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U.S. public vehicle records

2014 Mercedes-Benz C300 problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

94 owner complaints analyzed

5 distinct recall campaigns

27,000 mi median reported failure mileage

Scope: 2014 model year. Data snapshot: . 21 complaints include usable failure mileage.

Owner-reported patterns

Most common problems

Air Bags is the most frequently named component, appearing in 52 of 94 complaints (55.3%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Steering behavior1414.9%
Braking behavior99.6%
Electrical and battery issues66.4%
Fuel system concerns33.2%
Transmission and shifting22.1%
Engine operation11.1%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Air Bags
52
Steering
13
Suspension
11
Electrical System
8
Unknown Or Other
8
Structure:Body
7
Vehicle Speed Control
3
Engine
2
Component breakdown data
CategoryCount
Air Bags52
Steering13
Suspension11
Electrical System8
Unknown Or Other8
Structure:Body7
Vehicle Speed Control3
Engine2

Air Bags: 52; Steering: 13; Suspension: 11; Electrical System: 8; Unknown Or Other: 8; Structure:Body: 7; Vehicle Speed Control: 3; Engine: 2

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
9
25,000 to 49,999
8
50,000 to 74,999
3
75,000 to 99,999
0
100,000 to 149,999
0
150,000 and above
1
Reported problems by failure mileage data
CategoryCount
Under 25,0009
25,000 to 49,9998
50,000 to 74,9993
75,000 to 99,9990
100,000 to 149,9990
150,000 and above1

Under 25,000: 9; 25,000 to 49,999: 8; 50,000 to 74,999: 3; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 1

Under 25,000 miles has the most reports with usable mileage (9). 73 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2014
3
2015
1
2016
2
2017
6
2018
14
2019
25
2020
11
2021
2
2022
9
2023
8
2024
9
2025
3
2026
1
Complaints over time data
CategoryCount
20143
20151
20162
20176
201814
201925
202011
20212
20229
20238
20249
20253
20261

2014: 3; 2015: 1; 2016: 2; 2017: 6; 2018: 14; 2019: 25; 2020: 11; 2021: 2; 2022: 9; 2023: 8; 2024: 9; 2025: 3; 2026: 1

Pattern summary

Air Bags leads the component reports. Steering behavior appears in 14 complaint narratives. Braking behavior appears in 9 complaint narratives. Electrical and battery issues appears in 6 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11061274 · 2018-01-08 (January 8, 2018)

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V627000 (STEERING). THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR AS THE RECALL NOTICE WAS RECEIVED OVER A MONTH AGO. THE DEALER (RAY CATENA OF UNION, 2585 US-22, UNION, NJ 07083, [phone removed]) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS CONTACTED SEVERAL TIMES AND WAS UNABLE…

Owner-reported narrative. 27,000 miles reported. Look up ODI 11061274 at NHTSA ↗

Owner report 11062682 · 2018-01-14 (January 14, 2018)

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 AN…

Owner-reported narrative. 40,000 miles reported. Look up ODI 11062682 at NHTSA ↗

Owner report 10713334 · 2015-04-28 (April 28, 2015)

TL* THE CONTACT OWNS A 2014 MERCEDES BENZ C300. WHEN THE IGNITION WAS TURNED TO THE ON POSITION AND THE VEHICLE WAS SHIFTED INTO DRIVE WITH THE BRAKE PEDAL DEPRESSED, THE VEHICLE ACCELERATED WITHOUT WARNING. THE VEHICLE CRASHED INTO A TRAFFIC LIGHT POLE. THE CONTACT SUFFERED LACERATIONS TO THE HEAD, MUSCLE DAMAGE TO THE LEGS, AND A FRACTURE ON THE EYE SOCKET. THE CONTACT RECEIVED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO THE CONTACT'S INSURANCE COMPANY. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE…

Owner-reported narrative. 11,000 miles reported. Look up ODI 10713334 at NHTSA ↗

Owner report 11161710 · 2018-12-15 (December 15, 2018)

I RECIEVED A RECALL ON MY VEHICLE FOR ELECTRICAL GROUNDING AND INADVERTANT AIRBAG DEPLOYMENT. HOWEVER DESPITE MULTIPLE CALLS TO THE LOCAL MERCEDES BENZ SERVICE CENTER FOR THE LAST PAST ONE MONTH, I WAS TOLD THE "PART" WAS NOT AVAILABLE AND THAT THEY WERE WAITING FOR IT FROM THE COMPANY. I FEEL ONE MONTH IS QUITE A LONG TIME TO GET A"PART" WHICH IS O A RECAL SAFETY ISSUE. I WONDER IF YOU COULD PLEASE DO THE NEEDFUL

Owner-reported narrative. Look up ODI 11161710 at NHTSA ↗

Owner report 11190343 · 2019-03-20 (March 20, 2019)

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V10000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF GOLDEN BRIDGE (321 NY-22, GOLDEN BRIDGE, NY 10526, [phone removed]) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE VEHICLE ALSO HAD ELECTRICAL FAIL…

Owner-reported narrative. Look up ODI 11190343 at NHTSA ↗

Owner report 11450424 · 2022-02-04 (February 4, 2022)

This car has 63,792 miles on it and has been continuously garaged and well cared for. All maintenance has been done timely and by Mercedes-Benz of Tysons Corner (Virginia) since it was purchased there on 01/08/14. All required maintenance was completed as advised and the car was covered under a 7 year 75,000 mile warranty. At the recent regularly scheduled yearly maintenance service completed on 12/28/21 we were advised that the that the "rear sub-frame is beginning to rust through and has a hole on the right rear (RR) and the recommendatio…

Owner-reported narrative. Look up ODI 11450424 at NHTSA ↗

Owner report 11501740 · 2023-01-14 (January 14, 2023)

Car has approximately 60,000. miles. Upon it's state inspection Mercedes Benz service center indicated rear subframe is rusted. Service advisory says it is okay now, but will need to be replaced. Searching Mercedes forums, I've noted this is a n oft reported issue. Many do not realize there is an issue until it breaks and car pulls to one side at rear upon braking. Others have experienced rusted brake lines at the same area as the subframe issue. Others have noted damage to the gas tank from suspension parts banging the fuel tank after it b…

Owner-reported narrative. Look up ODI 11501740 at NHTSA ↗

Owner report 11466656 · 2022-05-30 (May 30, 2022)

Parked the car, did something, came back and car did not start. Key in, no crank, no start, no steering. No lights on the dash, no gear shifting, can’t roll the windows up. All out of nowhere. Think it’s a problem with the Electronic Steering Lock.

Owner-reported narrative. Look up ODI 11466656 at NHTSA ↗

Owner report 11597583 · 2024-06-28 (June 28, 2024)

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 fo…

Owner-reported narrative. Look up ODI 11597583 at NHTSA ↗