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Mercedes-Benz S400Model year report

2010 Mercedes-Benz S400 Problems

Complaints
16filed with NHTSA
Median mileage
69,000miles, 13 complaints with mileage
Recalls
0campaigns on record
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
21 mpgcombined, 3.5L 6-cyl · hybrid RWD · 19 city / 25 hwy

Sources: NHTSA records for the 2010 Mercedes-Benz S400 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 16 consumer complaints for the 2010 Mercedes-Benz S400. The part named most often is electrical system, with 10 complaints (63% of the total), followed by engine (3) and fuel system (3). 13 of the complaints include a mileage, and 38% of those were filed for vehicles with under 50,000 miles; the median is 69,000 miles. NHTSA lists 0 recall campaigns and 61 technical service bulletins for this model year. Electrical system complaints overlap with 13 technical service bulletins filed under the same part. Engine complaints overlap with 2 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: Vehicle speed control (1).

Example complaints

Electrical system: “I was driving, trying to get off the highway, I took exit which is a 270 degree circle with sharp turns, I am not driving fast at all but the car just stalled while driving, steering wheel locked and I almost fall down the hill, I almost died, this product has serious quality issues. …”

NHTSA complaint #10749166, filed 2015-08, 101,000 miles

Engine: “The S400 hybrid has a habit of stalling when in a stop position. This requires a complete re-start at a stop light or after having come to a complete stop. In addition the air conditioning shuts off and does not come back on until you stop for a few minutes and re-start the vehicle. The car stalling is very un-safe. The car stalls at a stop position.”

NHTSA complaint #10891643, filed 2016-07, 61,000 miles

Fuel system: “Strong gas orders from interior after fill up. Stationary, in motion, stopped. To the point of nausea and light headedness. 2011 is on recall list for gas pump and sender replacement, plus warranty extension to 15 years for this problem. This needs to also include the 2010 S400 hybrids vehicle has only 87,000 miles on it, and cannot be driven due to possible fuel ingition and the possibility of a catastrophic fire. Please respond with the utmost of haste, lives are at stake. Death by fire is horrific.”

NHTSA complaint #11362925, filed 2020-10, 87,000 miles

Other or unknown: “2010 S400 hybrid wont start first instance was less than 24 hour of purchasing car from local dealer. Lights all on but no crank. Started after and two weeks later it had to be towed because it completely wont start. Mbusa forum chat and several social media groups all around the world has the same problem with this model and it comes down to an electronics power module that cost more than what the car is worth to repair. Please advise!”

NHTSA complaint #11286606, filed 2019-12, 47,426 miles

Mileage when problems were reported

38% of the 13 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 42,000 and 100,009 miles.

8%0–100%10–2531%25–5023%50–758%75–10031%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (13 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 69,000 miles.

Complaints by year filed

Trend: falling. Complaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

201320142015201620192020420212022
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 2010 Mercedes-Benz S400 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
S400 Hybrid RWD3.5L 6-cyl · hybrid7-speed automatic192521$3,900

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

NHTSA lists no recall campaigns for the 2010 Mercedes-Benz S400 in the data used here. A recall can apply to some vehicles of a model year and not others, so check a specific vehicle by 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. 61 on record; the latest 10 are shown.

See all 61 bulletins →

Other model years of the Mercedes-Benz S400

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2011593,5002—21—Not enough data
20101669,0000—21—Falling

All Mercedes-Benz S400 model years

Frequently asked questions

How many NHTSA complaints does the 2010 Mercedes-Benz S400 have?

NHTSA recorded 16 consumer complaints for the 2010 Mercedes-Benz S400 as of Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2010 Mercedes-Benz S400 is reported most often?

Electrical system is named most often, in 10 complaints (63% of the total), followed by engine with 3.

Has the 2010 Mercedes-Benz S400 been recalled?

NHTSA lists no recall campaigns for this model year in the data used here. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2010 Mercedes-Benz S400 get?

The EPA rates the 2010 Mercedes-Benz S400 (S400 Hybrid, 3.5L 6-cyl · hybrid) at 21 mpg combined, 19 city and 25 highway, with an estimated annual fuel cost of $3,900 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2010 Mercedes-Benz S400 reported?

Among the 13 complaints that include a mileage, the median is 69,000 miles and the middle half falls between 42,000 and 100,009 miles; 38% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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.