When it was redesigned for 2015, the Mercedes-Benz C300 scored near the top of the sports sedan segment. This iteration of the C-Class has a beautiful interior and delivers a driving experience that is close to ideal when it comes to balancing performance and comfort. Simply put, the C300 delivers the driving pleasure people expect from the brand.
Alerts
There are 11 recalls on this vehicle. Learn More.

Road Test Results

Performance
Acceleration Acceleration Acceleration tests are conducted on a smooth, flat pavement straightaway at the track. Time, speed, and distance measurements are taken with a precise GPS-based device that’s hooked to a data-logging computer.
0 to 60 mph 0 to 60 mph (sec.) The time in seconds that a vehicle takes to reach 60 mph from a standstill with the engine idling.
Transmission Transmission Transmission performance is determined by shifting smoothness, response, shifter action, and clutch actuation for manual transmissions.
Fuel Economy Fuel Economy We perform our own fuel-economy tests, independent of the government's often-quoted EPA figures and the manufacturers' claims. Using a precise fuel-flow measuring device spliced into the fuel line, we run two separate circuits to represent city and highway consumption.
CR's Overall Mileage CR's Overall Mileage CR's overall mileage is a composite of measured fuel usage on a prescribed city course and highway cruising; and CR's 150-mile test trip of mixed driving, if tested. In recent road tests, we've discontinued the 150-mile trip test.
CR's City Mileage CR's City Mileage Measured fuel usage on a prescribed city course.
CR's Highway Mileage CR's Highway Mileage Measured fuel usage on a prescribed highway cruising.
Annual Fuel Cost Annual Fuel Cost The cost and amount of fuel used in 12,000 miles and is calculated from CR's overall mileage.
Braking Braking The braking rating is a composite of wet and dry stopping distances and pedal feel. Braking distance is from 60 mph, with no wheels locked.
Emergency Handling Emergency Handling Several factors go into the rating, including the avoidance maneuver speed and confidence, as well as how the vehicle behaves when pushed to its limit,
Comfort / Convenience
Ride Ride Our expert judgment of how well the suspension isolates and absorbs road imperfections and how steady it keeps the body on various road surfaces.
Noise Noise Our expert judgment of the vehicle's interior noise level in everyday driving.
Front Seat Comfort Front Seat Comfort Our judgment of how comfortable the front seat is for drivers of various heights.
Rear Seat Comfort Rear Seat Comfort Our judgment of how comfortable the rear seat is for two passengers to sit across.
Interior Fit and Finish Interior Fit and Finish An expert evaluation of the interior quality and craftsmanship.
Trunk/Cargo Area Trunk/Cargo Area Our rating is based on the amount of luggage or cargo space that a vehicle has in the trunk or cargo area.

Owner Reports

Worse Better
Reliability History Reliability History The reliability charts are based on responses on hundreds of thousands of vehicles from our latest Annual Auto Survey. Consumer Reports subscribers reported on any serious problems they had with their vehicles during the past 12 months that they considered serious because of cost, failure, safety, or downtime, in any of the trouble spots included in the table below. The results are presented relative to the average model that year. Extra weight is given to the more serious areas such as major engine or transmission problems. Based on this data and further analysis, we predict reliability for the latest year. N/A indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.
2000
NA
2001
NA
2002
NA
2003
NA
2004
NA
2005
NA
2006
NA
2007
NA
2008
2009
NA
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
Reliability Trouble Spots
Engine Major Engine Major Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.
NA
Engine Minor Engine Minor Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.
NA
Engine Cooling Engine Cooling Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.
NA
Transmission Major Transmission Major Transmission rebuild or replacement, torque converter, clutch replacement.
NA
Owner Satisfaction Owner Satisfaction To learn about satisfaction, CR has collected survey data from our annual survey on more than half a million vehicles. Our subscribers provide great insights into their satisfaction by answering one simple question: If they had it to do all over again, would they definitely buy or lease the same model? In addition, respondents also rate their cars in six categories: driving experience, comfort, value, styling, audio, and climate systems. N/A indicates that we did not receive a large enough sample size to provide data for a specific year. An X indicates that the vehicle was not manufactured for a specific year.
2000
NA
2001
NA
2002
2003
NA
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
Driving Experience Driving Experience Includes acceleration and handling
Comfort Comfort Includes seats, climate control, noise, and ride
Value Value Did you get what you wanted relative to the price you paid?
Styling Styling How it looks inside and out
Safety Equipment
ABS and front side air bags standard. Rear side air bags standard from 2001-2007. Head protection air bags standard from 2001. ESC standard from 2000.
Road Test

When it was redesigned for 2015, the Mercedes-Benz C300 scored near the top of the sports sedan segment. This iteration of the C-Class has a beautiful interior and delivers a driving experience that is close to ideal when it comes to balancing performance and comfort. Simply put, the C300 delivers the driving pleasure people expect from the brand. For those new to Mercedes-Benz, we think you'll find the C300 comfortable, quiet, agile and altogether well done.

Our test car included 4Matic all-wheel drive, a rear camera, blind-spot assist, a sunroof, heated seats and the Premium package, which brought a Burmester audio system and LED headlights. Dipping liberally into the options list can be very expensive.

Seating
2 front, 3 rear
Drive Wheels
AWD , Rear
Warranty

In most cases, automotive warranties are based on the vehicle identification number (VIN), and the warranty will be valid regardless of ownership. The dealership can tell you exactly how much warranty is left.

Read more about extended warranties
Body Styles
coupe
sedan
Transmissions Available
  • 7-speed Automatic
Engines Available
  • 1.8-liter 4 turbo (201 hp)
  • 2-liter 4 turbo (241 hp)
  • 3-liter V6 turbo (329 hp)
  • 3.5-liter V6 (302 hp)
  • 4-liter V8 turbo (469 hp)
  • 4-liter V8 turbo (503 hp)
  • 6.3-liter V8 (451 hp)

Owner Reported Trouble Spots

The Reliability score is based on our latest subscriber survey of 2015 Mercedes-Benz C-Class owners. The owner comments describe problems respondents experienced with this vehicle.

Body Integrity

Squeaks, rattles, wind noises, loose or cracked seals and/or weather-stripping, air and water leaks.

What Owners Say

"Brakes make very loud noise when in reverse. Knocking under car when driving, major noice from passenger window"

Joseph P., CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"I can only say that six months ago, a rattling sound began in the engine -- somewhere. Recently, Mercedes has put out a recall on all 2015 C300 models. I have to wait for the appropriate parts to become available before the recall repairs can be conducted"

Anonymous, CA (2015 Mercedes-Benz C-Class C350 2.0-L 4 Cyl turbo)

"Belt idler pulley had to be replaced"

Anonymous, TX (2015 Mercedes-Benz C-Class C300 1.8-L 4 Cyl turbo)

"The windows all squeak in the weather stripping when they are fully raised. The dealer has attempted three repair attempts yet the problem reoccurred with a day"

Anonymous, PA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Dash squeaks. Dealer tried to fix in 3 separate occasions and was unable to fix"

Anonymous, CA (2015 Mercedes-Benz C-Class C400 3.0-L V6 turbo)

"Sudden onset of noises in the front end, driver's side. Happened after winter tires installed by dealership Turned out to be a wheel bearing problem"

Anonymous, ON (2015 Mercedes-Benz C-Class C400 3.5-L V6)

"on cold start, there is gip gip sound on first 5 minutes. Dealer fix the issue by replacing fan belt and tensoner and upgrade software to latest"

Peter N., CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Passenger seat belt buckle rattles when passenger is not htere Dash rattle under cold temperature"

Anonymous, CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Sunroof supposedly warped, was replaced, now waiting on another part because of another sunroof wind problem. Probably same issue incorrectly treated the first time"

David S., CO (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Wind noise, driver's front door windshield. Took three trips to dealer to resolve. First to diagnose, second to install redesigned door frame which holds window, third to install redesigned window. Although dealer claims problem is resolved I sill here wind noise, but cannot isolate it for further action"

Anonymous, NJ (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Wind noise is very apparent through the drivers side window...MB at this point has not fix for it. The noise is bad to the point that I will trade this car in next year if they don't come up with a fix"

Anonymous, NV (2015 Mercedes-Benz C-Class C400 3.0-L V6 turbo)

In-car Electronics

CD or DVD players, radio, speakers, GPS, communication system (e.g., OnStar), display screen freezes or goes blank, phone pairing (e.g. Bluetooth), voice control commands, steering wheel controls, portable music device interface (e.g., iPod/MP3 player), backup or other camera/sensors.

What Owners Say

Backup or other camera/sensors

"the camera just died, and had to be ordered from Germany, however the new one has noticeably better resolution"

Joe M., NC (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Error message - collision avoidance and anti-skid not working - causes transmission to stick in 2nd gear - problem clears when engine restarted - no error message in message history"

Perry R., IL (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Complete failure of back up camera with 3600 miles on car"

A M., AZ (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)
Display screen freezes up

"Display froze, then flashed, then the COMAND system rebooted, again and again. This disables the rear camera, radio, everything. I was told that the issue was that the GPS had to be updated, which was repaired under warranty. Fortunately no problems since"

Joe M., NC (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"on occasion the center console display freezes when transitioning from reverse to forward. Usually the display will reboot itself after 30 sec or so and will work normally thereafter"

Anonymous, GA (2015 Mercedes-Benz C-Class C300 1.8-L 4 Cyl turbo)

"Slow, slow, slow. Difficult to use. Data entry is good with touch pad. About 1/4 of attempted inputs for tech companies in silicon valley, system lacks information/address on buildings that have been constructed and completed for 7+ years"

Carter C., CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Was part of Command system previosly described"

Garrett A., NJ (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"When I needed it most, it just stopped working. I got the message " maps currently off line.""

Anonymous, CA (2015 Mercedes-Benz C-Class C300 Unsure)

"The paired phone sporadically cuts out, making the in-vehicle Bluetooth useless"

Anonymous, NY (2015 Mercedes-Benz C-Class C300 3.0-L V6 turbo)

"buzzing and vibration during phone USge"

Anonymous, CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

Electric System

Alternator, starter, hybrid battery and related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, distributor or rotor failure, spark plugs and wires failure.

What Owners Say

Exterior lights (other than headlights)

"Door accent light have blown twice ONE the driver side and on the passenger side"

Leslie P., ON (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Two out of four small lights illuminating the door handles burned out"

Anonymous, MA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Lights on door handles have failed (three of the four)"

Anonymous, MI (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"After a few months, the keyless entry stopped working, and I was unable to get in the car. It was a serious problem"

Dana B., NY (2015 Mercedes-Benz C-Class C300 3.0-L V6 turbo)

"Went to get into the car & neither key faub would work. Had to unlock it manually with the key and that set the alarm off, but we were able to stop the alarm"

Anonymous, GA (2015 Mercedes-Benz C-Class C400 3.0-L V6 turbo)

"For about a week after being serviced, the car kept warning me the tires were unbalanced. This was not the case, and it was pretty annoying. Had to bring the car in to have the gauge reset"

Dana B., NY (2015 Mercedes-Benz C-Class C300 3.0-L V6 turbo)

"The system has told me multiple times that more air pressure is needed in tires. One time it would not go off despite filling tires to correct pressure"

Anonymous, CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

Suspension

Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.

What Owners Say

Alignment

"Front tires were wearing on the sides of the tires. Dealer rotated the tires (which had been rotated at 7000 but hadn't been done after that even when I went in for regular maintenance). The alignment was done for safety concerns because we have a lot of pot holes after winter season"

Anonymous, IA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)
Electronic or air suspension

"No experienced problem. There was a recall involving the electric motor, as I recall"

R S., AZ (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Very rough ride due to sensor malfunction"

Anonymous, WI (2015 Mercedes-Benz C-Class C400 3.0-L V6 turbo)
Power steering leaks

"The hose to the power steering pump came off due to a broken connector resulting in total loss of fluid and power steering. It was a potentially dangerous situation, but fortunately, it happened as I was pulling out of my garage, not on the highway"

Enrique H., IL (2015 Mercedes-Benz C-Class C350 3.5-L V6)
Steering wheel vibration

"Vibration above 70 mph. Dealer does not agree"

Anonymous, TX (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)
Power steering pumps and hoses

"The power steering failed on me suddenly. They had no explanation. It was dangerous"

Anonymous, MA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

Drive System

Driveshaft or axle, CV joint, differential, transfer case, 4WD/AWD components, driveline vibration, traction control, electronic stability control (ESC), electrical failure.

What Owners Say

Electrical failure

"Car stopped running at highway speeds multiple times. Traction control warning on the dash. The said that the connections in the wiring harness needed "cleaned". This was extremely dangerous, as the car engine stopped running"

Anonymous, OH (2015 Mercedes-Benz C-Class C350 3.5-L V6)

"The seats would not work, no movement at all"

Anonymous, GA (2015 Mercedes-Benz C-Class C400 3.0-L V6 turbo)
Traction control

"Car stopped running at highway speeds multiple times. Traction control warning on the dash. The said that the connections in the wiring harness needed "cleaned". This was extremely dangerous, as the car engine stopped running"

Anonymous, OH (2015 Mercedes-Benz C-Class C350 3.5-L V6)
CV joint

"both cv joints failed"

Anonymous, WA (2015 Mercedes-Benz C-Class)

Exhaust

Muffler, pipes, catalytic converter, exhaust manifold, leaks.

What Owners Say

Other/unsure

"My car has a wide variety if system crashes, malfunctions, etc. it drives like a dream but reliability is epically bad"

Anonymous, MA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"The command system failed . It controls many functions including climate control ,nav system etc. It had to be replaced which took a week to get parts from Germany"

Garrett A., NJ (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Only the satellite radio would work. All other audio functions were static"

Anonymous, WI (2015 Mercedes-Benz C-Class C400 3.0-L V6 turbo)

"The COMAND system cuts out, making the hands-free Bluetooth ineffective"

Anonymous, NY (2015 Mercedes-Benz C-Class C300 3.0-L V6 turbo)

Transmission Minor

Gear selector or linkage, leaks, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission.

What Owners Say

Slipping transmission

"My transmission would get stuck and the car would lurch and stop"

Anonymous, CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)
Transmission computer

"As part of my transmission problem they reinstalled software"

Anonymous, CA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Faulty signal re: transmission. Door was not closed andsignal indicated transmission problem"

Anonymous, CA (2015 Mercedes-Benz C-Class C300 Unsure)

Engine Minor

Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, oil leaks.

What Owners Say

"Intermittent "Service Engine Soon" light"

Anonymous, MI (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Engine stalling when idling"

Anonymous, QC (2015 Mercedes-Benz C-Class C400 3.0-L V6 turbo)
Oil leaks

"Fitting on oil hose had had to be replaced"

Anonymous, TX (2015 Mercedes-Benz C-Class C300 1.8-L 4 Cyl turbo)

Climate System

Blower (fan) motor, A/C compressor, condenser, evaporator, heater system, automatic climate control, refrigerant leakage, electrical failure.

What Owners Say

Heater system

"I don't get any air blowing on feet espacially at the passenger side"

Anonymous, QC (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)
Refrigerant leaks

"Air conditioning stopped working because Freon had leaked out"

G C., FL (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

Body Hardware

Power or manual windows, locks and latches, tailgate, hatch or trunk, doors or sliding doors, mirrors, seat controls, safety belts, sunroof, convertible top.

What Owners Say

"It took 8 working days to replace the seats cloth. The Artico leather turned white in cold weather"

Anonymous, QC (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)
Tailgate, hatch or trunk

"hands free trunk would unlatch but not open without multiple kicks, dealer attempted repair 4 times"

Anonymous, WA (2015 Mercedes-Benz C-Class)

Paint/Trim

Paint (fading, chalking, cracking, or peeling), loose interior and exterior trim or moldings, rust.

What Owners Say

"Faux metal trim near arm rest is peeling up. Glove box latch doesn't close all the way. Rear door gasket trim is warped. Wood grain clear coat is easily scratched. Passenger front headrest rattles on bumps and won't move"

Brian G., GA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

"Faded or stained appearance on hood and trunk lid"

Anonymous, OR (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

Brakes

Antilock system (ABS), parking brake, master cylinder, calipers, rotors, pulsation or vibration, squeaking, brake failure or wear.

What Owners Say

"Loud squeek on cold start"

Anonymous, IL (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

Engine Cooling

Radiator, cooling fan, antifreeze leaks, water pump, thermostat, overheating.

What Owners Say

Water pump

"Water pump went bad and had to be replaced"

Anonymous, MA (2015 Mercedes-Benz C-Class C300 Unsure)

Power Equipment

Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, remote engine start, alarm or security system

What Owners Say

Electronic ignition

"The car occasionally doesn't start right away or at all when push button start is used. Ongoing problem for over a year and dealer says they can't replicate it which means they can't solve the problem"

Brian G., GA (2015 Mercedes-Benz C-Class C300 2.0-L 4 Cyl turbo)

Engine Major

Engine rebuild or replacement, cylinder head, head gasket, turbo or supercharger, timing chain or timing belt.

Fuel System

Check engine light, sensors (includes O2 or oxygen sensor), emission control devices (includes EGR), engine computer, engine computer, fuel cap, fuel gauge/sender, fuel injection system, fuel pump, fuel leaks, stalling or hesitation.

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