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Mercedes-Benz S550Model year report

2014 Mercedes-Benz S550 Problems

Complaints
24filed with NHTSA
Median mileage
30,750miles, 14 complaints with mileage
Recalls
5campaigns on record
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA crash rating
—no overall rating published
EPA fuel economy
20 mpgcombined, 4.7L 8-cyl RWD · 17 city / 26 hwy

Sources: NHTSA records for the 2014 Mercedes-Benz S550 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 24 consumer complaints for the 2014 Mercedes-Benz S550. The part named most often is other or unknown, with 4 complaints (17% of the total), followed by visibility (4) and brakes (3). 14 of the complaints include a mileage, and 57% of those were filed for vehicles with under 50,000 miles; the median is 30,750 miles. Of all complaints, 4 involved a crash, 2 an injury, according to the filers. NHTSA lists 5 recall campaigns and 139 technical service bulletins for this model year. Other or unknown complaints overlap with 2 technical service bulletins filed under the same part. Visibility complaints overlap with 8 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.

Also reported: Engine cooling (1), Equipment (1), Exterior lighting (1), Forward collision avoidance (1), Lane departure (1), Latches, locks and linkages (1), Body and structure (1), Tires (1), Vehicle speed control (1), Wheels (1).

Example complaints

Other or unknown: “At approximately 0030 friday august 07, I was travelling 65 MPH north bound on the ca215/60 freeway, there was little traffic. I heard what sounded like a gunshot, then a crincling glass sound and finally a whooshing of air I would soon see was a gaping hole where my closed panoramic sunroof use to be. I exited the freeway at the next exit and pulled into a gas station, got out of the car and upon inspecting the car found a huge hole where my panaramic sunroof use to be. I also made a video available at request.”

NHTSA complaint #11348455, filed 2020-08, 65,000 miles

Visibility (wipers, defrost, mirrors): “This vehicle was purchased new in 2014. The vehicle has a reverse tilt function feature on the right passenger mirror. When functioning properly, the right passenger mirror tilts downward and to the right when the vehicle is placed in reverse so that the driver can see all objects to the right rear of the vehicle (in the vehicle's blind spot). Once the vehicle is shifted into drive, the right mirror is supposed to return to the driver's (memory) setting position for the mirror so that the driver is able to see out of the right mirror when driving on the highway. …”

NHTSA complaint #10726601, filed 2015-06, 8,000 miles

Brakes: “The contact owns a 2014 mercedes benz S550. While driving approximately 10 MPH, the vehicle downshifted and suddenly there was a hard shift when the accelerator pedal was depressed or when stopped at a traffic light. The contact also noticed that there was a loud noise near the rear of the vehicle. The contact also noticed that the tilt function feature on the right passenger mirror failed. …”

NHTSA complaint #10732993, filed 2015-07, 2,000 miles

Steering: “According to the recall NHTSA campaign id number: 16v899000 and the vehicle inspection report from the local mercedes dealership show as an identical issue. However, my vehicle is not identified as apart of the recall. The recall states the issue is due to the steering control unit not being soldered properly. Difficult to think this falls under normal wear and tear. I will get the repair done begrudgingly, though it would be nice if mercedes would have stood behind its recall.”

NHTSA complaint #11102977, filed 2018-06

Mileage when problems were reported

57% of the 14 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 8,000 and 65,000 miles.

29%0–1021%10–257%25–5036%50–757%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (14 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 30,750 miles.

Complaints by year filed

Trend: stable. Complaints filed in the last 3 full calendar years are within 25% of the 3 years before.

2015420172019202120232025
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.

Fuel economy and running cost

EPA ratings for each 2014 Mercedes-Benz S550 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
S550 RWD4.7L 8-cyl7-speed automatic172620$4,100
S550 4matic 4WD4.7L 8-cyl7-speed automatic162619$4,350

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 S550 → · 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. 139 on record; the latest 10 are shown.

See all 139 bulletins →

Other model years of the Mercedes-Benz S550

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20171623,00010—21—Rising
20161557,2285—20—Rising
20154122,3005—20Not compared (fewer than 3 comparable model years)Rising
20142430,7505—20—Stable
2013732,4200—19—Not enough data
2012586,0002—19—Not enough data
2011967,4402—18—Not enough data
20101682,0000—18—Falling
20081970,0000—16—Rising
20075470,0000—17Not compared (before 2008)Falling

All Mercedes-Benz S550 model years

Frequently asked questions

How many NHTSA complaints does the 2014 Mercedes-Benz S550 have?

NHTSA recorded 24 consumer complaints for the 2014 Mercedes-Benz S550 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2014 Mercedes-Benz S550 is reported most often?

Other or unknown is named most often, in 4 complaints (17% of the total), followed by visibility with 4.

Has the 2014 Mercedes-Benz S550 been recalled?

NHTSA lists 5 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2014 Mercedes-Benz S550 get?

The EPA rates the 2014 Mercedes-Benz S550 (S550, 4.7L 8-cyl) at 20 mpg combined, 17 city and 26 highway, with an estimated annual fuel cost of $4,100 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2014 Mercedes-Benz S550 reported?

Among the 14 complaints that include a mileage, the median is 30,750 miles and the middle half falls between 8,000 and 65,000 miles; 57% 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. 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.