YearToAvoid

2014 Mercedes-Benz C350 Problems, Recalls & Reliability

Verdict

Caution

Complaint Index

57/100

#4 most-complained of 8 C350 years

The 2014 Mercedes-Benz C350 has a Complaint Index of 57 and ranks 4th worst of 8 model years, earning a Caution verdict. Airbags account for 62% of complaints, with 4 recalls including two separate Takata airbag campaigns.

Complaints
13
Recalls
4
Crashes / fires
1 / 0
Injuries / deaths
1 / 0
NHTSA overall rating
Not rated
EPA combined MPG
23
20 city / 28 hwy

Top 2014 Mercedes-Benz C350 problems

NHTSA owner complaints by component group. Groups with 15+ complaints have their own page.

  1. Airbags8 (62%)
  2. Structure & Body2 (15%)
  3. Brakes1 (8%)
  4. Electrical System1 (8%)
  5. Engine1 (8%)
  6. Steering1 (8%)
  7. Transmission & Powertrain1 (8%)

What owners report

  • Owners report Takata airbag recall parts being unavailable for extended periods, leaving vehicles unrepaired.
  • A steering wheel spring grounding defect could cause the airbag to deploy accidentally, tied to a recall issued in 2017.
  • One owner reported the cruise control malfunctioned and caused a multi-vehicle collision.
  • An owner reported the transmission shifting erratically with hard, shuddering shifts.
  • An owner reported the front driver's side interior door latch detaching while the vehicle was parked, at 60,000 miles.
2014 Mercedes-Benz C350 complaints: complaints filed per month3Nov 2017Mar 2018Sep 2019Jul 2020Sep 2023Aug 2025
15 complaints filed with NHTSA from Nov 2017 to Jan 2026; peak Dec 2017 (3).

2014 Mercedes-Benz C350 recalls

4 NHTSA recall campaigns list this model year.

  1. NHTSA 21V638000Aug 13, 2021Airbags205 vehicles

    Air bags:frontal

    Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2015-2016 E400 Coupe, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2011-2014 E350 Coupe, and 2012-2014 E350 Cabrio vehicles. An incorrect front passenger air bag may have been installed during a prior repair.

    Risk: An incorrect air bag may not function properly in a crash, increasing the risk of injury.

    Remedy: Dealers will replace the front passenger air bag on the affected vehicles, free of charge. Owner notification letters were mailed on September 10, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.

  2. NHTSA 19V787000Nov 1, 2019Other24,226 vehiclesOver-the-air fix

    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.

    Remedy: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.

  3. NHTSA 19V010000Jan 9, 2019Airbags288,779 vehicles

    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 AMG Coupe, 2010-2011 C300, 2010-2014 C300 4Matic, C350, C63 AMG, E350 Coupe, 2011-2014 E350 Cabrio, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2016-2017 E550 Cabrio, 2010-2016 E550 Coupe, 2010-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MO, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI and WY or "Zone C." These vehicles are equipped with air bag inflators assembled as part of the passenger frontal air bag modules that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

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

    Remedy: MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. The recall began March 29, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.

See all 4 recalls for the 2014 Mercedes-Benz C350 →

2014 Mercedes-Benz C350 fuel economy and fuel cost

City
20 MPG
Highway
28 MPG
Combined
23 MPG
Annual fuel cost (EPA)
$3,450
15,000 mi/yr
Fuel
Premium
Current regular gas
$4.32/gal
national avg.

EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.

2014 compared with other C350 years

Complaint Index by model year (0 = fewest issues, 100 = most)025507510020102011201220132014201520172020
Complaint Index: 0 = fewest issues, 100 = most, relative to other years of this model. Avoid Caution Good Best
YearVerdictIndexComplaintsRecallsMPG
2012Avoid8635522
2013Good4321623
2014Caution5713423
2015Good296422.5
2017No verdict010—

All Mercedes-Benz C350 years: best and worst →

Frequently asked questions

Is the 2014 Mercedes-Benz C350 reliable?
NHTSA data gives the 2014 C350 a Complaint Index of 57 and a Caution verdict, ranking 4th worst among 8 model years of the C350. Airbags are the dominant problem area, making up 62% of complaints.
What are the most common problems with the 2014 Mercedes-Benz C350?
Airbags lead with 62% of complaints, followed by Structure & Body issues at 15%. Brakes, Electrical, Engine, Steering, and Transmission each account for a smaller share of reports.
Does the 2014 Mercedes-Benz C350 have an airbag recall?
Yes. NHTSA lists two separate Takata airbag recalls for the 2014 C350 (campaigns 19V010000 and 21V638000) plus a steering-related grounding recall (17V627000) that could cause accidental airbag deployment.
How does the 2014 C350 compare to other C350 years?
The 2014 model's Complaint Index of 57 is worse than the 2013 (43) and 2015 (29) model years, both rated Good, but better than the 2010 (100) and 2012 (86) years, which are rated Avoid.
What mileage do 2014 C350 airbag problems show up at?
NHTSA data lists a median mileage of 60,000 for airbag-related complaints on the 2014 C350.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.