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Mercedes-Benz CLK350Model year report

2006 Mercedes-Benz CLK350 Problems

Complaints
37filed with NHTSA
Median mileage
70,000miles, 31 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
20 mpgcombined, 3.5L 6-cyl RWD · 17 city / 26 hwy

Sources: NHTSA records for the 2006 Mercedes-Benz CLK350 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 37 consumer complaints for the 2006 Mercedes-Benz CLK350. The part named most often is fuel system, with 11 complaints (30% of the total), followed by engine (6) and electrical system (5). 31 of the complaints include a mileage, and 23% of those were filed for vehicles with under 50,000 miles; the median is 70,000 miles. Of all complaints, 2 involved a crash, 1 an injury, according to the filers. NHTSA lists 4 recall campaigns and 50 technical service bulletins for this model year. Fuel system complaints overlap with 1 technical service bulletin filed under the same part. Engine complaints overlap with 3 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: Electronic stability control (1), Seat belts (1), Steering (1), Visibility (wipers, defrost, mirrors) (1), Wheels (1).

Example complaints

Fuel system: “I first thought someone had been stealing my gas until my car started to smell like gas. If I give someone a ride in my car, they make comments about the smell as soon as I start to drive. My coworkers have noticed the odor in when they pass by my car in the parking lot and the spots that it leaves on the ground. I took my car to the mechanic and he said my fuel pump is leaking on to the top of my fuel tank at an excessive rate and is not safe to drive. My car only has 84,000 miles so I did some research on recalls. …”

NHTSA complaint #11056379, filed 2017-12, 84,000 miles

Engine: “I've just bought the car and it has only 70k, the engine doesn't want to go, it stalls but there is no check engine light on, I'll be driving and the car will just die, or start to diminish, and gas consumption , now all my lights fail, high beams, low beams, turn signals, Brake lights one after another, so I go to auto zone to purchase lights and one of the associates comes to help me, he stares that all the we ires are exposed,”

NHTSA complaint #11430148, filed 2021-08

Electrical system: “Bought the car in july 2013 third brake light lens fell off.I checked my brake lights with someone pushing the brake pedal and observed the electrical component dangling loose inside trunk third light space but no cover lens. Didn't notice the lens had fallen off until several strangers tailing me told me. I know there is a brake light issue that is being recalled on a different mercedes model and year. I was thinking that perhaps my vehicle might have the same issue. So I googled this issue and to my disappointment found many more mercedes benz owners had the same problem as me. …”

NHTSA complaint #10592883, filed 2014-05, 76,682 miles

Engine cooling: “Check engine light came on and mercedes dealer replaced camshaft sensor the vehicle had 52500 miles. Check engine light came on again I took it to an independent repair. They stated it is the same problem the camshaft problems. The vehicle has 68000 miles now and this should not be happening to this vehicle. It continues to have problems and I have contacted mercedes and they refuse to take responsibility for these premature issues I am having with this vehicle. …”

NHTSA complaint #10578249, filed 2014-04, 52,500 miles

Mileage when problems were reported

23% of the 31 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 53,000 and 80,000 miles.

0%0–106%10–2516%25–5035%50–7532%75–10010%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (31 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 70,000 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.

’07’10’12’147’16’19’21
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 2006 Mercedes-Benz CLK350 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
CLK350 RWD3.5L 6-cyl7-speed automatic172620$4,100
CLK350 (Cabriolet) RWD3.5L 6-cyl7-speed automatic162419$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 2006 Mercedes-Benz CLK350 → · 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. 50 on record; the latest 10 are shown.

See all 50 bulletins →

Other model years of the Mercedes-Benz CLK350

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2009875,7393—20—Not enough data
20081554,0003—20—Falling
20074268,5004—20Not compared (before 2008)Falling
20063770,0004—20Not compared (before 2008)Falling

All Mercedes-Benz CLK350 model years

Frequently asked questions

How many NHTSA complaints does the 2006 Mercedes-Benz CLK350 have?

NHTSA recorded 37 consumer complaints for the 2006 Mercedes-Benz CLK350 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2006 Mercedes-Benz CLK350 is reported most often?

Fuel system is named most often, in 11 complaints (30% of the total), followed by engine with 6.

Has the 2006 Mercedes-Benz CLK350 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 2006 Mercedes-Benz CLK350 get?

The EPA rates the 2006 Mercedes-Benz CLK350 (CLK350, 3.5L 6-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 2006 Mercedes-Benz CLK350 reported?

Among the 31 complaints that include a mileage, the median is 70,000 miles and the middle half falls between 53,000 and 80,000 miles; 23% 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.