The Verdict
Worst problem area
Airbags & Restraints
Airbags & Restraints leads by volume: 13 of 37 complaints (35%) mention it.
Complaints filed rose from 34 in 2003 to 37 in 2004.
At a glance
- NHTSA complaints
- 37
- Recall campaigns
- 5
- EPA fuel cost per year
- $3,850–$4,850
- Combined MPG
- 16–20
Complaints by model year
Where owners report problems
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Cost, Fuel Economy & Complaint History
| Category | 2002 | 2003 | 2004 | 2005 | 2006 | vs. 2004 Subcompact Cars |
|---|---|---|---|---|---|---|
| Annual fuel cost ($) | 3,850–4,550 | 3,850–4,850 | 3,850–4,850 | 3,700–4,850 | 3,850–4,550 | |
| Combined MPG | 17–20 | 16–20 | 16–20 | 16–21 | 17–20 | |
| City / Highway MPG | 14–18 / 21–25 | 14–17 / 20–25 | 14–18 / 20–24 | 14–18 / 21–26 | 15–17 / 21–26 | |
| CO₂ tailpipe (g/mi) | 444–523 | 444–555 | 444–555 | 423–555 | 444–523 | |
| Complaints filed | 22 | 34 | 37 | 33 | 48 | |
| Recalls issued | 0 | 4 | 5 | 3 | 5 | |
| Crash-involved complaints | 1 | 5 | 3 | 0 | 2 | |
| Fire-involved complaints | 1 | 2 | 0 | 1 | 0 | |
| Injuries reported | 2 | 5 | 2 | 2 | 1 | |
| Deaths reported | 0 | 0 | 0 | 0 | 0 | |
| Configurations compared | 6 | 5 | 6 | 6 | 5 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2004 Mercedes-Benz CLK-Class have?
5 NHTSA recall campaigns as of Nov 7, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What is the most common complaint about the 2004 Mercedes-Benz CLK-Class?
Airbags & Restraints: 13 of 37 NHTSA complaints (35%) mention it.
What gas mileage does the 2004 Mercedes-Benz CLK-Class get?
EPA rates it 16–20 MPG combined across 6 configurations.
How much does it cost to fuel a 2004 Mercedes-Benz CLK-Class?
EPA estimates $3,850–$4,850 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (6)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic 5-spd | 6 | 3.2L | Rear-Wheel Drive | Premium | Subcompact Cars | 18 mpg (high) | 24 mpg (high) | 20 mpg (high) | $3,850 (low) | 444 g/mi (low) |
| Configuration 2 | Automatic 5-spd | 6 | 3.2L | Rear-Wheel Drive | Premium | Subcompact Cars | 18 mpg (high) | 24 mpg (high) | 20 mpg (high) | $3,850 (low) | 444 g/mi (low) |
| Configuration 3 | Automatic 5-spd | 8 | 5.0L | Rear-Wheel Drive | Premium | Subcompact Cars | 15 mpg | 21 mpg | 17 mpg | $4,550 | 523 g/mi |
| Configuration 4 | Automatic 5-spd | 8 | 5.0L | Rear-Wheel Drive | Premium | Subcompact Cars | 15 mpg | 21 mpg | 17 mpg | $4,550 | 523 g/mi |
| Configuration 5 | Automatic 5-spd | 8 | 5.4L | Rear-Wheel Drive | Premium | Subcompact Cars | 14 mpg (low) | 20 mpg (low) | 16 mpg (low) | $4,850 (high) | 555 g/mi (high) |
| Configuration 6 | Automatic 5-spd | 8 | 5.4L | Rear-Wheel Drive | Premium | Subcompact Cars | 14 mpg (low) | 20 mpg (low) | 16 mpg (low) | $4,850 (high) | 555 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 1 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 5 | 0 | 0 | 0 | 0 |
| Fuel System | 9 | 0 | 0 | 0 | 0 |
| Electrical | 4 | 0 | 0 | 0 | 0 |
| Brakes | 1 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 3 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 13 | 3 | 0 | 2 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 3 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 1 | 0 | 0 | 0 | 0 |
| Other | 2 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (5)
VISIBILITY:SUN/MOON ROOF ASSEMBLY
- Defect
- 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.
- Consequence
- A detached sunroof panel can become a road hazard, increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the sunroof panel as necessary, free of charge. Owner notification letters were mailed January 10, 2025. Owners may contact MBUSA customer service at 1-800-367-6372. This recall is an expansion of previous NHTSA recall number 22V-954. MBUSA's number for this recall is 2024120001/2/3.
VISIBILITY:SUN/MOON ROOF ASSEMBLY
- Defect
- 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.
- Consequence
- A detached sunroof panel may become a road hazard, increasing the risk of a crash.
- Remedy
- Dealers will inspect and replace the sunroof panel as necessary free of charge. Owner notification letters were mailed February 3, 2023. Owners may contact MBUSA customer service at 1-800-367-6372. This recall expands NHTSA recall number 19V-918. MBUSA's numbers for this recall are 2023010004, 2023010005, and 2023010006.
VISIBILITY:SUN/MOON ROOF ASSEMBLY
- Defect
- 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 visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V918-4126.pdf
- Consequence
- A detached glass panel can separate from the vehicle and become a road hazard, increasing the risk of a crash.
- Remedy
- MBUSA will notify owners, and dealers will inspect the glass panel bonding and replace the sliding roof, as necessary, free of charge. The recall began July 10, 2020. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2020040011.
ELECTRICAL SYSTEM
- Defect
- MERCEDES-BENZ IS RECALLING MY 2006-2008 M-CLASS, R-CLASS, MY 2005-2009 SLK-CLASS, MY 2005-2008 C-CLASS, MY 2003-2004 AND 2006-2008 CLK-CLASS, MY 2003-2008 E-CLASS, MY 2004 AND 2008 CL-CLASS, MY 2008 CLS-CLASS, MY 2004 AND 2007-2008 S-CLASS, MY 2003 G-CLASS, AND MY 2003-2004, 2006 AND 2009 SL-CLASS VEHICLES. A SOFTWARE CALIBRATION NUMBER (SCN) CODING RECEIVED ON THE AFFECTED VEHICLES DURING A RECENT WORKSHOP VISIT WAS INCORRECT. DEPENDING ON THE MODEL YEAR AND MODEL AFFECTED, THE RESULTS OF AN INCORRECT SCN CODING CAN AFFECT A NUMBER OF VEHICLE SAFETY AND EMISSION FUNCTIONS INCLUDING THE FOLLOWING TYPES OF FUNCTIONS: (1) THE FUEL GAUGE READINGS MAY BE INCORRECT; (2) A STUCK FUEL-LEVEL SENSOR MAY NOT BE DISPLAYED IN THE INSTRUMENT CLUSTER; (3) THE OBD SYSTEM MAY CAUSE THE CHECK ENGINE LIGHT TO ILLUMINATE INCORRECTLY; AND, (4) THE SPEEDOMETER MAY BE OUT OF TOLERANCE.
- Consequence
- IN THE EVENT OF A VEHICLE CRASH, THE ELECTRICAL FUEL PUMP MAY NOT RECEIVE A CRASH SIGNAL THAT IS REQUIRED FOR THE FUEL PUMP TO DISCONNECT AND PREVENT FUTURE FUEL DELIVERY AS DESIGNED.
- Remedy
- DEALERS WILL RECODE THE SCN FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 30, 2008. OWNERS MAY CONTACT MERCEDES-BENZ AT 1-800-367-6372.
SEAT BELTS
- Defect
- ON CERTAIN PASSENGER VEHICLES, SOME SEAT BELT BUCKLES MAY HAVE A BURR ON A METAL COMPONENT OF THE LOCKING MECHANISM. THE PRESENCE OF THE BURR COULD PREVENT THE SEAT BELT FROM LOCKING UNDER CERTAIN CIRCUMSTANCES.
- Consequence
- IN THE EVENT OF A CRASH, THE SEAT OCCUPANT MAY NOT BE PROPERLY RESTRAINED, INCREASING THE RISK OF INJURY.
- Remedy
- DEALERS WILL REPLACE THE SEAT BELTS. OWNER NOTIFICATION BEGAN ON DECEMBER 22, 2003. OWNERS SHOULD CONTACT MERCEDES-BENZ AT 1-800-367-6372.