YearToAvoid

2015 Mercedes-Benz C350 Problems, Recalls & Reliability

Verdict

Good

Complaint Index

29/100

#6 most-complained of 8 C350 years

Based on NHTSA complaints per model-year, not a reliability rating. Methodology

The 2015 Mercedes-Benz C350 has a Complaint Index of 29 and ranks 6th worst out of 8 model years, earning a "Good" verdict relative to other C350 years. NHTSA lists 6 complaints and 4 recalls, with airbags as the top problem area.

Complaints
6
Recalls
4
Crashes / fires
0 / 0
Injuries / deaths
0 / 0
NHTSA overall rating
Not rated
EPA combined MPG
22.5
19.5 city / 27.5 hwy

Top 2015 Mercedes-Benz C350 problems

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

  1. Airbags3 (50%)
  2. Engine2 (33%)
  3. Fuel System1 (17%)
  4. Other1 (17%)
  5. Transmission & Powertrain1 (17%)

What owners report

  • Some drivers reported sudden loss of throttle response while driving, with a dash warning reading "inoperative see operator's manual," forcing them to coast to safety.
  • In a similar case, the accelerator pedal was pressed but the vehicle failed to accelerate at 65 mph while multiple warning indicators lit up; restarting the car temporarily fixed it.
  • Several owners who received airbag recall notices (campaigns 17V627000 and 19V010000) reported that dealers had no replacement parts available to complete the repair.
  • Owners described extended waits for the Takata-related airbag recall remedy, with dealers unable to confirm a repair timeline.
  • Engine-related stalling issues were reported at a median mileage of 17,250 miles.
2015 Mercedes-Benz C350 complaints: complaints filed per month3Jan 2017Feb 2018Jun 2018Apr 2019Jun 2020Feb 2024
8 complaints filed with NHTSA from Jan 2017 to Feb 2024; peak Jan 2017 (3).

2015 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 2015 Mercedes-Benz C350 →

2015 Mercedes-Benz C350 fuel economy and fuel cost

City
19.5 MPG
Highway
27.5 MPG
Combined
22.5 MPG
Annual fuel cost (EPA)
$3,550
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.

2015 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
2013Good4321623
2014Caution5713423
2015Good296422.5
2017No verdict010—
2020No verdict1410—

All Mercedes-Benz C350 years: best and worst →

Frequently asked questions

Is the 2015 Mercedes-Benz C350 reliable?
NHTSA data shows a Complaint Index of 29 for the 2015 C350, ranking it 6th worst of 8 model years, which earns it a "Good" verdict compared to other C350 years.
What problems does the 2015 C350 have?
NHTSA lists 6 complaints for the 2015 C350, with airbags making up 50% of complaints and engine issues 33%. Reported engine problems included loss of throttle response near a median mileage of 17,250.
Does the 2015 C350 have any recalls?
Yes, NHTSA lists 4 recalls for the 2015 C350, covering airbag modules, steering grounding, and an eCall software time-sync fault. None are do-not-drive recalls.
How does the 2015 C350 compare to other years?
With a Complaint Index of 29, the 2015 C350 has fewer reported problems than the 2010 (100), 2012 (86), and 2011 (71) model years, which carry Avoid or Caution verdicts.
What is the fuel economy of the 2015 C350?
The EPA rates the 2015 C350 at 22.5 mpg combined (19.5 city / 27.5 highway), with an annual fuel cost of $3,550.

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.