2007 Mercedes-Benz CLK350 Problems
- Complaints
- 42filed with NHTSA
- Median mileage
- 68,500miles, 36 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 / 25 hwy
Sources: NHTSA records for the 2007 Mercedes-Benz CLK350 (complaints, recalls, investigations), EPA fuel economy. Report an error
NHTSA recorded 42 consumer complaints for the 2007 Mercedes-Benz CLK350. The part named most often is fuel system, with 14 complaints (33% of the total), followed by air bags (7) and transmission and drivetrain (6). 36 of the complaints include a mileage, and 28% of those were filed for vehicles with under 50,000 miles; the median is 68,500 miles. NHTSA lists 4 recall campaigns and 57 technical service bulletins for this model year. Fuel system complaints overlap with 2 technical service bulletins filed under the same part. Air bags complaints overlap with 1 technical service bulletin 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.
- Fuel system14 33%
- Air bags7 17%
- Electrical system4 9.5%
- Engine4 9.5%
- Vehicle speed control4 9.5%
- Body and structure2 4.8%
- Exterior lighting1 2.4%
- Other or unknown1 2.4%
Also reported: Seat belts (1), Seats (1), Tires (1).
Example complaints
Fuel system: “Bought the vehicle at 42k miles 3 years and it smells fuel inside the vehicle and the garage for a couple of days on each tank fill up. It smells so bad I have leave the garage door open sometimes so that my house does not catch fire along the vehicle. Searched online a lot of owners of the same vehicle have the same complaint.”
NHTSA complaint #11301880, filed 2020-01, 42,000 milesAir bags: “When the supplemental restraint system light (srs) came on I was told the harness under the seat had to be replaced at considerable cost. I had it repaired an a short time later it came on again. I am told again I have a faulty harness and again I must do the same repair at my expense. This is not safe and mercedes takes no responsibility.”
NHTSA complaint #10826116, filed 2016-02, 35,000 milesTransmission and drivetrain: “I slowed down to make a turn and the car would not accelerate. It appeared to be stuck in high gear and did not shift back down to a low gear. This happened twice over a 3 week period. Both times I almost caused a traffic accident by being stuck in the middle of the road. I took the car to the mb dealer and was told it was the conductor plate sensor board that controls the transmission. The fix was $1300 to replace the unit.”
NHTSA complaint #10763765, filed 2015-09, 103,190 milesElectrical system: “Driving down the road at a slow speed and the car just quits. Sometimes it will start itself back up and sometimes I have to pull off to the side of the road to turn ignition off and then on again. The car will just quit at highway speeds and after some quick thinking and realizing what just happened the only thing to do is drift to the berm of the road with no pwr steering or brakes. There are also times when I start the car it will quit and takes two to three more tries. Also had a severe raw gas coming from the car after a fill up. …”
NHTSA complaint #10585061, filed 2014-04, 66,400 milesMileage when problems were reported
28% of the 36 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 49,000 and 103,240 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.
Fuel economy and running cost
EPA ratings for each 2007 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).
| Version | Engine | Transmission | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|---|
| CLK350 RWD | 3.5L 6-cyl | 7-speed automatic | 17 | 25 | 20 | $4,100 |
| CLK350 (Cabriolet) RWD | 3.5L 6-cyl | 7-speed automatic | 17 | 25 | 20 | $4,100 |
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
- 24V874000Nov 19, 2024Visibility › Sun/moon roof assemblyCovers: Mercedes-Benz CLK350 2006–2009, E320 2003–2009, C230 2002–2007 +20 more
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please see the recall report for a complete list of models and model years. The glass sunroof panel may not be properly secured and can detach.
- 22V954000Dec 23, 2022Visibility › Sun/moon roof assemblyCovers: Mercedes-Benz CLK350 2006–2009, C230 2002–2007, CLS550 2006–2011 +18 more
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2001-2011 C-Class, CLK, E-Class, and CLS vehicles. Please refer to MBUSA's recall report for specific vehicle model details. The glass sunroof panel may not be properly secured and may detach.
- 21V196000Mar 19, 2021Visibility › Sun/moon roof assemblyCovers: Mercedes-Benz CLK350 2006–2007, E350 2006–2007, E320 2006–2007 +14 more
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2007 C350, C230, C280, CLK350, E320CDI, E350 Wagon, E350, 2006 C55 AMG, CLK500, CLS500, CLS55 AMG, E500 Wagon, E500, E55 AMG, 2007 CLK550, CLS550, CLS63 AMG, E550, E63 AMG, and E63 Wagon AMG vehicles…
- 19V918000Dec 20, 2019Visibility › Sun/moon roof assemblyCovers: Mercedes-Benz CLK350 2006–2009, E320 2003–2009, C320 2001–2005 +21 more
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2001-2011 vehicles. The bonding between the glass panel and the sliding roof frame may deteriorate, possibly resulting in the glass panel detaching from the vehicle. For a full list of the affected models…
Recall details for the 2007 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. 57 on record; the latest 10 are shown.
- 11038186Sep 22, 2026Brakes. Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is…
- 11038217Sep 14, 2026Body and structure. Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even…
- 11036101Aug 6, 2026Body and structure. Complaint Clanking noise from the area of the speakers in the doors. Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even…
- 11035005Jul 14, 2026Transmission and drivetrain. Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound…
- 11032875May 19, 2026Visibility (wipers, defrost, mirrors). Complaint There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper blades squeaking, chattering, shuddering B: The windshield is not wiped completely…
- 11031580Apr 16, 2026Exterior lighting. Complaint Headlamp, front fog lamp leaky or fogged. Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical…
- 11029959Mar 9, 2026Exterior lighting. Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical…
- 11029062Feb 25, 2026Exterior lighting. Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging…
- 11029025Feb 24, 2026Exterior lighting. Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical…
- 11028989Feb 24, 2026Exterior lighting. Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging…
Other model years of the Mercedes-Benz CLK350
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2009 | 8 | 75,739 | 3 | — | 20 | — | Not enough data |
| 2008 | 15 | 54,000 | 3 | — | 20 | — | Falling |
| 2007 | 42 | 68,500 | 4 | — | 20 | Not compared (before 2008) | Falling |
| 2006 | 37 | 70,000 | 4 | — | 20 | Not compared (before 2008) | Falling |
All Mercedes-Benz CLK350 model years
Frequently asked questions
How many NHTSA complaints does the 2007 Mercedes-Benz CLK350 have?
NHTSA recorded 42 consumer complaints for the 2007 Mercedes-Benz CLK350 as of Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2007 Mercedes-Benz CLK350 is reported most often?
Fuel system is named most often, in 14 complaints (33% of the total), followed by air bags with 7.
Has the 2007 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 2007 Mercedes-Benz CLK350 get?
The EPA rates the 2007 Mercedes-Benz CLK350 (CLK350, 3.5L 6-cyl) at 20 mpg combined, 17 city and 25 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 2007 Mercedes-Benz CLK350 reported?
Among the 36 complaints that include a mileage, the median is 68,500 miles and the middle half falls between 49,000 and 103,240 miles; 28% 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.