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2016 Mercedes-Benz C-Class Problems & Owner Complaints

315 NHTSA owner complaints
7 crash 5 fire 8 injury

Age-normalised, this year draws ~28.6 complaints per year on the road — ranking 5 of 15 Mercedes-Benz C-Class years we track (1 = most complaints per year).

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What owners report

Engine is the most-reported problem area on the 2016 Mercedes-Benz C-Class, cited in 99 of 315 filed complaints (31%).

Fuel/Propulsion System is next (58 complaints, 18%), followed by Electrical System (37), Structure (32), Power Train (21).

Across all complaints, 7 report a crash, 5 report a fire, 8 report injuries.

The most safety-critical cluster is Electrical System: 2 crash, 3 fire, 2 injury report(s).

Complaints by vehicle system

Owner complaints filed with the U.S. NHTSA for the 2016 Mercedes-Benz C-Class, grouped by the vehicle system each cites. A single complaint can name more than one system, so the group totals can add up to more than 315.

Engine 99 2 fire

“TL* THE CONTACT OWNED A 2016 MERCEDES-BENZ C300. WHILE DRIVING 15 MPH, A FIRE ERUPTED FROM THE BATTERY OF THE VEHICLE. THE CONTACT EXTINGUISHED THE FIRE AND STATED THAT WATER ENTERED INTO THE ENGINE, WHICH CAUSED THE VEHICLE TO HYDROLOCK. THE VEHICLE WAS TOWED TO THE DEALER AND DEEMED DESTROYED. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE MANUFACTURER WAS MADE AWARE OF THE FIRE. THE FAILURE MILEAGE WAS 18,500.”
NHTSA complaint #10980435, 2017 · fire

“TL* THE CONTACT OWNS A 2016 MERCEDES-BENZ C300. WHILE DRIVING APPROXIMATELY 71 MPH, A KNOCKING SOUND WAS PRESENT COMING FROM THE ENGINE. THE VEHICLE BEGAN TO THRUST BACK AND FORTH AS IF IT WERE RUNNING OUT OF FUEL. ALSO, A BURNING ODOR WAS PRESENT BEFORE THE SPEED SUDDENLY REDUCED TO APPROXIMATELY 20 MPH. THE SPEED WOULD NOT INCREASE WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE VEHICLE WAS TOWED TO THE LOCAL DEALER (SMITH MOTORS IN HAVERHILL, MA) WHERE IT WAS DIAGNOSED THAT THE ENGINE WAS FAULTY. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. AFTER THREE MONTHS AT THE DEALER, THE MOTOR WAS REPL…”
NHTSA complaint #11044245, 2016 · fire

“NHTSA Safety Complaint – 2016 Mercedes-Benz C300 Vehicle: 2016 Mercedes-Benz C300 | Mileage: 74,662 miles What Happened I’m filing this complaint because my 2016 Mercedes-Benz C300 suffered a sudden, complete engine failure at 74,662 miles, and I believe it’s a safety risk that deserves investigation. I’ve owned this car since 2016 and followed every recommended service interval. All available warranties were purchased and maintained. The car showed absolutely no signs of trouble before this happened. Last week before filing, I was driving normally when the check engine light came on with…”
NHTSA complaint #11739458, 2026

Unknown Or Other 72 2 crash 2 injury

“Panoramic sunroof fails to open/ close evenly due to binding issue and plastic track failure. One side binds while the other moves, causing glass to tilt and jam. Risk of dangerous injury including glass shattering, sudden detachment, distraction while driving, and water intrusion affecting airbags/electronics.”
NHTSA complaint #11733700, 2026 · 1 injury(ies)

“The small plastic located inside the sliding panoramic sunroof explode and the Panasonic sunroof can be open/close or up/down normally but when I hit close it will stop where the broken pieces was and the roof will automatically move back to the fully open position Dealer said need the rail replaced -2057800175 -2057800275 Motor is broken, need to be replaced , he said after saying the roof can go forward and backward, up and down but can’t close completely. I was gullible to believe what the technician and sale guy said. Technically technician can check the voltage and say it for sure if it i…”
NHTSA complaint #11531128, 2023 · 1 injury(ies)

“I was moving my car from one parking space to another space in front of my house. As I was pulling into the new space, I stopped to check the position of my car. As I lifted my foot off the brake, the car unexpectedly started to lurch forward. When I released the brake pedal, the car suddenly accelerated and proceeded to jump the curb and run into the front of my house. Luckily, no one was injured. There was some damage to the exterior of my house. I have reported this issue to the car manufacturer, Mercedes Benz. In response, they have opened a case to research it further.”
NHTSA complaint #11475320, 2022 · crash

Fuel/Propulsion System 58 1 crash

“I was moving my car from one parking space to another space in front of my house. As I was pulling into the new space, I stopped to check the position of my car. As I lifted my foot off the brake, the car unexpectedly started to lurch forward. When I released the brake pedal, the car suddenly accelerated and proceeded to jump the curb and run into the front of my house. Luckily, no one was injured. There was some damage to the exterior of my house. I have reported this issue to the car manufacturer, Mercedes Benz. In response, they have opened a case to research it further.”
NHTSA complaint #11475320, 2022 · crash

“I’ve been driving my car since September when it was purchased I just got it from dealership 4/9/26 spent over $1100 and have been working like regular full time schedule, I wake up today 4/27/26 trying to work and car is stalling. Not sure what’s going on with these mechanics and technicians. I pay to dollar to ensure my family safety on the road here I am stuck without support due to my circumstances. Also, my car just idles the shuts off doesn’t turn mall the way on, magically a check engine light flashed then car just immediately stalled and won’t turn back over all the way.”
NHTSA complaint #11733961, 2026

“Strong fuel smell in cabin Can maybe cause a fire”
NHTSA complaint #11716863, 2026

Electrical System 37 2 crash 3 fire 2 injury

“ON OCT 14TH AT NIGHT CAR WAS DRIVEN IN HEAVY RAIN OFF INTERSTATE I5 OFF RAMP TO EXIT INTERSTATE. THERE WERE CARS BOTH IN FRONT AND BEHIND US EXITING AND UPON DRIVING FURTHER NOTICED THERE WAS STANDING WATER. OTHER CARS WERE MAKING IT THROUGH SLOWLY, THERE WAS NO ROOM TO TURN AROUND. THIS CAR ALMOST MADE IT TO THE END OF THE OFFRAMP AND THEN STALLLED. OTHER CARS WERE FORCED TO GO AROUND. TRIED TO RESTART THE CAR TO NO AVAIL. CALLED FOR ROADSIDE ASSISTANCE. NOTICED SMOKE COMING FROM THE HOOD AND THEN ALL LIGHTING WENT DARK IN CAR. THEN SAW FLAMES FROM THE HOOD. QUICKLY RAN THROUGH WATER TO ESCAP…”
NHTSA complaint #10916229, 2016 · fire · 1 injury(ies)

“The small plastic located inside the sliding panoramic sunroof explode and the Panasonic sunroof can be open/close or up/down normally but when I hit close it will stop where the broken pieces was and the roof will automatically move back to the fully open position Dealer said need the rail replaced -2057800175 -2057800275 Motor is broken, need to be replaced , he said after saying the roof can go forward and backward, up and down but can’t close completely. I was gullible to believe what the technician and sale guy said. Technically technician can check the voltage and say it for sure if it i…”
NHTSA complaint #11531128, 2023 · 1 injury(ies)

“TAKATA RECALL NHTSA RECALL NUMBER 17V114 : PURCHASE THE VEHICLE ON DECEMBER OF 2016, WE GOT A RECALL LETTER IN MARCH OF 2017 LETTING US KNOW OF THE RECALL BUT WAS NOTIFY THAT THE PART IS NOT AVAILABLE FOR REPAIR TILL AUGUST OF 2017 . ON AUGUST 05 THE CAR CAUGHT ON FIRE IN THE MIDDLE OF THE STREET DUE TO RECALL PART.”
NHTSA complaint #11021534, 2017 · fire

Structure 32 1 crash 1 fire 2 injury

“ON OCT 14TH AT NIGHT CAR WAS DRIVEN IN HEAVY RAIN OFF INTERSTATE I5 OFF RAMP TO EXIT INTERSTATE. THERE WERE CARS BOTH IN FRONT AND BEHIND US EXITING AND UPON DRIVING FURTHER NOTICED THERE WAS STANDING WATER. OTHER CARS WERE MAKING IT THROUGH SLOWLY, THERE WAS NO ROOM TO TURN AROUND. THIS CAR ALMOST MADE IT TO THE END OF THE OFFRAMP AND THEN STALLLED. OTHER CARS WERE FORCED TO GO AROUND. TRIED TO RESTART THE CAR TO NO AVAIL. CALLED FOR ROADSIDE ASSISTANCE. NOTICED SMOKE COMING FROM THE HOOD AND THEN ALL LIGHTING WENT DARK IN CAR. THEN SAW FLAMES FROM THE HOOD. QUICKLY RAN THROUGH WATER TO ESCAP…”
NHTSA complaint #10916229, 2016 · fire · 1 injury(ies)

“Panoramic sunroof fails to open/ close evenly due to binding issue and plastic track failure. One side binds while the other moves, causing glass to tilt and jam. Risk of dangerous injury including glass shattering, sudden detachment, distraction while driving, and water intrusion affecting airbags/electronics.”
NHTSA complaint #11733700, 2026 · 1 injury(ies)

“AFTER STOPPING AND WAITING AT A TRAFFIC LIGHT FOR 15-30 SECONDS, I HAD MY FEET ON THE BRAKES AND LEFT TURN INDICATOR ON. THE "HOLD" OPTION TO LOCK MY BRAKES WAS NOT ENGAGED. THE CAR WAS STATIONARY. WITHOUT WARNING, THE CAR SHIFTED INTO DRIVE AND JOLTED FORWARD INTO THE VEHICLE AHEAD OF ME AT THE LIGHT. (I WAS THE SECOND CAR IN LINE, AND I STOPPED ABOUT A HALF CAR LENGTH BEHIND THE OTHER DRIVER.) THE ACCELERATION WAS NOT A TYPICAL, GRADUAL MOVEMENT ASSOCIATED WITH WHAT HAPPENS WHEN I RELEASE MY FOOT FROM THE BRAKE TO DRIVE. IT WAS A SUDDEN AND JARRING JUMP REGARDLESS OF THE FACT THAT MY FOOT NE…”
NHTSA complaint #10907333, 2016 · crash

Power Train 21

“Sudden fracture of the propeller shaft universal joint at freeway speeds causing catastrophic damage to the transmission and exhaust system. This matches the failure described in NHTSA Recall 26V216. While driving on Arizona Freeway 202. Extreme clanking noise heard and lost all power in middle of rush hour. Barely able to navigate vehicle safely off the freeway. No warning whatsoever. Had to be towed to Mercedes Benz Gilbert where documentation provided as to failure.”
NHTSA complaint #11736177, 2026

“My C300 MBZ, 2016 is experiencing the same symptoms as indicated in a recall, but my vehicle is not included in that recall. Camshaft: GENERAL REPAIR A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion or vice versa. Cams act as a vital component to your automobile's engine. A camshaft is a shaft to which a cam is fastened or of which a cam forms an integral part. Camshafts provide power to the cams which are vital for basic engine operation. The cost of fixing this approximately $10,000 per Mercerdes dealer and estimate…”
NHTSA complaint #11733625, 2026

“I am reporting a structural failure of the rear subframe (axle carrier) on my 2016 Mercedes-Benz C300 (W205). The component is exhibiting significant internal-to-external corrosion (perforation), specifically at the suspension mounting points. Safety Impact: The vehicle is currently exhibiting unstable handling and a 'skittish' 'swerving' sensation causing the car to 'fishtail' under braking during normal braking and at highway speeds, indicating a compromise in the structural integrity of the rear axle. This poses an immediate risk of a 'loss of directional control' should the suspension com…”
NHTSA complaint #11732985, 2026

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Steering 17 1 crash 2 injury

“Steering failed at low speeds. Something broke. Caused me to lose complete steering. Very scary and dangerous”
NHTSA complaint #11419052, 2021 · crash · 1 injury(ies)

“The small plastic located inside the sliding panoramic sunroof explode and the Panasonic sunroof can be open/close or up/down normally but when I hit close it will stop where the broken pieces was and the roof will automatically move back to the fully open position Dealer said need the rail replaced -2057800175 -2057800275 Motor is broken, need to be replaced , he said after saying the roof can go forward and backward, up and down but can’t close completely. I was gullible to believe what the technician and sale guy said. Technically technician can check the voltage and say it for sure if it i…”
NHTSA complaint #11531128, 2023 · 1 injury(ies)

“EPS- Electric Power Steering failed while driving causing hazardous and dangerous conditions. While unable to steer the vehicle it crossed the median into oncoming traffic barely avoiding an accident and endangering my life and life of other drivers and passengers. Unlike on hydraulic systems where in case of defective pump it is still possible to steer the car, this electric steering it was impossible to control even to load the vehicle on the tow truck. Terrible technology or design, most importantly it is NOT SAFE !”
NHTSA complaint #11697303, 2025

Visibility 13

“Picked my 5 year old Granddaughter up from camp we had a down tornado warning and we were driving home suddenly the sunroof opens it starts raining on us I hurried and pushed the button to close it when I did it made a loud crunch noise and almost shut but stayed vented and one side is higher than the other. When you try to close it or open it it does move a like but I’m scared it will break on us”
NHTSA complaint #11669488, 2025

“Just purchased this vehicle in Utah, was driving from Utah to Idaho on the interstate at 80mph when all of a sudden my sunroof opened up with high winds and blew right off. Luckily nobody was behind me but I’ve been driving 2 hours without a sunroof due to weak glue/manufacturing defect”
NHTSA complaint #11653994, 2025

“The contact owns a 2016 Mercedes-Benz C300. The contact stated that while driving during rainy weather conditions, water leaked through the sunroof into the interior of the vehicle. In addition, while attempting to close the sunroof, the sunroof glass remained open and slanted on the front and rear diver's sides. Upon further investigation, the contact related the failure to NHTSA Campaign Number: 16V087000 (Visibility); however, the VIN was not included. The vehicle was taken to a local dealer where it was determined that the sunroof rails had failed and needed to be replaced. The vehicle was…”
NHTSA complaint #11624073, 2024

Visibility/Wiper 10 1 injury

“While driving my 2016 Mercedes-Benz C300 on Route 12 in Utica, NY around 8:10 PM on May 29, 2025, the panoramic sunroof spontaneously exploded while in the tilted vent position. It sounded like a gunshot and sent glass raining into the cabin, causing multiple cuts to my hand, ear, arm, and lower back while I was driving. The shock nearly caused me to lose control of the vehicle. Conditions were clear and dry, around 60°F, and I was driving about 50–55 mph. I have reported the incident to Mercedes-Benz USA (Case #14443457). This is a serious safety hazard, and I am concerned about residual gla…”
NHTSA complaint #11663900, 2025 · 1 injury(ies)

“The roof fabric headliner getting separated from its foam backing. That created two sagging fabric pockets on both ends near the rear windshield.”
NHTSA complaint #11637808, 2025

“WHILE DRIVING ON THE HIGHWAY, I HEARD A LOUD NOISE THAT, ON FIRST IMPRESSION, LED ME TO BELIEVE SOMEONE FIRED A GUNSHOT AT AND STRUCK MY VEHICLE. UPON LOOKING UP, I IMMEDIATELY NOTICED IT WAS NOT A GUNSHOT BUT INSTEAD THE GLASS TO THE FRONT PORTION OF MY PANORAMIC SUNROOF HAD SPONTANEOUSLY SHATTERED AND FLEW COMPLETELY OFF THE VEHICLE. THIS FLYING GLASS FLEW DIRECTLY BACKWARDS AND COULD HAVE POSED A DEADLY RESULT FOR THE NUMEROUS DRIVERS TRAVELING BEHIND ME. THERE WERE NO FLYING OBJECTS OR OTHER DANGEROUS INSTRUMENTS THAT STRUCK THE VEHICLE BUT THE SUNROOF SPONTANEOUSLY, ON ITS OWN, SHATTER…”
NHTSA complaint #11386655, 2021

Fuel System 9

“The contact owns a 2016 Mercedes-Benz C300. The contact stated that there was a gasoline odor inside and outside the vehicle on several occasions, while driving at various speeds and while parked. The contact stated that the vehicle failed to accelerate as needed. The contact stated that there was no warning light illuminated, the fuel consumption increased, with the fuel gauge lowered more quickly. The vehicle was taken to an independent mechanic who saw gasoline pooling near the fuel injector, and the coils were leaking between the fuel injector and the fuel rail, and the fuel rail or possib…”
NHTSA complaint #11698896, 2025

“The contact owns a 2016 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, the contact smelled a gasoline odor in the interior of the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who determined that the fuel hose downstream of the fuel pump was leaking. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 18V837000 (Fuel System, Gasoline); but the VIN was not included. The manufacturer was notified of the failure but provided no assistance. The failure mileag…”
NHTSA complaint #11694990, 2025

“The contact owns a 2016 Mercedes-Benz C300. The contact stated that there was an abnormal fuel odor inside the vehicle when the heater was activated. The contact stated that the cabin air filter was replaced; however, the odor was lingering inside of the vehicle. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed and the contact was informed that there was gas leaking onto the transmission and that the fuel rail, fuel hose, and fuel injectors needed to be replaced. The contact referenced NHTSA Campaign Number: 21V961000 (FUEL SYSTEM, GASOLI…”
NHTSA complaint #11642756, 2024

Service Brakes 9 1 crash 1 fire 1 injury

“MY WIFE WAS DRIVING HER CAR ON A PAVED, AND DRY, ROAD. SHE WAS FOLLOWING BEHIND A SUV, THAT APPLIED THE BRAKES ABRUPTLY. SHE HAD DIFFICULTY STOPPING HER CAR AND SHE WOUND UP HITTING THE SUV IN FRONT OF HER. WHILE THIS DOES SOUND UNUSUAL, IT IS FOR THIS CAR (2016 MERCEDES BENZ C300). THE SALESMAN TOLD US THAT THIS CAR WAS EQUIPPED WITH AN ANTI-COLLISION. SYSTEM CALLED "COLLISION PREVENTION ASSIST PLUS". IT IS SUPPOSED TO ACTIVATE A LIGHT ON THE DASH. IF THE CAR GETS EVEN CLOSER YET, IT IS SUPPOSED GIVE AN AUDIBLE ALARM. IF THE DRIVER DOESN'T RESPOND AND THE CAR GETS EVEN CLOSER TO THE CAR IN FR…”
NHTSA complaint #10928892, 2016 · crash · 1 injury(ies)

“TL* THE CONTACT OWNS A 2016 MERCEDES-BENZ C300. WHILE DRIVING APPROXIMATELY 71 MPH, A KNOCKING SOUND WAS PRESENT COMING FROM THE ENGINE. THE VEHICLE BEGAN TO THRUST BACK AND FORTH AS IF IT WERE RUNNING OUT OF FUEL. ALSO, A BURNING ODOR WAS PRESENT BEFORE THE SPEED SUDDENLY REDUCED TO APPROXIMATELY 20 MPH. THE SPEED WOULD NOT INCREASE WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE VEHICLE WAS TOWED TO THE LOCAL DEALER (SMITH MOTORS IN HAVERHILL, MA) WHERE IT WAS DIAGNOSED THAT THE ENGINE WAS FAULTY. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. AFTER THREE MONTHS AT THE DEALER, THE MOTOR WAS REPL…”
NHTSA complaint #11044245, 2016 · fire

“While driving past, close proximity or even going 30-40mph on a local road or even 60-70 on a highway the break assist function will repeatedly beep, and most times it will stop my car for me. This occurs also, when there are no cars near me! It’s very sudden, and unpredictable. on more occasions than few, if i’m driving in the middle of a 3- lane road, and cars are stopping in the far right lane, or making a turn my break assist will malfunction and automatically break. Multiple occasions I feared that a car may rear-end me. It happens alot. Very scary. This has been occurring for more than…”
NHTSA complaint #11560793, 2023

Air Bags 7 2 crash 1 injury

“TL* THE CONTACT OWNS A 2016 MERCEDES BENZ C300. THE CONTACT STATED THAT WHILE PARKED IN A PARKING LOT AND INSIDE OF THE VEHICLE, ANOTHER VEHICLE REAR ENDED THE VEHICLE AT 60 MPH CAUSING THE CONTACT TO CRASH INTO THE PARKING CURB AND THE VEHICLE THAT WAS PARKED IN FRONT WHICH RESULTED IN THAT VEHICLE DEEMED DESTROYED. NONE OF THE AIR BAGS DEPLOYED. THE POLICE WAS PRESENT AND A REPORT WAS ISSUED NUMBER: 7WHQ039TM7NW WAS FILED. THE CONTACT WAS TRANSPORTED TO THE HOSPITAL BY AMBULANCE AND TREATED FOR A FRACTURED RIGHT WRIST AND A FRACTURED LEFT CLAVICLE, HEAD INJURIES, AND NECK INJURIES. THE VEHIC…”
NHTSA complaint #11244933, 2019 · crash · 1 injury(ies)

“I bought a car that had an light accident and turns out to be missing the collision sensor in addition to bad battery that i had to change and had issues with recoding the airbags which are not working now.”
NHTSA complaint #11429489, 2021 · crash

“I WASN'T SPEEDING BUT I DID HIT MY BRAKES BECAUSE I WAS ABOUT TO MISS MY EXIT AND MY AIR BAG JUST EXPLODED.”
NHTSA complaint #11321542, 2020

Wheels 7

“I WAS DRIVING THEN THE STARTED BEEN HARD NOW IT'S SAYING POWER STEERING MALFUNCTION”
NHTSA complaint #11320197, 2020

“DEFECTIVE 19'' MERCEDES-BENZ AMG ALLOY RIM CRACKED AND CAUSED TIRE PRESSURE FAILURE.”
NHTSA complaint #11270791, 2019

“SINCE I BOUGHT THE MY 2016 C450 AMG IN 2016 BRAND NEW I STARTED HAVING ISSUES WITH THE RIMS A MONTH LATER AFTER PURCHASING THE CAR. I TOOK IT BACK TO THE SERVICE DEPARTMENT AND THEY TOLD ME IT WAS A CRACKED RIM ,I RESPONDED BY LETTING THEM KNOW I NEVER RAN OVER ANY POTHOLES.THE RIM WAS REPAIRED, BUT A MONTH LATER AGAIN THE PROBLEM ACCURRED.MY CAR HAS BEEN IN THE SERVICE DEPARTMENT FOR THE SAME PROBLEM EVERY OTHER MONTH FOR THE SAME PROBLEM ON EACH OF MY TIRES ,ALL OF MY TIRES HAVE BEEN CRACKED WITHOUT ME RUNNING INTO POTHOLES.JUST YESTERDAY I RECEIVED MY CAR BACK FROM SERVICE AFTER A WEEK OF T…”
NHTSA complaint #11173497, 2019

Exterior Lighting 4 1 fire 1 injury

“ON OCT 14TH AT NIGHT CAR WAS DRIVEN IN HEAVY RAIN OFF INTERSTATE I5 OFF RAMP TO EXIT INTERSTATE. THERE WERE CARS BOTH IN FRONT AND BEHIND US EXITING AND UPON DRIVING FURTHER NOTICED THERE WAS STANDING WATER. OTHER CARS WERE MAKING IT THROUGH SLOWLY, THERE WAS NO ROOM TO TURN AROUND. THIS CAR ALMOST MADE IT TO THE END OF THE OFFRAMP AND THEN STALLLED. OTHER CARS WERE FORCED TO GO AROUND. TRIED TO RESTART THE CAR TO NO AVAIL. CALLED FOR ROADSIDE ASSISTANCE. NOTICED SMOKE COMING FROM THE HOOD AND THEN ALL LIGHTING WENT DARK IN CAR. THEN SAW FLAMES FROM THE HOOD. QUICKLY RAN THROUGH WATER TO ESCAP…”
NHTSA complaint #10916229, 2016 · fire · 1 injury(ies)

“The contact owns a 2016 Mercedes-Benz C300. The contact stated while driving at an undisclosed speed, the driving assist and another unknown warning light were illuminated. The vehicle was taken to the dealer, where it was determined that the turn signal and steering wheel modules needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was unknown.”
NHTSA complaint #11634394, 2024

“I received a warning that my left front headlight was not working. I took the car to my dealer to have the light replaced. I was told that because this is an LCG assembly the entire assembly unit needed to be replaced and the cost would be $3,500.”
NHTSA complaint #11580896, 2024

Forward Collision Avoidance 3 1 crash

“I bought a car that had an light accident and turns out to be missing the collision sensor in addition to bad battery that i had to change and had issues with recoding the airbags which are not working now.”
NHTSA complaint #11429489, 2021 · crash

“The panoramic sunroof gets stuck on passenger side, and came off the rail on the passenger side as i was driving on the freeway”
NHTSA complaint #11566312, 2024

“While driving past, close proximity or even going 30-40mph on a local road or even 60-70 on a highway the break assist function will repeatedly beep, and most times it will stop my car for me. This occurs also, when there are no cars near me! It’s very sudden, and unpredictable. on more occasions than few, if i’m driving in the middle of a 3- lane road, and cars are stopping in the far right lane, or making a turn my break assist will malfunction and automatically break. Multiple occasions I feared that a car may rear-end me. It happens alot. Very scary. This has been occurring for more than…”
NHTSA complaint #11560793, 2023

Seats 3

“My driver seat bottom has a rip in the seam . It is exposing the heat wires for the heated seats . I can’t use the heated seats because of the wire exposed .”
NHTSA complaint #11637910, 2024

“When starting car you can smell gasoline the smell stays while driving”
NHTSA complaint #11570780, 2023

“SUNROOF WILL NOT CLOSE AT ALL, SEATS WILL NOT ADJUST (ELECTRICAL), WIPER VISIBILITY IS UNCLEAR, DEFROST DOESN'T WORK PROPERLY.”
NHTSA complaint #11394552, 2019

Lane Departure 2 1 crash

“This car is currently stolen out of bishopville south Carolina.”
NHTSA complaint #11513743, 2020 · crash

“The panoramic sunroof gets stuck on passenger side, and came off the rail on the passenger side as i was driving on the freeway”
NHTSA complaint #11566312, 2024

Vehicle Speed Control 2 1 crash

“AFTER STOPPING AND WAITING AT A TRAFFIC LIGHT FOR 15-30 SECONDS, I HAD MY FEET ON THE BRAKES AND LEFT TURN INDICATOR ON. THE "HOLD" OPTION TO LOCK MY BRAKES WAS NOT ENGAGED. THE CAR WAS STATIONARY. WITHOUT WARNING, THE CAR SHIFTED INTO DRIVE AND JOLTED FORWARD INTO THE VEHICLE AHEAD OF ME AT THE LIGHT. (I WAS THE SECOND CAR IN LINE, AND I STOPPED ABOUT A HALF CAR LENGTH BEHIND THE OTHER DRIVER.) THE ACCELERATION WAS NOT A TYPICAL, GRADUAL MOVEMENT ASSOCIATED WITH WHAT HAPPENS WHEN I RELEASE MY FOOT FROM THE BRAKE TO DRIVE. IT WAS A SUDDEN AND JARRING JUMP REGARDLESS OF THE FACT THAT MY FOOT NE…”
NHTSA complaint #10907333, 2016 · crash

“When starting car you can smell gasoline the smell stays while driving”
NHTSA complaint #11570780, 2023

Engine And Engine Cooling 1

“The contact owns a 2016 Mercedes-Benz C300. The contact stated that while at a stoplight, the energy saver START/STOP feature engaged, but the vehicle stalled and failed to restart. There were no warning lights illuminated. The vehicle was towed to an independent mechanic who determined that the START/STOP function failed to operate as designed. The mechanic informed the contact about NHTSA Campaign Number: 17V114000 (Electrical System, Engine and Engine Cooling). The local dealer was not contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The fai…”
NHTSA complaint #11675352, 2025

Seat Belts 1 1 injury

“LEFT REAR SEAT BELT JAMMED UP, TRAPPING MY DISTRESSED 3 YEAR OLD SON. IT WAS NECESSARY TO PHYSICAL CUT THE SEATBELT IN ORDER TO FREE THE CHILD. MID SECTION OF THE SEATBELT CONTRAPTION WAS PULLING PRESSURE ON THE CHILD BODY.”
NHTSA complaint #11032905, 2017 · 1 injury(ies)

Suspension 1

“I am reporting a structural failure of the rear subframe (axle carrier) on my 2016 Mercedes-Benz C300 (W205). The component is exhibiting significant internal-to-external corrosion (perforation), specifically at the suspension mounting points. Safety Impact: The vehicle is currently exhibiting unstable handling and a 'skittish' 'swerving' sensation causing the car to 'fishtail' under braking during normal braking and at highway speeds, indicating a compromise in the structural integrity of the rear axle. This poses an immediate risk of a 'loss of directional control' should the suspension com…”
NHTSA complaint #11732985, 2026

Tires 1

“TL* THE CONTACT OWNS A 2016 MERCEDES-BENZ C300 EQUIPPED WITH CONTINENTAL CONTACT SSR (NA) TIRES, SIZE: 225/45/18 (NA). WHILE DRIVING 30 MPH, THE SIDEWALL FAILED ON THE FRONT PASSENGER SIDE TIRE. THE CONTACT HAD THE TIRE REPLACED. THE CONTACT CALLED CONTINENTAL TIRES ABOUT THE FAILURE AND WAS INFORMED THAT THEY WERE ALREADY AWARE. A FEW MONTHS LATER, THE FRONT DRIVER'S SIDE TIRE EXHIBITED THE SAME FAILURE. CONTINENTAL TIRES WAS CONTACTED ABOUT THE SECOND FAILURE, BUT DID NOT REPLACE THE TIRE. THE DOT NUMBER WAS NOT AVAILABLE. THE TIRE AND VEHICLE FAILURE MILEAGE WAS 26,000.”
NHTSA complaint #11064651, 2017

How we read this (methodology)

How to read this: raw complaint totals are not a clean reliability score — a model year with more cars sold, or simply more years on the road, accumulates more complaints regardless of how good it is. So this page leans on two signals that are not distorted by sales volume: the share of complaints falling on each vehicle system (the breakdown above) and NHTSA's own crash / fire / injury / death flags. When we compare model years of the same model, we normalise by years on the road (complaints ÷ vehicle age) rather than comparing raw totals. Age-normalised, the 2016 Mercedes-Benz C-Class draws about 28.6 complaints per year on the road, ranking 5 of 15 among the Mercedes-Benz C-Class model years we have ingested (1 = most complaints per year on road).

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Data source: U.S. NHTSA (nhtsa.gov). SaveVIN surfaces public recall data and is not affiliated with or endorsed by NHTSA.

SaveVIN

Free vehicle recall & safety reports using public U.S. NHTSA data.

Uses public U.S. NHTSA data SaveVIN is an independent service, not affiliated with, endorsed by, or connected to NHTSA, the U.S. government, or any vehicle manufacturer.
For official recall notices, check nhtsa.gov/recalls and register your vehicle with its manufacturer. SaveVIN alerts are best-effort and do not replace official notices.