2012 Mercedes-Benz C300 Problems

Below Average Complaints

Real NHTSA owner complaints for the 2012 Mercedes-Benz C300.

20112013
Complaints
331
Crashes
6
Fires
8
Injuries
7
Fatalities
1
Recalls
6

Worst 2012 Mercedes-Benz C300 Problems

Top 3 most-reported issues with average mileage at failure.

#1113 complaints

Airbags

Avg mileage:38,214 mi
Crash-related:3
#263 complaints

Suspension Failures

Avg mileage:121,434 mi
#330 complaints

Body Structure

Avg mileage:109,303 mi
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All Problems by Category

Every NHTSA complaint category for the 2012 Mercedes-Benz C300.

Airbags
113
complaints
Crashes
3
Fires
Avg Miles
38,214
Suspension Failures
63
complaints
Crashes
Fires
Avg Miles
121,434
Body Structure
30
complaints
Crashes
Fires
Avg Miles
109,303
Structure:Frame And Members
16
complaints
Crashes
Fires
Avg Miles
93,697
Electrical Faults
12
complaints
Crashes
Fires
2
Avg Miles
91,448
Brakes
12
complaints
Crashes
1
Fires
1
Avg Miles
66,133
Steering Defects
8
complaints
Crashes
Fires
Avg Miles
95,564
Fuel System
7
complaints
Crashes
Fires
1
Avg Miles
68,500
Engine Problems
5
complaints
Crashes
Fires
2
Avg Miles
59,120
Transmission / Drivetrain
5
complaints
Crashes
Fires
Avg Miles
92,000
Structural Problems
5
complaints
Crashes
Fires
Avg Miles
96,320
Headlight/Taillight Failures
4
complaints
Crashes
Fires
1
Avg Miles
Suspension:Subframe/Mounting Bracket
4
complaints
Crashes
Fires
Avg Miles
Wheel Issues
4
complaints
Crashes
Fires
1
Avg Miles
Gasoline Fuel System
3
complaints
Crashes
Fires
Avg Miles
Service Brakes, Hydraulic:Foundation Components:Hoses, Lines/Piping, And Fittings
2
complaints
Crashes
Fires
Avg Miles
Structure:Frame And Members:Underbody Shields
2
complaints
Crashes
Fires
Avg Miles
Wipers & Visibility
2
complaints
Crashes
Fires
Avg Miles
Air Bags:Frontal
1
complaints
Crashes
Fires
Avg Miles
Air Bags:Frontal:Passenger Side:Inflator Module
1
complaints
Crashes
Fires
Avg Miles
Electronic Stability Control
1
complaints
Crashes
Fires
Avg Miles
Diesel Fuel System
1
complaints
Crashes
Fires
Avg Miles
Seat Belt Issues
1
complaints
Crashes
1
Fires
Avg Miles
Hydraulic Brakes
1
complaints
Crashes
Fires
Avg Miles
Structure:Body:Door:Handle:Interior
1
complaints
Crashes
Fires
Avg Miles
Suspension:Rear
1
complaints
Crashes
Fires
Avg Miles
Tire Defects
1
complaints
Crashes
Fires
Avg Miles
Unintended Acceleration
1
complaints
Crashes
1
Fires
Avg Miles
Sunroof/Moonroof
1
complaints
Crashes
Fires
Avg Miles

Search Owner Complaints

Read what owners actually reported to NHTSA for the 2012 Mercedes-Benz C300. Type a keyword (e.g. “transmission”, “stalling”, “brakes”) to filter.

Recalls for 2012 Mercedes-Benz C300

6 NHTSA recall campaigns affecting ~894,679 vehicles.

20V298000Air Bags:frontal:passenger Side:inflator Module
~640 affected

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2012 C250, C250 Coupe, C300, C350, C350 Coupe, C63 AMG, and C63 AMG Coupe vehicles equipped with a front passenger air bag assembly replaced under a prior recall. An incorrect replacement front passenger air bag may have been installed.

19V010000Air Bags:frontal:passenger Side:inflator Module
~288,779 affected

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.

17V627000Air Bags:frontal
~495,290 affected

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 if an electrostatic discharge occurs and the air bag clockspring is broken.

17V177000Electrical System:software · Air Bags:frontal:sensor/control Module-inactive
~51 affected

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.

17V017000Air Bags:frontal:passenger Side:inflator Module
~104,119 affected

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2012 C300 4Matic, C250, C250 Coupe, C350, C350 Coupe 4Matic, C350 Coupe, C63 AMG, C63 AMG Coupe, E350 Coupe 4Matic, E350 Cabrio, E350 Coupe, E550 Cabrio, E550 Coupe, GLK350 4Matic, GLK350, SLS AMG Cabrio, and SLS AMG Coupe vehicles originally sold, or ever registered, in Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above MBUSA is recalling certain 2009 C300 4Matic, C300, C350 and C63 AMG vehicles originally sold, or ever registered, in Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Additionally, unless included in "Zone A" or "Zone B" above MBUSA is recalling certain 2008 C300 4Matic, C300, and C350 vehicles originally sold, or ever registered, in Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

12V557000Gasoline Fuel System
~5,800 affected

Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and CL63 AMG vehicles manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures.

Other Mercedes-Benz C300 Years

2012 Mercedes-Benz C300 — FAQ

Answers based on real NHTSA complaint and recall data for this specific model year.

Is the 2012 Mercedes-Benz C300 reliable?
Verdict: Below Average Complaints. The 2012 Mercedes-Benz C300 has 331 NHTSA complaints, 6 crash-related, and 6 recall campaigns. The most common issue is Airbags with 113 complaints. Source: NHTSA via VinItel.
What are common problems with the 2012 Mercedes-Benz C300?
Top reported problems: Airbags (113 complaints, avg 38,214 mi); Suspension Failures (63 complaints, avg 121,434 mi); Body Structure (30 complaints, avg 109,303 mi). Every complaint is filed by an owner with NHTSA — this is raw reported data, not editorial opinion.
At what mileage do problems start on the 2012 Mercedes-Benz C300?
The weighted average mileage at time of complaint is about 76,518 miles. Some components fail earlier, some later — check the "All Problems by Category" table above for per-issue averages.
How safe is the 2012 Mercedes-Benz C300?
NHTSA complaints for the 2012 Mercedes-Benz C300 include 6 crash-related reports, 8 fire reports, 7 injuries, and 1 fatalities. These are owner-reported incidents, not official crash-test ratings — a complaint being filed doesn't confirm a defect, but clusters around specific components are worth investigating.
Does the 2012 Mercedes-Benz C300 have any recalls?
Yes — 6 NHTSA recall campaigns affecting an estimated 894,679 vehicles. Recalls are free to fix at the dealer. Always verify by VIN whether the specific car you're looking at has had its recalls addressed.
Should I buy a 2012 Mercedes-Benz C300?
Fewer complaints than typical for this model. That's a good sign, but every individual car is different — the VIN still tells you what happened to this specific one.

Source: NHTSA (National Highway Traffic Safety Administration) complaint and recall databases, aggregated by VinItel.

Wider context: See the full Mercedes-Benz C300 reliability report with year-by-year comparison and generation analysis.

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