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Mercedes-Benz C350Model year report

2014 Mercedes-Benz C350 Problems

Complaints
13filed with NHTSA
Median mileage
60,000miles, 4 complaints with mileage
Recalls
4campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
5 / 5stars overall, 2 rated versions
EPA fuel economy
23 mpgcombined, 3.5L 6-cyl RWD · 20 city / 29 hwy

Sources: NHTSA records for the 2014 Mercedes-Benz C350 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

NHTSA recorded 13 consumer complaints for the 2014 Mercedes-Benz C350. The part named most often is air bags, with 8 complaints (62% of the total), followed by body and structure (2) and brakes (1). 4 of the complaints include a mileage, and 25% of those were filed for vehicles with under 50,000 miles; the median is 60,000 miles. Of all complaints, 1 involved a crash, 1 an injury, according to the filers. NHTSA lists 4 recall campaigns and 99 technical service bulletins for this model year. Air bags complaints overlap with 3 recall campaigns covering the inflator module filed under the same part. Body and structure complaints overlap with 7 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Air bags: “I have an open recall for my airbags since january of 2019. I am shipping my vehicle through the military in 2 months but am filling the paperwork out now and one of the criteria is that the car cannot have any open recalls. When I did research on the recall it is still open and unable to be fixed due to remedy not available yet.”

NHTSA complaint #11320014, filed 2020-04, 60,000 miles

Body and structure: “The contact owns a 2014 Mercedes-Benz C350. The contact stated that while the vehicle was parked, the front driver’s side interior door latch detached. The contact had to reach through the front driver’s side window to open the front driver's side door using the exterior door handle. No warning lights were illuminated. The vehicle remained at the residence. A dealer was contacted and informed the contact that there was an unknown recall related to the failure; however, the VIN was not included in the recall. The vehicle was not diagnosed or repaired. …”

NHTSA complaint #11709762, filed 2026-01, 60,000 miles

Brakes: “2014 Mercedes-Benz E-350 4matic. Brake fluid and Brake warning lights illuminated. The vehicle was taken to the local dealer where the service technician advised the brake lines to the rear tries were rusted and had to be replaced . The vehicle was repaired at a estimated cost of $2,900. The approximate failure mileage was 100,000. we were advised that the car is a hazard to drive until repaired. We have requested the dealer to turnover the failed parts for our inspection and use”

NHTSA complaint #11514058, filed 2023-03

Electrical system: “Steering wheel spring grounding problem can accidentally deploy airbag. Recalled in oct 2017 but I'm told parts will not be available until may 2018. This is an unreasonably long time. I went to trade-in this car to purchase a new one and was told that no dealer can sell a car with a pending safety recall except as is through an auto auction, which lowers the value of my car by over $2,000 versus a normal dealer trade. How do I recover this loss without suing mercedes? Are there any government remedies other than private lawsuit?”

NHTSA complaint #11056561, filed 2017-12, 22,000 miles

Mileage when problems were reported

25% of the 4 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 60,000 and 60,000 miles.

0%0–1025%10–250%25–5075%50–750%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (4 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 60,000 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

201720182019320202023202420252026
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2014 Mercedes-Benz C350. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
C-Class · sedan AWD★★★★★4 / 4554 · 10.5% risk
C-Class · sedan RWD★★★★★4 / 4554 · 10.5% risk

Driver aids listed by NHTSA for the 2014 model year: forward collision warning optional, lane departure warning not available, automatic emergency braking not available.

Neighbouring years: 2013: same overall rating; 2015: 4 stars overall. A redesign between years can change both the car and the test.

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2014 Mercedes-Benz C350 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
C350 RWD3.5L 6-cyl7-speed automatic202923$3,550
C350 4matic Coupe 4WD3.5L 6-cyl7-speed automatic192722$3,750
C350 Coupe RWD3.5L 6-cyl7-speed automatic202823$3,550
C350 RWD3.5L 6-cyl · flex-fuel7-speed automatic202823$3,550

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2014 Mercedes-Benz C350 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 99 on record; the latest 10 are shown.

See all 99 bulletins →

Other model years of the Mercedes-Benz C350

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2015617,2504423—Not enough data
20141360,0004523—Not enough data
20132165,5006523—Falling
20123555,0005—2233 · FewerFalling
20112652,861442029 · FewerFalling
20101899,0604—20—Rising
20096559,1007—2062 · TypicalRising
200814470,0006—20100 · MoreFalling
2007690,8005—21—Not enough data
20062371,0005—21—Falling

All Mercedes-Benz C350 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2014 Mercedes-Benz C350 have?

NHTSA recorded 13 consumer complaints for the 2014 Mercedes-Benz C350 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2014 Mercedes-Benz C350 is reported most often?

Air bags is named most often, in 8 complaints (62% of the total), followed by body and structure with 2.

Has the 2014 Mercedes-Benz C350 been recalled?

NHTSA lists 4 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

How did the 2014 Mercedes-Benz C350 do in NHTSA crash tests?

NHTSA's 5-Star Safety Ratings give the 2014 Mercedes-Benz C350 5 out of 5 stars overall, across 2 rated versions (body style and drive). Ratings from different model years are only comparable when the vehicle was not redesigned in between.

What gas mileage does the 2014 Mercedes-Benz C350 get?

The EPA rates the 2014 Mercedes-Benz C350 (C350, 3.5L 6-cyl) at 23 mpg combined, 20 city and 29 highway, with an estimated annual fuel cost of $3,550 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2014 Mercedes-Benz C350 reported?

Among the 4 complaints that include a mileage, the median is 60,000 miles and the middle half falls between 60,000 and 60,000 miles; 25% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.