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Mercedes-Benz CLS550Model year report

2007 Mercedes-Benz CLS550 Problems

Complaints
35filed with NHTSA
Median mileage
58,700miles, 29 complaints with mileage
Recalls
4campaigns 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
16 mpgcombined, 5.5L 8-cyl RWD · 14 city / 20 hwy

Sources: NHTSA records for the 2007 Mercedes-Benz CLS550 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 35 consumer complaints for the 2007 Mercedes-Benz CLS550. The part named most often is fuel system, with 24 complaints (69% of the total), followed by transmission and drivetrain (4) and electrical system (2). 29 of the complaints include a mileage, and 34% of those were filed for vehicles with under 50,000 miles; the median is 58,700 miles. Of all complaints, 1 a fire, according to the filers. NHTSA lists 4 recall campaigns and 75 technical service bulletins for this model year. Fuel system complaints overlap with 4 technical service bulletins filed under the same part. Transmission and drivetrain complaints overlap with 7 technical service bulletins filed under the same part.

Not compared (before 2008). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.

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: Tires (1), Vehicle speed control (1), Visibility (wipers, defrost, mirrors) (1).

Example complaints

Fuel system: “I've had this vehicle for years. Each time I fillup, there is a very intoxicating smell of fuel inside and outside the vehicle. I was reading up on it and seems to be a common problem. This is a true health hazard as you cannot breathe right because of the fumes. Not to mention the chances of it catching fire.”

NHTSA complaint #10619476, filed 2014-08, 14,000 miles

Transmission and drivetrain: “Bought this certified CLS550 from keyes european mercedes in van nuys,ca on 11/23/2009 with 42000 miles as soon as I got the car home I noticed the fan was overly loud and my temperature gauge was reading 110. Called dealership they said fan motor on these cars are all extremely loud and temp. Sounded okay. Two weeks later I was driving when I was alerted to turn off engine immediately due to car seriously overheating. Dealer said it was the thermostat bad on car. Also been having trouble with the transmission since I bought car. Keep in mind I have only had it for about 47 days now. …”

NHTSA complaint #10299073, filed 2010-01, 42,000 miles

Electrical system: “The contact owns a 2007 mercedes benz s550. The contact stated that while the vehicle was parked, black smoke emitted from under the hood and within seconds, the vehicle was completely destroyed by the fire. The fire department was called and advised that the fire appeared to be electrical. The vehicle was destroyed. The manufacturer was not made aware of the failure. The failure and the current mileage was 57,000.”

NHTSA complaint #10451128, filed 2012-03, 57,000 miles

Engine cooling: “Catastrophic failure with sudden loss of power and inability to proceed at more than 20 MPH. It has now recurred twice and vehicle flatbedded to agency. Has been in shop for six days with no repair. Service manager denies that this is the second failure because his diagnostics were unable to determine the problem the first time.”

NHTSA complaint #10246439, filed 2008-10, 5,000 miles

Mileage when problems were reported

34% of the 29 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 44,600 and 87,726 miles.

3%0–1010%10–2521%25–5031%50–7510%75–10021%100–1503%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (29 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 58,700 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.

’07’10’12’146’16’18’21’25
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 2007 Mercedes-Benz CLS550 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
CLS550 RWD5.5L 8-cyl7-speed automatic142016$5,150

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 2007 Mercedes-Benz CLS550 → · 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. 75 on record; the latest 10 are shown.

See all 75 bulletins →

Other model years of the Mercedes-Benz CLS550

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20141074,7174—20—Not enough data
20122349,2803—20—Stable
20081780,0003—16—Stable
20073558,7004—16Not compared (before 2008)Falling
2006770,0001———Not enough data

All Mercedes-Benz CLS550 model years

Frequently asked questions

How many NHTSA complaints does the 2007 Mercedes-Benz CLS550 have?

NHTSA recorded 35 consumer complaints for the 2007 Mercedes-Benz CLS550 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2007 Mercedes-Benz CLS550 is reported most often?

Fuel system is named most often, in 24 complaints (69% of the total), followed by transmission and drivetrain with 4.

Has the 2007 Mercedes-Benz CLS550 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 2007 Mercedes-Benz CLS550 get?

The EPA rates the 2007 Mercedes-Benz CLS550 (CLS550, 5.5L 8-cyl) at 16 mpg combined, 14 city and 20 highway, with an estimated annual fuel cost of $5,150 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2007 Mercedes-Benz CLS550 reported?

Among the 29 complaints that include a mileage, the median is 58,700 miles and the middle half falls between 44,600 and 87,726 miles; 34% 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.