FaultScore

FaultScore report

2014 Mercedes Benz C300 problems

Owners have filed 120 complaints about the 2014 Mercedes Benz C300 with NHTSA between 2014 and 2026. The largest single group is the airbags. Across this model's run it ranks 6 of 7 worst.

B

FaultScore 39/100

Higher is worse. Measured against the other years of the Mercedes Benz C300.

How this is worked out

The numbers

120

Complaints

7

Crashes reported

0

Fires reported

3

Injuries reported

34,683 mi

Median mileage at failure

Half of reported failures happened before this

54%

Failed under 36,000 miles

Inside a typical bumper-to-bumper warranty

What kind of bad

The letter says how bad. This says what kind — whether this year drew an unusual number of complaints, unusually dangerous ones, or failures that arrived unusually early.

Complaint volume 15 vs 50 Severity 43 vs 50 Early failure 91 vs 50
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 15
Against the median year of the Mercedes Benz C300. 50 means typical for this model; 100 means roughly double.
Severity — 43
8.3% of these complaints involved a crash, fire, injury or death, against a national rate of 9.7%.
Early failure — 91
54% of failures with a mileage on record happened under 36,000 miles, against a national rate of 29%.

How 2014 compares with every other Mercedes Benz C300

Click any bar to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks on a 2014 Mercedes Benz C300

Every complaint is filed against a part. Follow any row for the complaints about that part alone.

Airbags 53 44.2%

3 crashes, 0 fires · median 27,000 mi

Steering 13 10.8%

1 crashes, 0 fires · median 47,582 mi

Suspension 11 9.2%

Median failure at 1,959 miles

Median failure at 51,500 miles

Electrical System 9 7.5%

Median failure at 56,291 miles

Other & Unspecified 8 6.7%

Median failure at 11,000 miles

Acceleration & Cruise Control 3 2.5%

3 crashes, 0 fires · median 34,366 mi

Seats 2 1.7%
Wheels 2 1.7%
Brakes 2 1.7%
Engine & Cooling 2 1.7%
Doors, Latches & Locks 1 0.8%

Median failure at 51,500 miles

Tires 1 0.8%

Median failure at 1,196 miles

Windows, Mirrors & Wipers 1 0.8%

Median failure at 15,962 miles

Fuel & Propulsion 1 0.8%
Transmission & Drivetrain 1 0.8%

Median failure at 24 miles

When it fails

Odometer readings owners gave when they filed. About half of all complaints include one.

Under 1,000 miles 2 7.1%
1,000 – 9,999 miles 3 10.7%
10,000 – 24,999 miles 5 17.9%
25,000 – 49,999 miles 11 39.3%
50,000 – 74,999 miles 5 17.9%
150,000+ miles 2 7.1%

When owners complained

A spike years after the car went on sale usually means a part wearing out on schedule across the whole fleet — the kind of pattern no single owner can see from inside their own car.

Nov 2014 peak 8 Feb 2026

Recalls on the 2014 Mercedes Benz C300

A complaint is one owner's allegation. A recall is the point at which the manufacturer or a regulator agreed the defect is real and dangerous enough to fix for free — however old the car is.

United States — NHTSA

19V787000

COMMUNICATION

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf

Risk: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.

19V010000

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, GLK 350, GLK250 BlueTec 4Matic, GLK350 RWD, 2015-2017 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2014-2017 E550 Cabrio, and 2014-2016 E550 Coupe vehicles sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally, MBUSA is recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio, 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, 2011 C300, 2011-2014 C300 4Matic, C350, C63 AMG, E350 Cabrio, E350 Coupe, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2011-2016 E550 Cabrio, E550 Coupe, 2011-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." MBUSA is also recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63

Risk: An inflator explosion may result in sharp metal fragments striking the passenger or other occupants resulting in serious injury or death.

17V627000

AIR BAGS:FRONTAL

Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components

Risk: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.

17V252000

STEERING

Mercedes-Benz USA LLC. (MBUSA) is recalling certain 2013-2014 C250, C300 4MATIC, GLK250 4MATIC BLUETEC and GLK350 vehicles, 2013 C250 Coupe, C350, C350 4MATIC Coupe, C350 Coupe and C63 AMG Coupe vehicles, and 2013-2015 GLK350 4MATIC vehicles. The steering coupling connecting bolt may have been insufficiently tightened, possibly resulting in a loss of steering.

Risk: A loss of steering can increase the risk of a crash.

17V177000

ELECTRICAL SYSTEM:SOFTWARE

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 AMG GT-S, GLC300, CLA250 and GLE300d 4Matic vehicles, 2013 C250, E350 BlueTec and G63 AMG vehicles, 2008-2014 C300 vehicles, 2013-2014 C300 4Matic and ML350 4Matic vehicles, 2009 C350 vehicles, 2014 CLS550, E350 4Matic, E350 Coupe 4Matic, E350 Wagon 4Matic, GLK350 and SL550 vehicles, 2012 CLS550 4Matic vehicles, 2012-2016 E350 vehicles, 2016-2017 GL450 4Matic vehicles, 2012-2014 ML350 4Matic BlueTec vehicles, 2015 S550, S550 4Matic and C300 4Matic Sedan vehicles, 2015-2016 C300 Sedan vehicles, and 2017 SL63 AMG vehicles. Various control units on these vehicles may have been updated with incorrect software, potentially affecting the correct deployment of the air bags in the event of a crash.

Risk: If the air bags do not deploy as intended in the event of a crash, there would be an increased risk of injury in the event of a crash.

Recalls cover specific build ranges, so check your own vehicle by VIN at nhtsa.gov/recalls or, in Canada, Transport Canada.

Complaints that involved harm

Reports where the owner recorded a crash, a fire, an injury or a death.

Abingdon, MD Crash

AIR BAGS

2014 MERCEDES BENZ C300. CONSUMER WRITES IN REGARDS TO CONCERNS WITH THE PASSENGER SIDE AIRBAG. *LD THE CONSUMER STATED NUMEROUS CALLS AND ATTEMPTS WERE MADE TO HAVE THE RECALL REPAIR COMPLETED TO NO AVAIL. THE VEHICLE WAS INVOLVED IN AN ACCIDENT ON THE DRIVER'S SIDE; THE AIRBAGS DID NOT DEPLOY. THE VEHICLE WAS TOTALED.

NHTSA complaint #11354673 — an unverified report by a vehicle owner.

at 34,366 miles Simi Valley, CA Crash 3 injured

VEHICLE SPEED CONTROL

TL* THE CONTACT OWNED A 2014 MERCEDES-BENZ C350. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 15-30 MPH, THE VEHICLE INDEPENDENTLY ACCELERATED. THE CONTACT STATED THAT HE WAS UNAWARE OF HOW HIS FOOT ENDED UP UNDER THE ACCELERATOR PEDAL. THE VEHICLE WAS THEN INVOLVED IN A FOUR VEHICLE COLLISION. THE CONTACT STATED THAT ALONG WITH HIS WIFE WHO WAS IN THE CAR AT THE TIME, SHE WAS INJURED ALONG WITH ONE OTHER OCCUPANT OF ONE OF THE OTHER VEHICLES. IT WAS UNKNOWN WHERE THE WIFE WAS SEATED. MEDICAL ATTENTION WAS SOUGHT SEVERAL DAYS AFTER THE COLLISION BY THE CONTACT AND HIS SPOUSE. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOWING LOT. AAA WAS ABLE TO RETRIEVE DATA FROM THE VEHICLE DATA RECORDER. THE CONTACT WAS INFORMED THAT A COMPREHENSIVE REPORT COULD BE ATTAINED BY EQUIPMENT THAT ONLY THE DEALER OR MANUFACTURER POSSESSED. THE VEHICLE WAS NOT REPAIRED. THERE WAS NO DIAGNOSTIC CHECK OR INSPECTION PERFORMED ON THE VEHICLE. A DEALER WAS NOT CONTACTED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 34,366.

NHTSA complaint #11206504 — an unverified report by a vehicle owner.

Valley City, OH Crash

AIR BAGS

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ C300. WHILE THE CONTACT'S SON WAS DRIVING 40 MPH, ANOTHER VEHICLE CRASHED INTO THE FRONT END OF THE CONTACT'S VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THERE WERE NO INJURIES SUSTAINED. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A TOW LOT. THE CONTACT CALLED AN UNKNOWN DEALER TO NOTIFY THEM ABOUT THE AIR BAG FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS), BUT THE PART WAS NOT AVAILABLE FOR THE REPAIR. THE FAILURE MILEAGE WAS NOT PROVIDED. PARTS DISTRIBUTION DISCONNECT.

NHTSA complaint #11204428 — an unverified report by a vehicle owner.

at 45,785 miles Fort Wayne, IN Crash

VEHICLE SPEED CONTROL

I WAS STOPPED IN FRONT OF MY GARAGE (WAITING FOR THE DOOR TO GO UP). WHEN I LIGHTLY PRESSED ON THE GAS PEDAL TO PULL IN, THE ENGINE ROARED AND THE CAR SUDDENLY LEAPED FORWARD AT A VERY HIGH RATE OF SPEED, GOING THRU MY DETACHED GARAGE WALL. THE ACCELERATOR PEDAL STUCK AND I COULD NOT GET THE CAR TO STOP. I HAVE PULLED INTO THIS GARAGE THOUSANDS OF TIMES AND KNEW THIS WAS THE CAR. SLAMMING ON THE BRAKES COULD NOT STOP THE CAR BECAUSE IT WAS ACCELERATING TOO QUICKLY. HITTING THE BRICK FACADE OF THE CONDOMINIUM, BEYOND THE DETACHED GARAGE WAS THE ONLY THING THAT STOPPED THE CAR. NO AIRBAGS DEPLOYED, WHICH I THOUGHT THEY SHOULD HAVE BECAUSE OF THE IMPACT. EVEN THOUGH I ONLY TRAVELED APPROXIMATELY 30 FEET, THE CAR ACCELERATED SO QUICKLY, IT TOTALED THE CAR. THE CAR IS CURRENTLY UNDER RECALL AS OF NOVEMBER 2017, FOR A STEERING COLUMN ISSUE, WHICH INCLUDES IMPROPERLY GROUNDED COMPONENTS AND THE STEERING COLUMN CLOCK SPRING BEING BROKEN ISSUE RELATED TO THE AIRBAGS DEPLOYING WHILE DRIVING THE CAR. I HAVE TIRED SEVERAL TIMES TO HAVE THE CAR REPAIRED AND HAVE BEEN TOLD THE MERCEDES DEALERSHIP STILL DOES NOT HAVE THE PART. PER THE DEALERSHIP AND MERCEDES, I WAS ADVICED I WOULD RECEIVE A LETTER WHEN IT WAS AVAILABLE. I PURCHASED THE CAR USED AND HAVE SINCE FOUND OUT SINCE THIS IS THE THIRD RECALL ON THIS VEHICLE. I BELIEVE IT HAD TO BE SOMETHING WITH EITHER THE ACCELERATOR AUTOMATICALLY ENGAGING. IT WAS ALMOST LIKE THE CRUISE CONTROL QUICKED IN. SINCE IT IS UNDER RECALL FOR THE STEERING WHEEL RELATED ISSUE, I DON'T KNOW IF IT AFFECTED THE CRUISE CONTROL AND CAUSED THIS TO HAPPEN.

NHTSA complaint #11091327 — an unverified report by a vehicle owner.

at 45,785 miles Fort Wayne, IN Crash

STEERING

I WAS STOPPED IN FRONT OF MY GARAGE (WAITING FOR THE DOOR TO GO UP). WHEN I LIGHTLY PRESSED ON THE GAS PEDAL TO PULL IN, THE ENGINE ROARED AND THE CAR SUDDENLY LEAPED FORWARD AT A VERY HIGH RATE OF SPEED, GOING THRU MY DETACHED GARAGE WALL. THE ACCELERATOR PEDAL STUCK AND I COULD NOT GET THE CAR TO STOP. I HAVE PULLED INTO THIS GARAGE THOUSANDS OF TIMES AND KNEW THIS WAS THE CAR. SLAMMING ON THE BRAKES COULD NOT STOP THE CAR BECAUSE IT WAS ACCELERATING TOO QUICKLY. HITTING THE BRICK FACADE OF THE CONDOMINIUM, BEYOND THE DETACHED GARAGE WAS THE ONLY THING THAT STOPPED THE CAR. NO AIRBAGS DEPLOYED, WHICH I THOUGHT THEY SHOULD HAVE BECAUSE OF THE IMPACT. EVEN THOUGH I ONLY TRAVELED APPROXIMATELY 30 FEET, THE CAR ACCELERATED SO QUICKLY, IT TOTALED THE CAR. THE CAR IS CURRENTLY UNDER RECALL AS OF NOVEMBER 2017, FOR A STEERING COLUMN ISSUE, WHICH INCLUDES IMPROPERLY GROUNDED COMPONENTS AND THE STEERING COLUMN CLOCK SPRING BEING BROKEN ISSUE RELATED TO THE AIRBAGS DEPLOYING WHILE DRIVING THE CAR. I HAVE TIRED SEVERAL TIMES TO HAVE THE CAR REPAIRED AND HAVE BEEN TOLD THE MERCEDES DEALERSHIP STILL DOES NOT HAVE THE PART. PER THE DEALERSHIP AND MERCEDES, I WAS ADVICED I WOULD RECEIVE A LETTER WHEN IT WAS AVAILABLE. I PURCHASED THE CAR USED AND HAVE SINCE FOUND OUT SINCE THIS IS THE THIRD RECALL ON THIS VEHICLE. I BELIEVE IT HAD TO BE SOMETHING WITH EITHER THE ACCELERATOR AUTOMATICALLY ENGAGING. IT WAS ALMOST LIKE THE CRUISE CONTROL QUICKED IN. SINCE IT IS UNDER RECALL FOR THE STEERING WHEEL RELATED ISSUE, I DON'T KNOW IF IT AFFECTED THE CRUISE CONTROL AND CAUSED THIS TO HAPPEN.

NHTSA complaint #11091327 — an unverified report by a vehicle owner.

at 40,000 miles Babylon, NY Crash 1 injured

AIR BAGS

WHILE IN MOTION (DRIVING) ANOTHER DRIVER TURNED IN FRONT OF ME, CAUSING ME TO T-BONE HER (POLICE REPORT WITH DESCRIPTION ATTACHED). I SLAMMED ON BRAKES TO TO LESSEN THE UNAVOIDABLE IMPACT. I ESTIMATE MY SPEED AT 30-35 MPH. MY AIRBAGS FAILED TO DEPLOY. MY CAR WAS TOTALED, AS WAS THE OTHER DRIVER I HIT. I HAD 2 SPIRAL METACARPAL FRACTURES IN MY LEFT HAND FROM HITTING THE STEERING WHEEL THAT REQUIRED SURGICAL PLACEMENT OF TWO PLATES AND 12 SCREWS, AND MY KNEES HIT THE DASH BOARD, MY RIGHT HIP BRUISED FROM SEATBELT,I SPRAINED NECK AND BACK AND PARTIALLY TORN LEFT ROTATOR CUFF. ALL OF THE OTHER DRIVERS AIRBAGS DEPLOYED, AND SHE WALKED AWAY FROM THE ACCIDENT. NOT ONE OF MY AIRBAGS DEPLOYED.I WAS TAKEN TO THE EMERGENCY ROOM VIA AMBULANCE FROM THE SCENE. MY LEFT PANT LEG WAS CUT BY PARAMEDICS TO SEE MY KNEE THAT HAD OBVIOUS BRUISING AND SWELLING. I WAS DISCHARGED BEING TOLD I NEEDED TO FOLLOW UP WITH A HAND SURGEON TO HAVE MY BONES IN MY HAND REPAIRED AFTER X RAYS. I'VE BEEN OUT OF WORK SINCE THE ACCIDENT. I GO TO HAND THERAPY 3XS A WEEK AND PT AND CHIRO 2XS A WEEK. NOT SURE IF I NEED TO HAVE ADDITIONAL SURGERIES ON MY SHOULDER AND WRIST

NHTSA complaint #11062682 — an unverified report by a vehicle owner.

The most recent complaints

In the owners' own words, exactly as filed with NHTSA.

Beaverton, OR

STEERING

Experiencing a failed Electronic Steering Lock (ESL). Car won’t crank or start even after verifying battery health and key fob. Symptoms point to a failed ESL, left stranded

NHTSA complaint #11719778 — an unverified report by a vehicle owner.

Beaverton, OR

ELECTRICAL SYSTEM

Experiencing a failed Electronic Steering Lock (ESL). Car won’t crank or start even after verifying battery health and key fob. Symptoms point to a failed ESL, left stranded

NHTSA complaint #11719778 — an unverified report by a vehicle owner.

Swansea, IL

SEATS

Leaving my home from my driveway and driving about 15 feet I heard a loud pop from my backseat area and noticed my Headrest on drivers side deployed without any reason. The airbag right/left malfunction light showed on my dash saying service required. Mercedes benz Dealership said they never heard of this. The dealership Removed old headrest and replaced with a new one , reset malfunction light and a fuse. Price was enormous.

NHTSA complaint #11686738 — an unverified report by a vehicle owner.

Westfield, NJ

SUSPENSION

The left rear subframe separated from the main frame causing the car to pull to the left when braking. I had an episode where I was stopping for a traffic light and the car started fishtailing and I almost lost control of the car. Following this episode, I took the car to a mechanic who advised me that the car was unsafe to drive. My mechanic also told me that he has repaired a number of these vehicle with the same problem, and that Mercedes Benz has extended their warranty from 4 years 50,000 miles to 20 years unlimited mileage. They did the extension after someone filed a class action suit in Georgia about the problem. The vehicle is presently at a Mercedes dealer awaiting the new subframe.

NHTSA complaint #11640936 — an unverified report by a vehicle owner.

London, KY

STEERING

To Whom It May Concern, I am seeking assistance regarding my 2014 Mercedes-Benz C-300, VIN [XXX] . I repurchased this vehicle from the London Nissan Dealership on [XXX]. It currently has about 120,000 miles, and I have driven an additional 15,000 miles in the past two years. Less than three months after purchase, I took the car to a Mercedes-Benz dealership in Knoxville, TN, for repairs on May 16th. Now, my vehicle is at James Motor Company in Lexington, KY, where they diagnosed a faulty steering column that needs replacement at a cost of $1,630.00. I have already taken this car to the dealership twice for issues in under two years. The problems began when the vehicle wouldn’t start one morning; the steering column was locked despite a fully charged battery. This failure could have led to a serious accident, especially since I drive frequently for work and school. There were no warning signs prior to this incident. The dealership has confirmed the steering column issue and can provide inspection upon request. I also have a list of parts needed for the repair available. Given the nature of this malfunction, I believe it warrants a recall. Thank you for your attention to this serious matter. I look forward to your prompt response. Sincerely, [XXX] [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11637174 — an unverified report by a vehicle owner.

Lancaster, PA

STEERING

It's the ESL ELECTRIC STEERING LOCK THIS PART IS KNOWN TO BE DEFECTIVE AND IS POSTED ONLINE TO FIX AND ALSO BYPASS IT. I AM NOT A MECHANIC SO I AM TOLD PART ALONE IS $570 AT MERCEDES THEY HAVE TO PROGRAM IT. THIS PART IS KNOW TO BREAK AND ONLY THEY CAN REPROGRAM IT. THIS SHOULD BE A SAFTY ISSUE. THE CAR RTDOES NOT START BECAUSE OF IT AND IT LOCKS THE STEERING WHEEL IN PLACE. THE CODE FOR IT ON CAR IS A25464 code on car. This is a known problem and it makes the car undrivable. I don't have files but had car toed 2 times. I will have recept after it's fixed

NHTSA complaint #11624057 — an unverified report by a vehicle owner.

at 158,000 miles Buchanan, MI

STEERING

The contact owns a 2014 Mercedes-Benz C300. The contact stated that an unidentified recall was previously completed on the vehicle; however, the recall remedy failed to prevent the failure from occurring. The contact stated that while driving at undisclosed speeds, the steering wheel locked. No warning light was illuminated. The vehicle was towed to a local dealer, where it was diagnosed and determined that the electronic steering lock and the TRP needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 158,000.

NHTSA complaint #11623763 — an unverified report by a vehicle owner.

at 158,000 miles Buchanan, MI

ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:CONTROL MODULE

The contact owns a 2014 Mercedes-Benz C300. The contact stated that an unidentified recall was previously completed on the vehicle; however, the recall remedy failed to prevent the failure from occurring. The contact stated that while driving at undisclosed speeds, the steering wheel locked. No warning light was illuminated. The vehicle was towed to a local dealer, where it was diagnosed and determined that the electronic steering lock and the TRP needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 158,000.

NHTSA complaint #11623763 — an unverified report by a vehicle owner.

Waretown, NJ

SUSPENSION

Rotted rear sub frame due to poor design retaining water

NHTSA complaint #11611165 — an unverified report by a vehicle owner.

Medway, MA

AIR BAGS

I purchased my vehicle from the Mercedes Benz Dealership and received a recall letter in the mail stating that driver side deployment may occur. After receiving notice I brought the car to the dealership to get the recall repaired. I've been driving around with a false sense of security believing that this issue was repaired. However, recently, while I was driving the driver side airbag unexpectedly and abruptly deployed and injured me. This is a major safety concern and car owners should be notified and made aware that the issue can still occur after the recall was repaired. I contacted Mercedes Benz and they did not issue any additional notices to inform customers of possible recall issue reoccurring due to manufacturer defects even after the repair was made. Additionally, I believe the driver side Takata airbag/inflators may have also been defective because of the injuries I incurred from the forceful explosive eruption of the airbag. MBUSA Campaign Number 2017120024 NHTSA Recall Number 17V627 Recall Start Date January 18, 2018 Recall Reported Date October 16, 2017 Component(s) 1709P46C62 Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY12-17 C-Class, E-Class, E-Class Coupe vehicles (204, 207, 212 platform) have insufficient electrical grounding in the steering column components. In rare instances, if the steering column module is exposed to an electrostatic discharge, and if the steering column module clock spring is broken (due to wear), this could lead to an inadvertent deployment of the driver airbag. An inadvertent driver airbag deployment may cause a risk of injury to the driver and might increase the risk of a potential crash. A broken clock spring will illuminate the SRS warning light as well as display a warning message in the instrument cluster. An authorized Mercedes-Benz Dealer will install a sufficient ground to the steering column, and a protective ring to the steering column module.

NHTSA complaint #11609790 — an unverified report by a vehicle owner.

Medway, MA

STEERING

I purchased my vehicle from the Mercedes Benz Dealership and received a recall letter in the mail stating that driver side deployment may occur. After receiving notice I brought the car to the dealership to get the recall repaired. I've been driving around with a false sense of security believing that this issue was repaired. However, recently, while I was driving the driver side airbag unexpectedly and abruptly deployed and injured me. This is a major safety concern and car owners should be notified and made aware that the issue can still occur after the recall was repaired. I contacted Mercedes Benz and they did not issue any additional notices to inform customers of possible recall issue reoccurring due to manufacturer defects even after the repair was made. Additionally, I believe the driver side Takata airbag/inflators may have also been defective because of the injuries I incurred from the forceful explosive eruption of the airbag. MBUSA Campaign Number 2017120024 NHTSA Recall Number 17V627 Recall Start Date January 18, 2018 Recall Reported Date October 16, 2017 Component(s) 1709P46C62 Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY12-17 C-Class, E-Class, E-Class Coupe vehicles (204, 207, 212 platform) have insufficient electrical grounding in the steering column components. In rare instances, if the steering column module is exposed to an electrostatic discharge, and if the steering column module clock spring is broken (due to wear), this could lead to an inadvertent deployment of the driver airbag. An inadvertent driver airbag deployment may cause a risk of injury to the driver and might increase the risk of a potential crash. A broken clock spring will illuminate the SRS warning light as well as display a warning message in the instrument cluster. An authorized Mercedes-Benz Dealer will install a sufficient ground to the steering column, and a protective ring to the steering column module.

NHTSA complaint #11609790 — an unverified report by a vehicle owner.

Medway, MA

STRUCTURE:BODY

I purchased my vehicle from the Mercedes Benz Dealership and received a recall letter in the mail stating that driver side deployment may occur. After receiving notice I brought the car to the dealership to get the recall repaired. I've been driving around with a false sense of security believing that this issue was repaired. However, recently, while I was driving the driver side airbag unexpectedly and abruptly deployed and injured me. This is a major safety concern and car owners should be notified and made aware that the issue can still occur after the recall was repaired. I contacted Mercedes Benz and they did not issue any additional notices to inform customers of possible recall issue reoccurring due to manufacturer defects even after the repair was made. Additionally, I believe the driver side Takata airbag/inflators may have also been defective because of the injuries I incurred from the forceful explosive eruption of the airbag. MBUSA Campaign Number 2017120024 NHTSA Recall Number 17V627 Recall Start Date January 18, 2018 Recall Reported Date October 16, 2017 Component(s) 1709P46C62 Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that certain MY12-17 C-Class, E-Class, E-Class Coupe vehicles (204, 207, 212 platform) have insufficient electrical grounding in the steering column components. In rare instances, if the steering column module is exposed to an electrostatic discharge, and if the steering column module clock spring is broken (due to wear), this could lead to an inadvertent deployment of the driver airbag. An inadvertent driver airbag deployment may cause a risk of injury to the driver and might increase the risk of a potential crash. A broken clock spring will illuminate the SRS warning light as well as display a warning message in the instrument cluster. An authorized Mercedes-Benz Dealer will install a sufficient ground to the steering column, and a protective ring to the steering column module.

NHTSA complaint #11609790 — an unverified report by a vehicle owner.

Medway, MA

AIR BAGS

While I was driving my car the driver side airbag abruptly deployed. The airbag inadvertently deployed; the car did not crash into anything to cause the airbag to deploy. When the airbag erupted it caused injury to my head, face, hand, arm and wrist. I believe the airbag is defective because I have lacerations on my face possibly due to sharp objects ejecting from the airbag and the impact as well as excessive smoke and fumes emitted after the fact. I believe there might be a manufacturing defect in the airbag because it seemed as if it exploded with excessive force causing harm to myself as well as inadvertent eruption. There have been some recalls issued on the motor vehicle and I did take the vehicle to the Mercedes car dealership to get all of the recalls repaired, however this incident occurred after the repairs were made at the dealership.

NHTSA complaint #11598400 — an unverified report by a vehicle owner.

Medway, MA

STEERING

While I was driving my car the driver side airbag abruptly deployed. The airbag inadvertently deployed; the car did not crash into anything to cause the airbag to deploy. When the airbag erupted it caused injury to my head, face, hand, arm and wrist. I believe the airbag is defective because I have lacerations on my face possibly due to sharp objects ejecting from the airbag and the impact as well as excessive smoke and fumes emitted after the fact. I believe there might be a manufacturing defect in the airbag because it seemed as if it exploded with excessive force causing harm to myself as well as inadvertent eruption. There have been some recalls issued on the motor vehicle and I did take the vehicle to the Mercedes car dealership to get all of the recalls repaired, however this incident occurred after the repairs were made at the dealership.

NHTSA complaint #11598400 — an unverified report by a vehicle owner.

Medway, MA

ELECTRICAL SYSTEM

While I was driving my car the driver side airbag abruptly deployed. The airbag inadvertently deployed; the car did not crash into anything to cause the airbag to deploy. When the airbag erupted it caused injury to my head, face, hand, arm and wrist. I believe the airbag is defective because I have lacerations on my face possibly due to sharp objects ejecting from the airbag and the impact as well as excessive smoke and fumes emitted after the fact. I believe there might be a manufacturing defect in the airbag because it seemed as if it exploded with excessive force causing harm to myself as well as inadvertent eruption. There have been some recalls issued on the motor vehicle and I did take the vehicle to the Mercedes car dealership to get all of the recalls repaired, however this incident occurred after the repairs were made at the dealership.

NHTSA complaint #11598400 — an unverified report by a vehicle owner.

Arlington, VA

STRUCTURE:BODY:DOOR:HANDLE:INTERIOR

The driver's side interior door handle became disengaged as I was trying to open the door so I was momentarily trapped inside. If I had been in a situation where I had been in an accident and needed to get out quickly, or the car had been on fire, or I was stalled on the train tracks, this could have been a serious incident. When I googled this, it sounds like this is a very common occurrence in Mercedes. There was no warning that this was going to occur - everything seemed secure before this happened. I have taken it to a service center for a very expensive repair as they have to remove the door panel, replace/reattach the part and put the door panel back.

NHTSA complaint #11597583 — an unverified report by a vehicle owner.

Waynesville, OH

SUSPENSION

took car in for oil change and was informed that car should not be driven because rear subframe had rotted thru and rear link was completly unattached and hitting gas tank. havent had a response from 2 dealerships this car is unstable and hitting the brakes requires a lot of attention to keep on road

NHTSA complaint #11595236 — an unverified report by a vehicle owner.

Fort Wayne, IN

SUSPENSION

Rear sub frame rusting through

NHTSA complaint #11578327 — an unverified report by a vehicle owner.

Pataskala, OH

ENGINE

The intake manifold blew on my car while it was off overnight and I took it to the Mercedes dealership to have it fix and the next day I got it back after it was repaired the same problem happened again when I went to unlock my car I heard a bang and smoke coming from the engine

NHTSA complaint #11575862 — an unverified report by a vehicle owner.

Pataskala, OH

FUEL/PROPULSION SYSTEM

The intake manifold blew on my car while it was off overnight and I took it to the Mercedes dealership to have it fix and the next day I got it back after it was repaired the same problem happened again when I went to unlock my car I heard a bang and smoke coming from the engine

NHTSA complaint #11575862 — an unverified report by a vehicle owner.

Conyers, GA

ELECTRICAL SYSTEM

The ignition switch is causing the steering column to lock and it has been reported a lot at different dealerships that I have called.

NHTSA complaint #11560740 — an unverified report by a vehicle owner.

Gaithersburg, MD

STRUCTURE:BODY

The driver's side door handle broke impossible to open door from inside if there was an accident. I have been told that this is a common problem with my car, and that it cost 1600.00 to replace repair at the dealer. This is such a common problem that there are after market kits to repair the broken handle for 20.00, but including labor the repair is $500.00.

NHTSA complaint #11551878 — an unverified report by a vehicle owner.

Gaithersburg, MD

STRUCTURE:BODY:DOOR:HANDLE:INTERIOR

The driver's side door handle broke impossible to open door from inside if there was an accident. I have been told that this is a common problem with my car, and that it cost 1600.00 to replace repair at the dealer. This is such a common problem that there are after market kits to repair the broken handle for 20.00, but including labor the repair is $500.00.

NHTSA complaint #11551878 — an unverified report by a vehicle owner.

Palm BAY, FL

STEERING

Car would just shut down intermittently, sometimes sudden death. No crank no start. Been stranded at night alone with my child in the car and at times, unsafe areas. Electronic Ignition Switch is faulty and MB has had my car for 1 month to date. Quoted me a repair cost of $2,787. Said the EIS is on back order with no ETA, and they currently have 5 others with exact problem, ignition switch. So many people have reported this problem for years with the C300. I'm a single mom, it's been a nightmare.

NHTSA complaint #11506479 — an unverified report by a vehicle owner.

Belle Mead, NJ

SUSPENSION

Rear left sub frame is found to be broken due to corrosion and rust. Right side is near to be broken. Driving under such condition is very dangerous.

NHTSA complaint #11505729 — an unverified report by a vehicle owner.