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2003 Mercedes Benz Clk Class

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

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: 9 of 10 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.

  • Tires. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Equipment. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports1 fire reports2 injury reports

What owners actually said

10 reports
103,000 miles · Jan 6, 2014
Seat Belts

I HAVE HAD SEAT BELT TROUBLE. WHEN I FIRST BOUGHT THE CAR IT WAS WEAK TO RETRACT. THAN 9 MONTHS LATER IT GAVE OUT ON ME. I LOOKED INTO IT ONLINE AND IT TURNS OUT ALMOST ALL THESE VEHICLES HAVE THIS PROBLEM BEFORE 100,000 MILES. THERE ARE DOZENS OF FORUMS IN COMPLAINTS PLENTY OF PEOPLE SAYING THEY HAVE THE PROBLEM TO IN EACH. ITS…

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I HAVE HAD SEAT BELT TROUBLE. WHEN I FIRST BOUGHT THE CAR IT WAS WEAK TO RETRACT. THAN 9 MONTHS LATER IT GAVE OUT ON ME. I LOOKED INTO IT ONLINE AND IT TURNS OUT ALMOST ALL THESE VEHICLES HAVE THIS PROBLEM BEFORE 100,000 MILES. THERE ARE DOZENS OF FORUMS IN COMPLAINTS PLENTY OF PEOPLE SAYING THEY HAVE THE PROBLEM TO IN EACH. ITS A HAZARD THAT PEOPLE ARE DRIVING THESE CARS AND DECIDE THEY DON'T HAVE $500 TO BUY A SEAT BELT RETRACTOR PLUS $200 IN LABOR. ALSO IT OFTEN LEAVES NO WARNING THAT IT WON'T RETRACT. THERE WILL BE AN ACCIDENT ONE DAY AND SOMEONE WILL DIE AND ITS BECAUSE THEY DIDN'T HAVE THE MONEY TO FIX A SEATBELT THAT SHOULD BE WORKING. MINE GAVE OUT OF NO WHERE SO WHEN I WAS AWAY FROM HOME IF I WOULD OF GOTTEN INTO AN ACCIDENT THAT'S A PROBLEM WORTH FIXING. MY GIRLFRIEND IS AN EMT AND SHE SAYS THAT A SEAT BELT PLACED TO HIGH OR TOO LOW CAN CAUSE U TO BE CRUNCHED UNDER THE STEERING WHEEL OR FLY UP OVER INTO THE WINDSHIELD. SO ONE THAT GOES LOOSE ON YOU WHILE DRIVING WILL CAUSE SERIOUS INJURY BECAUSE JUST THE FACT THAT THERE IS MOVING SPACE WILL CAUSE YOU TO WIGGLE LOOSE FROM YOUR SEAT. *TR

NHTSA ODI #10558710

32,879 miles · May 11, 2011
Electrical System

TL* THE CONTACT OWNS A 2003 MERCEDES BENZ CLK430. THE CONTACT STATED THAT THE SPEEDOMETER AND RADIO WERE DEFECTIVE. HE MENTIONED THAT THE PIXELS ON BOTH WERE MISSING. THE DEALER WAS CONTACTED WHO STATED THAT THE INSTRUMENT CLUSTER WOULD NEED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE PROBLEM AND THE VEHICLE WAS N…

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TL* THE CONTACT OWNS A 2003 MERCEDES BENZ CLK430. THE CONTACT STATED THAT THE SPEEDOMETER AND RADIO WERE DEFECTIVE. HE MENTIONED THAT THE PIXELS ON BOTH WERE MISSING. THE DEALER WAS CONTACTED WHO STATED THAT THE INSTRUMENT CLUSTER WOULD NEED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE PROBLEM AND THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 32,879.

NHTSA ODI #10400021

57,528 miles · Aug 29, 2008
SteeringFire

TL*THE CONTACT OWNS A 2003 MERCEDES BENZ CLK 500. WHILE DRIVING APPROXIMATELY 10 MPH, THE CONTACT NOTICED FLAMES UNDERNEATH THE VEHICLE. THE VEHICLE WAS COMPLETELY DESTROYED AND TWO OTHER VEHICLES WERE MODERATELY DAMAGED BY THE FLAMES. HE NOTICED EXCESSIVE POWER STEERING FLUID ON THE GROUND WHERE THE VEHICLE WAS LOCATED. A P…

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TL*THE CONTACT OWNS A 2003 MERCEDES BENZ CLK 500. WHILE DRIVING APPROXIMATELY 10 MPH, THE CONTACT NOTICED FLAMES UNDERNEATH THE VEHICLE. THE VEHICLE WAS COMPLETELY DESTROYED AND TWO OTHER VEHICLES WERE MODERATELY DAMAGED BY THE FLAMES. HE NOTICED EXCESSIVE POWER STEERING FLUID ON THE GROUND WHERE THE VEHICLE WAS LOCATED. A POLICE OFFICER STATED THAT THE POWER STEERING PUMP OR THE LINES/FITTINGS/HOSES WERE THE CAUSES OF THE FAILURE. PRIOR TO THE FAILURE, THE VEHICLE WAS INSPECTED BY AN AUTHORIZED DEALER FOR "B" SERVICE, BUT NO FAILURE COULD BE DETERMINED. THE MANUFACTURER DID NOT ASSIST. THE CONTACT HAS PICTURES OF THE FAILURE AND A COPY OF THE REPORT FROM THE FIRE DEPARTMENT. THE FAILURE AND CURRENT MILEAGES WERE 57,528.

NHTSA ODI #10240228

24,000 miles · Jun 30, 2008
Power Train

TRANSMISSION FAILURE. RUSTED AND CORRODED TRANS AT 24,000 MILES CAUSED BY FAULTY MERCEDES VALEO RADIATOR. MERCEDES OWN STAR BULLETIN TELLS DEALERS ABOUT THIS ISSUE BUT MY DEALER DECIDED NOT TO CHECK IT OUT AND NOW MERCEDES AND DEALER ARE REFUSING TO HELP WHEN THIS IS A KNOWN PROBLEM ON MANY OF THEIR MODELS AND SHOULD BE A RECALL…

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TRANSMISSION FAILURE. RUSTED AND CORRODED TRANS AT 24,000 MILES CAUSED BY FAULTY MERCEDES VALEO RADIATOR. MERCEDES OWN STAR BULLETIN TELLS DEALERS ABOUT THIS ISSUE BUT MY DEALER DECIDED NOT TO CHECK IT OUT AND NOW MERCEDES AND DEALER ARE REFUSING TO HELP WHEN THIS IS A KNOWN PROBLEM ON MANY OF THEIR MODELS AND SHOULD BE A RECALL. *TR

NHTSA ODI #10232784

29,000 miles · May 14, 2007
Structure

TL*THE CONTACT OWNS A 2003 MERCEDES BENZ CLK 430. THE CONTACT NOTICED THAT THE BRACKETS THAT HOLD THE FRONT BUMPER WERE FAILING. THE FAILURE CAUSED THE TURN SIGNAL LIGHTS TO DETACH FROM THE BUMPER. THE DEALER DID NOT STATE THE CAUSE OF THE FAILURE. THE CURRENT MILEAGE IS 34,000 AND FAILURE MILEAGE WAS 29,000.

NHTSA ODI #10190664

72,000 miles · Mar 2, 2007
Tires

TL*- THE CONTACT STATED THAT THE 2003 MERCEDES CLK 500, HAD A BLOWOUT ON THE REAR PASSENGER TIRE. THIS HAPPENED ON A COLD CLEAR DAY WHILE DRIVING AT 65 MPH. HE TIRE DEALERSHIP INFORMED HER THAT THERE WAS NAIL IN THE TIRE, BUT NOT IN THE SECTION OF THE BLOWOUT. THE TIRE WAS A BRIDGESTONE POTENZA. THE TIRE WAS PURCHASED 21/2 M…

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TL*- THE CONTACT STATED THAT THE 2003 MERCEDES CLK 500, HAD A BLOWOUT ON THE REAR PASSENGER TIRE. THIS HAPPENED ON A COLD CLEAR DAY WHILE DRIVING AT 65 MPH. HE TIRE DEALERSHIP INFORMED HER THAT THERE WAS NAIL IN THE TIRE, BUT NOT IN THE SECTION OF THE BLOWOUT. THE TIRE WAS A BRIDGESTONE POTENZA. THE TIRE WAS PURCHASED 21/2 MONTHS AGO. THIS BLOWOUT SPLIT ON THE OPPOSITE SIDE OF THE NAIL. THE CONTACT WILL SUBMIT THE TIRE SIZE WITH THE HARD COPY AND SHE STILL HAD THE OLD TIRE THAT BLEW OUT. THE CONTACT STATED THAT THERE WAS NO WARRANTY FOR THE TIRE. THE VEHICLE CURRENTLY HAD 72000 MILES. *AK

NHTSA ODI #10184003

8,000 miles · Aug 24, 2004
Tires

WHILE DRIVING 60 MPH FRONT DRIVER SIDE TIRE BLEW OUT. NO IMPACT REPORTED. THEN, SIX MONTHS LATER THE SAME TIRE BLEW OUT AGAIN. *AK

NHTSA ODI #10089624

21,000 miles · Jun 29, 2004
Vehicle Speed ControlCrash

WHILE MAKING A LEFT TURN TO PULL INTO THE GARAGE, THE VEHICLE SUDDENLY ACCELERATED AT A HIGH SPEED. THE CONSUMER'S FOOT WAS ON THE BRAKE PEDAL WHEN THIS OCCURRED. THE CONSUMER APPLIED EXCESSIVE FORCE TO THE BRAKE PEDAL TO STOP THE VEHICLE FROM ACCELERATING, BUT IT FAILED TO DO SO. THE VEHICLE STOPPED ACCELERATING WHEN IT SM…

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WHILE MAKING A LEFT TURN TO PULL INTO THE GARAGE, THE VEHICLE SUDDENLY ACCELERATED AT A HIGH SPEED. THE CONSUMER'S FOOT WAS ON THE BRAKE PEDAL WHEN THIS OCCURRED. THE CONSUMER APPLIED EXCESSIVE FORCE TO THE BRAKE PEDAL TO STOP THE VEHICLE FROM ACCELERATING, BUT IT FAILED TO DO SO. THE VEHICLE STOPPED ACCELERATING WHEN IT SMASHED INTO THE GARAGE WALL. THE FACTORY REPRESENTATIVE CAME OUT TO INSPECT THE VEHICLE, BUT INDICATED THAT NOTHING WAS WRONG ALTHOUGH THERE WAS A 3 FEET LONG BRAKE MARK ON THE GARAGE FLOOR. *AK *SC *JB

NHTSA ODI #10073868

Mileage unknown · Oct 11, 2003
Exterior LightingInjury

NEW HID CAR LIGHTS ARE TO BRIGHT. THESE NEW LIGHTS HAVE THE SAME EFFECT AS HAVING HIGH BEAMS ON ALL THE TIME. HID LIGHTS BLIND ONCOMING DRIVERS. *LA

NHTSA ODI #10041631

1,100 miles · Sep 13, 2002
EquipmentInjury

WHEN THE CONSUMER JACKED UP THE VEHICLE, THE JACK FAILED TO REMAIN STURDY AND THE VEHICLE HAD FELL TO THE GROUND. NLM SCC

NHTSA ODI #8018653

Official recalls

1

08V303000 · Electrical System

Jul 7, 2008

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 & remedy

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.

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.