Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 12 of 14 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
Fuel/propulsion System. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Seat Belts. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Fuel System, Gasoline. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
14 reports
53,900 miles · Jan 28, 2012
Fuel System, Gasoline
STRONG SMELL OF GAS FUMES AT REAR WHEEL WELL AREA WHEN FUEL TANK IS FILLED. DEALER FOUND FUEL LEAKING FROM THE TOP OF THE FUEL SENDING UNIT AND WAS FILLING THE RECESSED AREA ON TOP OF FUEL TANK WITH GAS. THE DEALER SAID THAT THE PLASTIC SENDING UNIT HAS A SMALL CRACK OR PIN HOLE AND WOULD HAVE TO BE REPLACED. I FOUND ON THE MERC…
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STRONG SMELL OF GAS FUMES AT REAR WHEEL WELL AREA WHEN FUEL TANK IS FILLED. DEALER FOUND FUEL LEAKING FROM THE TOP OF THE FUEL SENDING UNIT AND WAS FILLING THE RECESSED AREA ON TOP OF FUEL TANK WITH GAS. THE DEALER SAID THAT THE PLASTIC SENDING UNIT HAS A SMALL CRACK OR PIN HOLE AND WOULD HAVE TO BE REPLACED. I FOUND ON THE MERCEDES BENZ USER BLOG THAT OTHER CLK OWNERS HAD SIMILAR ISSUES. I CONTACTED MERCEDES BENZ USA AND FILED A COMPLAINT STATING THIS IS A FIRE HAZARD. THEY SAID THAT THEY COULD NOT ASSIST ME WITH THIS PROBLEM SINCE THE VEHICLE OUT OF WARRANTY. I FEEL THIS IS A SAFETY ISSUE AND SHOULD BE TAKEN CARE OF BY MERCEDES BENZ. *TR
NHTSA ODI #10445717
76,000 miles · Feb 7, 2011
Power Train
I WAS DRIVING ON A BUSY STREET WHEN THE MERCEDES BENZ STARTED JERKING. AFTER STOPPING AT A RED LIGHT, I COULD NOT GET THE CAR TO ACCELERATE PAST 2ND GEAR; THUS, I WAS DRIVING ON A STREET WITH A 45 MPH SPEED LIMIT AT LESS THAN 20 MPH. THEN, AS I WAS CROSSING AN INTERSECTION, THE CAR FINALLY STALLED. LUCKILY, BECAUSE IT WAS AN …
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I WAS DRIVING ON A BUSY STREET WHEN THE MERCEDES BENZ STARTED JERKING. AFTER STOPPING AT A RED LIGHT, I COULD NOT GET THE CAR TO ACCELERATE PAST 2ND GEAR; THUS, I WAS DRIVING ON A STREET WITH A 45 MPH SPEED LIMIT AT LESS THAN 20 MPH. THEN, AS I WAS CROSSING AN INTERSECTION, THE CAR FINALLY STALLED. LUCKILY, BECAUSE IT WAS AN INTERSECTION, THE ONCOMING CARS MANEUVERED AROUND ME. AFTER TURNING THE IGNITION, IT STARTED UP AGAIN, AND I WAS ABLE TO DRIVE IT INTO A PARKING LOT (ONCE AGAIN, NOT PAST 2ND GEAR). I TOWED THE VEHICLE TO THE DEALERSHIP, AND THEY HAVE INFORMED ME THAT THE RADIATOR LEAKED FLUID INTO THE TRANSMISSION; AS A RESULT, THE TRANSMISSION, THE TRANSMISSION CONTROL UNIT, AND THE TORQUE CONVERTER ARE ALL DAMAGED AND NEEDS REPLACEMENT. I BELIEVE THAT THE FAULT LIES ON MERCEDES TO REPLACE THE DAMAGED PARTS DUE TO THEIR KNOWLEDGE THAT THERE WAS A POTENTIALLY FAULTY RADIATOR INSTALLED IN THEIR VEHICLES. IT IS DANGEROUS TO DRIVE ON A BUSY STREET OR HIGHWAY ONLY TO HAVE THE CAR SUDDENLY STOP OPERATING. I HAD NO IDEA THAT THERE WAS POTENTIALLY SOMETHING WRONG WITH THE CAR UNTIL THIS INCIDENT. I HAVE RESEARCHED THIS ISSUE SINCE THE INCIDENT AND HAVE DISCOVERED THAT THIS HAS HAPPENED TO NUMEROUS PEOPLE. PLEASE HELP US. *TR
NHTSA ODI #10381946
70,000 miles · Apr 28, 2010
Fuel System, Gasoline
TL*THE CONTACT OWNS A 2004 MERCEDES BENZ CLK500. THE VEHICLE WAS PARKED IN A GARAGE WHEN THE CONTACT SMELLED FUEL AND NOTICED THAT THE FUEL PUMP WAS LEAKING FUEL. THE FUEL PUMP WAS LEAKING UNDERNEATH THE REAR SEAT WHICH WAS WHERE ITS LOCATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO REPLACED THE FUEL PUMP ON BOTH TH…
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TL*THE CONTACT OWNS A 2004 MERCEDES BENZ CLK500. THE VEHICLE WAS PARKED IN A GARAGE WHEN THE CONTACT SMELLED FUEL AND NOTICED THAT THE FUEL PUMP WAS LEAKING FUEL. THE FUEL PUMP WAS LEAKING UNDERNEATH THE REAR SEAT WHICH WAS WHERE ITS LOCATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO REPLACED THE FUEL PUMP ON BOTH THE LEFT AND RIGHT SIDE. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 70,000.
NHTSA ODI #10327902
48,380 miles · May 8, 2009
Electronic Stability Control (esc)
MY 2004 MBZ 500 CABRIOLET STOPPED RUNNING IN THE MIDDLE OF THE ROAD WITHOUT WARNING. IT HAS ALWAYS BEEN SERVICED REGULARLY AND THERE WERE NO PROBLEMS. IT WAS IN RUSH HOUR TRAFFIC IN IRVINE CA. TOWED TO AUTHORIZED REPAIR SHOP- CRANKSHAFT ELECTRONIC SENSOR SHUT VEHICLE DOWN. COULD HAVE CAUSED A MAJOR ACCIDENT. LESS THAN 48K MILES …
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MY 2004 MBZ 500 CABRIOLET STOPPED RUNNING IN THE MIDDLE OF THE ROAD WITHOUT WARNING. IT HAS ALWAYS BEEN SERVICED REGULARLY AND THERE WERE NO PROBLEMS. IT WAS IN RUSH HOUR TRAFFIC IN IRVINE CA. TOWED TO AUTHORIZED REPAIR SHOP- CRANKSHAFT ELECTRONIC SENSOR SHUT VEHICLE DOWN. COULD HAVE CAUSED A MAJOR ACCIDENT. LESS THAN 48K MILES ON CAR. *TR
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 & remedy
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.
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 & remedy
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.
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 & remedy
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.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0
No exact-year investigations in this snapshot.
2004 Mercedes Benz CLK500 Problems, Complaints & Recalls | Skip That Year
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