207 | Mar 29, 2018 | Seatbacks of the front seats may not properly lock on the right side of the seat | Seats | 3,088 | Part replacement |
| 18V-150 | Mar 6, 2018 | Backrest rail and backrest fitting may not be properly welded on the driver and front passenger seats | Seats | 99 | Part replacement |
| 17V-627 | Oct 6, 2017 | Driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air… | Airbags | 495,290 | Not stated |
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
13 complaints on file, page 1 of 1.
I was driving around my neighborhood one day with my panoramic sunroof open and at the red light i wanted to close the sunroof (california summer sun is no joke) and it made this really big 'THUMP' noise, thought the sunroof glass cracked. After the big THUMP noise, the sunroof wouldnt close and this is after the light turned green so i am driving slowly because there was rattling noise coming from the sunroof and didnt want the sunroof to fly out from the car. So i had to pull over and try to figure out if its okay to drive with stuck sunroof with it rattling noise. after that i tried to close and open the sunroof and wouldnt move or do anything, it was just stuck. So i turned my hazzards on then drove slowly back home. after about 30 mins playing with sunroof in my garage, hoping that i will close (then at least i can still drive my car without being scared that it will fly out from my car), finally go it to closed but now it doesnt work at all. then i have found out that from 2014 to 2018 pano sunroof is known issue and there were safety recall on some pano sunroof already on this model. i called 6 places and they told me (besides from how many they had already repaired) the holder on the sunroof rail is broken so the whole rail assy needs to be replaced. imagine if i was on a freeway going 65+ and if this would have happend and this HUGE pano sunroof flew out from my car... this is very big safety issue and that probably why 2017 (same pano sunroof) was on a recall.
NHTSA complaint 11671664Panoramic roof suddenly shattered while driving on a clear day.
NHTSA complaint 11558978Incorrect 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.
NHTSA complaint 11538137Damaged cords on the soft top interior trim with the following characteristics: - Cord snapped - Cord worn - Cord torn out - Cord sheathing damaged Cause: Possible high tensile stresses on the cords during the soft top sequence
NHTSA complaint 11476629Mercedes-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.
NHTSA complaint 11469200The 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.
NHTSA complaint 11418320THE VEHICLE HAD A FRONT PASSENGER SIDE CRACKED RIM AND DAMAGED RUN FLAT TIRE.
NHTSA complaint 11413199I WAS TOLD THAT THE PRESENT RECALL HAD BEEN REPAIRED. YOU STILL HAVE IT AS AN OPEN RECALL, WITHOUT A PRESENT FIX. HOW LONG DOES IT TAKE TO REMOVE A RECALL?
NHTSA complaint 11400097CONTINENTAL 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.
NHTSA complaint 112026782 BLOWOUTS, 1 TIRE SHREDDED, 1 VALVE STEM LEAK. BLOW OUT AT 11, 800 MILES.
NHTSA complaint 11196193PURCHASED 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.
NHTSA complaint 11196192I HAVE OWNED THE CAR FOR ABOUT 14 MONTHS AND DRIVEN JUST OVER 10,000 MILES DURING THAT TIME. I HAVE NOW HAD MY FIFTH FLAT OR DAMAGED FRONT TIRE SINCE OWNERSHIP OCCURRING ON BOTH DRIVER SIDE AND PASSENGER SIDE. THE DEALER REPLACES THE TIRE, WITH THE OEM REPLACEMENT, FIRST AT MY COST OF AROUND $400 EACH AND THEN EACH SUBSEQUENT TIME FOR $35 UNDER THE INCLUDED ROAD HAZARD WARRANTY. I HAVE CONTACTED THE DEALER AND MBUSA ABOUT THIS REOCCURING ISSUE WHICH THEY STATE IS NOT UNDER RECALL AND IS AN ISSUE WITH THE TIRE MANUFACTURER. HOWEVER, I FAIL TO SEE HOW THEY ARE NOT RESPONSIBLE BECAUSE THEY CHOSE THE OEM TIRE SUPPLIER. IN EVERY CASE EXCEPT ONE, THE TIRE ISSUE WAS CAUSED BY A RELATIVELY SHALLOW POT HOLE OR PAVEMENT DEFECT. THE ONE EXCEPTION WAS WHEN I CAME IN CONTACT WITH A MORE SUBSTANTIAL POT HOLE AT NIGHT (I DIDN'T SEE IT) AND THE TIRE BLEW OUT COMPLETELY AND I HAD TO ABANDON THE CAR OVERNIGHT UNTIL THE DEALER COULD TOW IT THE NEXT DAY. ONE TIME, THE CAR WAS TRAVELING AT HIGHWAY SPEEDS, BUT OTHER TIMES IT WAS ON BACK ROADS AT SPEEDS OF NO MORE THAN 35-40 MPH. THE TIRES ARE RUN FLAT TIRES AND THE CAR HAS NO SPARE SO I AM RELUCTANT TO DRIVE AT NIGHT AND DEFINITELY CANNOT TAKE ON ANY TRIPS FOR FEAR OF GETTING STRANDED.
NHTSA complaint 11171194NEW 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.
NHTSA complaint 11140526Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.