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Mercedes-Benz S550EModel year report

2015 Mercedes-Benz S550E Problems

Complaints
7filed with NHTSA
Median mileage
56,500miles, 4 complaints with mileage
Recalls
4campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—no overall rating published
EPA fuel economy
26 mpgcombined (gas only), 3.0L 6-cyl · plug-in hybrid RWD · 24 city / 30 hwy

Sources: NHTSA records for the 2015 Mercedes-Benz S550E (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 7 consumer complaints for the 2015 Mercedes-Benz S550E. The part named most often is other or unknown, with 3 complaints (43% of the total), followed by electrical system (2) and fuel system (2). 4 of the complaints include a mileage, and 50% of those were filed for vehicles with under 50,000 miles; the median is 56,500 miles. Of all complaints, 1 involved a crash, according to the filers. NHTSA lists 4 recall campaigns and 94 technical service bulletins for this model year. Other or unknown complaints overlap with 3 technical service bulletins filed under the same part. Electrical system complaints overlap with 27 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

Other or unknown: “On 8/29/17 around 11:20 - 11:30am, I was driving on n270 just off from hov lane from s495 near montrose exit(little bit before), some metallic round wheel type with sharp edges around flew over from s270. I tried to avoid it by swerve my car but it must have landed below my car and scratched underneath which caused my car making weird sound plus burning gasoline smell. I didn't see my tire pressure gaze change so I went into local lane from falls road to get to my home. My car was not steering properly and I can smell gasoline even from closed windows. …”

NHTSA complaint #11020403, filed 2017-08, 40,000 miles

Electrical system: “The contact owns a 2009 Mercedes-Benz S550. The contact stated that while driving at an undisclosed speed with the air condition system activated, there was hot air blowing out of the vents. The contact stated that the hot air was blowing out of the vents and the floorboard was soiled with water. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the compressor and the motherboard needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to the independent mechanic. …”

NHTSA complaint #11546329, filed 2023-09, 73,000 miles

Fuel system: “I purchased a lavish s550 and over time I started smelling gas in the cabin. I didn't think too much about it until the smell became more pungent. I go online to do some research and find out some of the cars had faulty fuel pumps which leak into the backseat. Not only does it leak but the vapors are spread throughout the cabin making it unbearable to breath. I took the car in to mercedes and they don't wanna own up to there faulty equipment. With the temperature being extremely hot I would think my car would blow up because it is a black car. Any help with this matter is appreciated. …”

NHTSA complaint #11102734, filed 2018-06, 164,000 miles

Brakes: “I was on a snow covered road in my neighborhood driving about 10-15 MPH and attempted to make a right turn. The car kept going straight and slid off the road. The esp stability control and ABS failed to operate at that point. This was after a recent reprogramming by the dealer. This function had operated correctly all winter prior to that event. The esp light did not flash like it normally does in that situation. There could have been a car coming the other way and I would have hit them due to this failure. No error lights were displayed by the car. …”

NHTSA complaint #10327950, filed 2010-04, 19,800 miles

Mileage when problems were reported

50% of the 4 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 40,000 and 73,000 miles.

0%0–1025%10–2525%25–5025%50–750%75–1000%100–15025%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: 56,500 miles.

Complaints by year filed

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

2010201420162201720182023
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 2015 Mercedes-Benz S550E version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving); plug-in hybrid figures are for gasoline-only (hybrid mode) driving, so no annual cost is shown.

VersionEngineTransmissionCityHwyComb.Fuel / yr
S550e RWD3.0L 6-cyl · plug-in hybrid7-speed automatic243026 gas only—

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 2015 Mercedes-Benz S550E → · 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. 94 on record; the latest 10 are shown.

See all 94 bulletins →

Other model years of the Mercedes-Benz S550E

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2015756,5004—26—Not enough data

All Mercedes-Benz S550E model years

Frequently asked questions

How many NHTSA complaints does the 2015 Mercedes-Benz S550E have?

NHTSA recorded 7 consumer complaints for the 2015 Mercedes-Benz S550E as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2015 Mercedes-Benz S550E is reported most often?

Other or unknown is named most often, in 3 complaints (43% of the total), followed by electrical system with 2.

Has the 2015 Mercedes-Benz S550E been recalled?

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

What gas mileage does the 2015 Mercedes-Benz S550E get?

The EPA rates the 2015 Mercedes-Benz S550E (S550e, 3.0L 6-cyl · plug-in hybrid) at 26 mpg combined, 24 city and 30 highway when running on gasoline in hybrid mode. Other engine and drive versions are rated differently.

At what mileage are problems with the 2015 Mercedes-Benz S550E reported?

Among the 4 complaints that include a mileage, the median is 56,500 miles and the middle half falls between 40,000 and 73,000 miles; 50% 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.