RoadVitals

2011 Mercedes-Benz C 300 Engine Problems

Owner-reported complaints naming the engine system, filed with NHTSA

Data refreshed

Engine reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
11
Latest Jun 10, 2024
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
2%
of 480 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2011 Mercedes-Benz C 300 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 11 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming engine

Shown in the owner’s own words, exactly as filed

EngineSteering
Filed Jun 10, 2024

The car is not starting. no dashboard no lights no window function no seat function no radio. nothing. Ignition lights are not turning on and the car is dead. Car batteries were newly replaced but understand this could be EIS and Steering lock issues which is common in Mercedes Benz models. Why is Manufacturer not compensating / correcting for common errors on his Models?

NHTSA ID
11593432
Incident
Jun 5, 2024
EngineFuel system
Filed Jul 21, 2023

There is a crack in the flange causing a fuel leak in my C300 2011 Mercedes-Benz built March 2011. A strong gas smell fills the car. This situation is extremely dangerous and should be included in the recall that was approved for vehicles C300 manufactured from April 2011-July 2011. Please include my vehicle in this recall. There is only a one month difference.

NHTSA ID
11533738
Incident
Jun 22, 2023
Engine
Filed May 15, 2023
Fire reported

The contact owns a 2011 Mercedes C300. The contact stated that while driving approximately 15 MPH the check engine began flashing and the vehicle stalled. The contact attempted to restart the vehicle and smoke was observed emanating from the front driver's tire. The contact stated that the fire exploded from the engine compartment. Additionally, the contact stated that she was locked in the vehicle by the driver's seatbelt, but was able to get out of the vehicle. The fire department extinguished the fire and a report was taken. There were no injuries sustained. The vehicle was towed to a salvage lot. The contact was not sure if the vehicle restarted. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.

NHTSA ID
11522090
Incident
May 11, 2023
Mileage
120,000 mi
EnginePowertrain (other)Steering
Filed Feb 1, 2023

Electronic steering locks are failing in these cars at an alarming rate. When it fails, the car will be stranded or if driving the car will completely lock the steering and take away control from the driver. This is a safety issue that Mercedes should be recalling and fixing because it will take people's lives away. Mercedes is aware of this issue but is failing to recall it and considering it as non-safety. When manufacturing the Electronic Steering lock, Mercedes used cheap parts that are prone to failure. This issue affected many years and models of their cars but only recalled a few cars. Once failure occurs, the car will not start and it will be required to tow it to a dealership where repairs over $2000 will be needed to fix this SAFETY issue.

NHTSA ID
11505048
Incident
Feb 1, 2023
ElectricalEngine
Filed Feb 1, 2022

Went to work and came out and the vehicle says to remove key from ignition. Was stuck in the middle of the night in freezing temperatures and had no way to get anywhere. It’s a common problem that Mercedes knows about and is charging thousands of dollars to repair because it can only be done through them.

NHTSA ID
11449789
Incident
Jan 25, 2022
ElectricalEngine
Filed Nov 28, 2019

MY CAR SOUND LIKE THE POWER STEERING HAS GONE IT'S VERY LOUD. ALSO SECONDARY AIR FLOW JUST REPLACED AND NOW IT'S GOING TO NEED ANOTHER ONE AT 2000 A POP. FINALLY THE ELECTRICS IS VERY WEIRD. LIGHTS WILL GO OUT THEN COME BACK ON. MY DAY TIME RUNNING LIGHTS STAY ON DAY AND NIGHT NO MATTER WHERE I TURN THE LIGHT SWITCH. THE DAY TIME RUNNING LIGHT IS ON EVEN WHEN I TURN ON HIGH BEAMS. NO MATTER IF IT'S MOVING OR NOT ALL THESE THINGS ARE HAPPENING.

NHTSA ID
11282812
Incident
Sep 5, 2019
AirbagsEngine
Filed Feb 15, 2019

TAKATA INFLATORS THE FIRST RECALL WAS FEBRUARY 2016 FOR THE DRIVER SIDE AIRBAG A REASONABLE AMOUNT OF TIME IS PAST THE PARTS WERE PROMISED IN SEPTEMBER 2018 AND NO DELIVERY. NOW A NEW RECALL OF JANUARY 2019 FOR THE PASSENGER SIDE AIRBAG INFLATOR HAS BEEN ISSUED I'M TOLD BY MERCEDES-BENZ USA THAT THE PARTS WILL BE AVAILABLE SEPTEMBER 2019 . THIS IS AN UNREASONABLE AMOUNT OF TIME GIVEN THE THREE YEARS OF THE PREVIOUS RECALL NOT BEING REMEDIED. ALSO I'M TOLD BY THE DEALERSHIP THAT THE MOTOR MOUNTS ARE COLLAPSED I CAN'T HELP BUT THINK THAT THIS IS A DEFECT ALSO SUBJECT TO RECALL.

NHTSA ID
11180305
Incident
Feb 9, 2016
Mileage
50,000 mi
AirbagsEngine
Filed Feb 13, 2019

TL* TAKATA RECALL. THE CONTACT OWNS A 2011 MERCEDES-BENZ C300W. THE CONTACT STATED THAT THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBERS: 16V363000 (AIR BAGS) AND 16V081000 (AIR BAGS). THE CONTACT ALSO STATED THAT THE VEHICLE FAILED TO START. THE CONTACT ATTEMPTED TO JUMPSTART THE VEHICLE, BUT WAS UNSUCCESSFUL. IN ADDITION, THE AIR BAG INDICATOR ILLUMINATED. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 47,000.

NHTSA ID
11179815
Incident
Feb 12, 2019
Mileage
47,000 mi
AirbagsElectricalEngine
Filed Jan 15, 2019

1. TAKATA RECALL: THIS RECALL OF A DANGEROUS SITUATION HAS BEEN GOING ON FOR ABOUT TWO YEARS NOW IS UNACCEPTABLE AND HAZARDOUS TO EM AND MY FAMILY. 2. LAW SUIT: GREG SUDDRETH AND PAUL DENTON V. MERCEDES-BENZ USA, LLC. ON 10/30/17, I HAD TO PAY 3445.13 FOR A REPAIR MY BALANCE SHAFTS GEARS, WHICH WE'RE DEEMED DEFECTIVE IN ALL M272 ENGINES WHICH IS IN MY C300. HOWEVER, IN THE ABOVE MENTIONED LAW SUIT, THIS PROBLEM WAS SUPPOSED TO HAVE BEEN CORRECTED. WHEN I BROUGHT THIS TO THE ATTENTION TO THE MERCEDES-BENZ OF MODESTO TECHNICIANS, THEY SAID I MISSED THE CUT-OFF DATE BY ONE YEAR. THEY ACKNOWLEDGED I HAD THE SAME PROBLEM AND CHECKED TO SEE IF I QUALIFIED FOR A FREE REPAIR, BUT LATER CLAIMED, THE ISSUE WITH THE DEFECTIVE BALANCE SHAFTS GEARS HAD BEEN ADDRESSED. HOW CAN THAT BE WHEN I INCURRED THE SAME PROBLEM. THE REPAIR SHOULD HAVE BEEN REPAIRED UNDER WARRANTY. I EVENTUALLY HAD TO HAVE THE CAR REPAIRED AT MERCEDES OF PLEASANTON BECAUSE MODESTO DIDN'T HAVE ANY OPEN APPOINTMENTS. THANK YOU FOR YOUR ATTENTION IN THIS MATTER. 3. FAULTY ELECTRONIC STEARING LOCK: ENGINE WON'T TURN ON AND STEEARING WHEEL IS LOCKED. SEVERAL PEOPLE HAVE HAD THIS SAME PROBLEM. MERCEDES CLAIM NOT A SAFETY ISSUE, BUT WHEN YOUR DAUGHTER GETS STUCK AT MIDNIGHT AT AN AMUSEMENT PARK ON HIGH SCHOOL SENIOR NIGHT...THAT'S A SAFETY ISSUE. THANK YOU FOR YOUR ATTENTION IN THIS MATTER.

NHTSA ID
11170265
Incident
Oct 20, 2017
Mileage
106,000 mi
ElectricalEngine
Filed Jan 8, 2018

THE CAR WILL NOT START, NO POWER, NO LIGHTS, NO RADIO, NO RESPONSE AFTER INSERTING THE KEY. I TRIED BOTH KEYS AND SAME ISSUE EXISTS WITH BOTH KEYS. THE ELECTRICAL IGNITION SWITCH NEEDS TO BE REPLACED.

NHTSA ID
11061316
Incident
Jan 3, 2018
Engine
Filed Jul 4, 2014

I BOUGHT THIS CAR NEW IN 2011. AFTER A COUPLE OF MONTHS, STARTED NOTICING A ROTTEN EGG ODOR COMING FROM MY CAR. THE SMELL SEEMS TO COME FROM UNDERNEATH THE CAR. USUALLY OCCURS WHEN I'M GOING 45MPH OR MORE GOING UP A HILL ON A HIGHWAY. TOOK IT TO THE DEALER TO CHECK, SO THEY TOOK THE CAR FOR A TEST DRIVE AND SAID THEY FOUND NO ODORS WHICH I DON'T UNDERSTAND WHY? THEY SAID IT MIGHT BE THE TYPE OF FUEL I USE FOR THE CAR MAY AFFECT IT, BUT I USE PREMIUM GAS ONLY FROM CHEVRON. MERCEDES REALLY NEED TO LOOK INTO THIS, BECAUSE THE SMELL IS HORRIBLE! I'VE BEEN DEALING WITH THIS SMELL FOR ALMOST THREE YRS. NOW. *TR

NHTSA ID
10608253
Incident
Feb 1, 2012
Mileage
4,000 mi

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.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .