Home · 2015 Mercedes-benz C-class Hybrid · Complaints

What 435 owners told NHTSA about the 2015 Mercedes-benz C-class Hybrid

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (435)Crash / fire / injury (13)Engine (134)Fuel system (75)Body & structure (73)Electrical system (54)Steering (28)Suspension (28)Airbags (26)Transmission & drivetrain (23)Visibility & wipers (17)Brakes (10)

10 of 435 complaints match · Brakes · clear filters

May 28, 2026TiresBrakes

The contact owns a 2015 Mercedes C300. The contact stated that the driver's side rear brakes and rotors were rusted. The contact stated that when the brakes were applied, they were slow to respond. The TPMS warning light was illuminated. The vehicle was taken to a braking center, which declined the warranty for the aftermarket parts. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The approximate failure mileage was 176,000.

NHTSA ODI 11740646

Aug 29, 2023BrakesEngine

My crankcase vent valve needs to be replaced also EBD traction abs module which alone cost over 1500 for part needs to be replaced

NHTSA ODI 11541416

Mar 9, 2022Electrical systemBrakesCrash

Car was parked in Garage with garage door open. Wife and I wanted to go biking and the bikes needed air in the tires. Pre-positioned one bike directly behind parked car and one parallel with the pneumatic air pump prepositioned to inflate the tires. Went to driver's side door and started car with foot on the brake and pushed the button. I then plugged in the adapter for the air pump into the cigarette lighter. The whole time the driver's side door was open and the car was not moving. I exited the car and walked backwards and knelt down abeam the left rear automobile tire to inflate the bike tire. I started the pump at the unit and started to connect the hose to the bike tire, I was then hit from behind by the car door which bent backwards as it passed over me in reverse at low speed. The bike may have saved me by creating a wedge to bend the door back and away from me. The car started down my driveway and dragged the bike parked behind it underneath wedged and sparking across the ground. I got some scrapes but jumped after the car and tried to stop it by trying to slow it with my weight and strength and it was not stopping or slowing. I was worried I may get run over a second time and let it continue to roll at low idle speed across the street and into the neighbor's car that was parked. I am positive the car was not moving after I started it and I didn't have my foot on the brake to engage the reverse function one I exited the vehicle. I believe that the car engaged in reverse once I started the air pump. Maybe it was a voltage or electrical spike. I have used this pump setup many times before to inflate the car's tires and my bike tires but never saw it do this before.

NHTSA ODI 11455877

Sep 9, 2020SteeringAirbagsBrakesCrash2 injuries

WHILE DRIVING MY 2015 C250 COUPE, I HAD TO BRAKE HARD AS I WAS TRYING TO AVERT STOPPED HEAVY TRAFFIC. WHEN I SLAMMED ON THE BREAKS, THE STEERING WHEEL, COLUMN AND ENTIRE VEHICLE LOCKED UP. I WAS UNABLE TO TURN THE WHEEL ENTIRELY. AS A RESULT, MY VEHICLE SLIDE INTO ANOTHER VEHICLE FROM BEHIND. BECAUSE BOTH THE STEERING AND BRAKES LOCKING, I WAS UNABLE TO MANEUVER THE VEHICLE TO AVOID THE STOPPED TRAFFIC. THE AIRBAGS ALSO DID NOT DEPLOY AS THEY SHOULD HAVE.

NHTSA ODI 11353979

Jul 27, 2019Electrical systemAirbagsBrakes

TAKARA RECALL

NHTSA ODI 11235220

Mar 13, 2019Brakes

EXCESSIVE BRAKE DUST WHEN DRIVEN EVEN A FEW MILES. FEEL INSECURE DRIVING IN TRAFFIC.

NHTSA ODI 11186573

Feb 22, 2018Body & structureBrakesDriver assistanceCrash

I WAS DRIVING AT APPROX. 20-25 MPH DURING DAY LIGHT AND ALL OF A SUDDEN THERE WAS LIGHT BLINKED ON MY DASHBOARD FOR APPLYING THE BRAKES BECAUSE OF ANOTHER VEHICLE AHEAD OF ME. I APPLIED THE BRAKES AS WELL AS BRAKE ASSIST PLUS SYSTEM GOT ACTIVATED AS WELL. BUT STILL MY VEHICLE END UP HITTING THE VEHICLE AHEAD OF ME. THE BRAKE ASSIST PLUS SYSTEM WHICH IS CLAIMED BY MERCEDEZ TO TAKE BRAKE AUTOMATICALLY TO BRING THE SYSTEM TO HALT IN CASE OF EMERGENCY DID NOT WORK AND IT END UP HITTING ANOTHER VEHICLE IN FRONT OF MY VEHICLE

NHTSA ODI 11074407

Apr 11, 2017BrakesFuel system

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ C300. WHILE DRIVING AT AN UNKNOWN SPEED, THE VEHICLE STALLED. WHILE APPLYING THE BRAKE PEDAL, THE VEHICLE MADE AN ABNORMAL NOISE AND JERKED. THE VEHICLE WAS TAKEN TO THE DEALER ON THREE OCCASIONS WHERE IT WAS DIAGNOSED THAT THE FUEL INJECTORS NEEDED TO BE REPAIRED. THE VEHICLE WAS REPAIRED. THE FAILURE MILEAGE WAS 9,800.

NHTSA ODI 10971862

Jul 21, 2016Electrical systemSpeed controlBrakes

COLLUSION PREVENTION SYSTEM INOPERATIVE. CAUSES CAR TO SLOW SLOW DOWN AND OR STOP WHILE ON THE ROAD. POSES A SEVERE LIFE THREATENING DRIVING CONDITION FOR ME AND OTHER DRIVERS. MANY OTHER MERCEDES BENZ OWNERS ACROSS THE USA, CANADA, AND JAPAN ARE COMPLAINING OF THE SAME ERROR MESSAGE AND ISSUES. MY MBUSA ADVISOR STATED HER VEHICLE IS DOING THE SAME THING. MY SERVICE ADVISOR AT THE DEALERSHIP STATED ITS MICE THAT ARE EATING THE WIRES. I AM TAKING MY VEHICLE TO TWO OTHER MECHANICS FOR OPINIONS ON THE CAUSE OF THE ERROR MESSAGE. I HAVE DOCUMENTS FROM OTHER MERCEDES BENZ OWNERS WHO HAVE COMPLAINED OF THE SAME ISSUE AND ERROR MESSAGE.

NHTSA ODI 10887534

Sep 14, 2015Brakes

I HAD TWO ISSUES WITHIN 2 MONTHS OF BUYING THE CAR EARLIER IN THIS. I PURCHASED THE CAR IN EARLY FEB 2015. I HEARD A LOUD SOUND IN THE HEATING UNIT, THEN A SMALL CLICKING SOUND ENSUED FOR OVER A WEEK. BROUGHT IT IN, THE MOTOR HAD BLOWN, SO THEY REPLACED IT WITHOUT A DIME OUT OF MY POCKET. THEN IN MARCH, I WAS DRIVING ABOUT 35 MILES PER HOUR WHEN A VERY LOUD NOISE LIKE BAD BREAKS STARTED AND WOULDN'T STOP NO MATTER WHAT I DID. WE TOWED IT USING MERCEDES, BUT HAD TO PAY FOR AN UBER TO THE DEALERSHIP. IT WAS AGAIN ANOTHER MALFUNCTION WITH THE NEW MODEL, AND THEY FIXED THE BREAKS AND ROTORS THAT SAME DAY WITHOUT A DIME OUT OF MY POCKET. I NOW HAVE 6500 MILES ON IT SINCE I GOT IT IN FEB THIS YEAR, AND THE CHECK ENGINE LIGHT CAME ON. I TRIED TO REPLACE THE FUEL CAP BUT THAT DIDN'T MAKE IT GO AWAY AND THE CAR IS DRIVING FINE. IM BRINGING IT IN LATER THIS WEEK. I SAW REPORTS THAT THERE ARE SOME CARS WITH THIS FUEL ISSUE THATS CAUSING THIS INDICATOR. OVERALL THIS ONE PARTICULAR CAR I LEASED IS A TOTAL DUD, BUT I HOPE THESE REPORTS HELP OTHERS WITH SIMILAR ISSUES.

NHTSA ODI 10763696

Working with the data? Download all 435 complaints as CSV · fetched from NHTSA July 25, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2015 Mercedes-benz C-class Hybrid verdict →