2003 Mercedes-Benz 500 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2003 Mercedes-Benz 500, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Fuel system436.4%
- Suspension327.3%
- Brakes19.1%
- Electrical19.1%
- Seat belts19.1%
- Tires & wheels19.1%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
IN JUNE 2012 THE CAR DID NOT PASS INSPECTION AND WE WERE TOLD WE NEEDED A NEW GAS CAP. WE GOT A GAS CAP AND IT PASSED INSPECTION. SINCE THEN WE HAVE HAD A STRONG FUEL SMELL WHEN THE GAS TANK IS FILLED COMPLETELY. IF WE ONLY FILL THE GAS TANK ABOUT 3/4 OR LESS, THERE IS NO GAS SMELL. WE RECENTLY HAD THE CAR SERVICED AND THE MECHANIC TOLD US THE GAS CAP NEEDED TO BE REPLACED AND A SEAL/CAP IN AN OVERFILL TANK UNDER THE REAR SEAT WAS LOOSE. WE REPLACED THE GAS CAP AGAIN AND THE CAP TO THE OVERFILL TANK WAS TIGHTENED. WE FILLED THE TANK FULL AND HAVE A VERY STRONG SMELL OF GAS SO THOSE REPAIRS DID NOT FIX THE PROBLEM. IN A REVIEW OF SOME INTERNET RESEARCH, WE SAW THAT NHTSA AND MERCEDES-BENZ WERE JOINTLY INVESTIGATING A FUEL LEAKAGE IN THE UPPER PART OF THE GAS TANK FOR E-CLASS MERCEDES PRODUCED BETWEEN 2003 - 2008. WE THINK WE HAVE ONE OF THOSE FUEL LEAKS. WE WANT TO SELL THE CAR BECAUSE WE HAVE PURCHASED ANOTHER VEHICLE BUT DO NOT WANT TO SELL IT UNTIL WE HAVE FIXED THIS FUEL PROBLEM. *TR
BROUGHT CAR IN FOR SERVICE AND ANNUAL STATE INSPECTION STICKER, WAS TOLD THAT THE GAS TANK NEEDED TO BE REPLACED DUE TO MALFUNCTION THAT ALLOWED GAS VAPORS TO ESCAPE FROM TANK. WAS TOLD THAT IT WAS NO FAULT OF MY OWN BUT TANK HAD TO BE REPLACED TO PASS INSPECTION!!! THE CAR WAS NOT MISUSED OR DRIVEN OFF ROAD OR ABUSED, OBVIOUSLY THIS WAS A DEFECTIVE PART MERCEDES PUT IN THEIR CARS AND THEY CHOSE NOT TO STAND BEHIND THEIR PRODUCT. CHARGED $1,400 FOR REPAIRS. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
WAS GOING DOWN ROAD AND FRONT STRUT BOTTOMED OUT BECAUSE OF AIR BELLOW FAILURE IN AIR LEVELING SYSTEM .MANY PEOPLE HAVE HAD SAME PROBLEM! *TR
WHILE DRIVING THE LOWER BALL JOINTS ON THE PASSENGER SIDE SNAPPED IN HALF, CAUSING A COLLISION. CONSUMER COMPLAINED TO THE DEALER THAT THE FRONT END FELT LOOSE WHILE DRIVING. VEHICLE WAS TAKEN TO THE DEALERSHIP THREE TIMES. THERE WERE NO INJURIES.*AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
I WAS DRIVING MY 2003 MERCEDES E500 DOWN A HILL WHEN THE BRAKES COMPLETELY FAILED. THIS OCCURRED SUDDENLY AND SIMULTANEOUSLY BY DASHBOARD LIT UP WITH WARNINGS AND ADMONISHING TO PULL OVER AND NOT DRIVE. I WAS AMAZED TO FIND OUT THAT MERCEDES HAS A 'PROGRAM' FOR THIS FAILURE BUT DOES NOT TELL CAR OWNERS ABOUT IT UNTIL IT OCCURS. I WAS ABLE TO STOP THE CAR WITH THE EMERGENCY BRAKE BUT I HAD NO OTHER BRAKING CAPABILITY. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
WHILE PARKED THE BATTERY DIED. AS A RESULT, THE VEHICLE WOULD NOT UNLOCK. *AK THE VEHICLE HAD MULTIPLE ELECTRICAL SYSTEM PROBLEMS. *NM
Too few reports in this category for a page of its own — they appear in the full complaint list.
Seat belts
Reports naming seat belts, buckles, retractors and pretensioners.
From owner reports, verbatim
THE FRONT PASSENGER SEAT BELT DOES NOT EXTEND OUT AND DOES NOT WORK PROPERLY DURING HOT WEATHER. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
ON 2/13/04 MY WIFE WHO IS 8 MONTHS PREGNANT WAS GOING HOME AFTER A DOCTORS APPOINTMENT WHEN SHE EXPERIENCED A FLAT TIRE IN HER 2003 MERCEDES C240 ON I 75 GOING SOUTH NEAR ARVIDA PARKWAY EXIT, SHE IMMEDIATELY PULLED OFF TO THE SIDE OF THE RODE AND PROCEDED TO CALL ROADSIDE ASSISTANCE FROM MERCEDES, THEY ADVISED HER NOT TO MOVE THE CAR ANY FURTHER AND THEY WOULD DISPATCH SOMEONE IN ABOUT AN HOUR. BEING A HEAVILY TRAVELED ROAD SHE WAS CONCERNED DUE TO THE AMOUNT OF TRAFFIC AND HER BEING RIGHT ON THE SHOULDER, SHE THEN CONTACTED ME AS I WAS ON MY WAY TO WORK LEAVING THE SAME DOCTORS APPT, I PROCEDED TO HEAD TO HER ASSISTRANCE AND ADVISED HER TO PULL FURTHER OFF THE SHOULDER INTO THE GRASS WHICH SHE DID, I ARRIVED TO HER LOCATION APPROXIMATLY 45 MIN LATER AND THERE WAS STILL NO ASSISTANCE THERE, ABOUT 30 MIN AFTER I ARRIVED ONE OF THE I75 ROAD RANGERS ARRIVED AND HELPED CHANGE THE TIRE WHICH WAS A MICHELEN MXV4 PLUS RADIAL XSE4, AFTER THE TIRE WAS REPLACED WE WERE PROCEDING TO THE MERCEDES DEALER IN PEMBROKE PINE TO GET THE TIRE REPLACED WHEN MY WIFE PHONED ME THAT THE CAR WAS NOT RIDING CORRECTLY AND PULLING TO THE RIGHT , BEFORE SHE COULD GET TO THE NEXT EXIT MAYBE A HALF A MILE THE OPPISITE TIRE DISINIGRATED WITH THE WHOLE SIDE OF THE TIRE COMMING OFF, WE AGAIN PULLED OVER AND CALLED MERCEDES AGAIN AND WAS TOLD SINCE WE CANCELED THE FIRST CALL WE WOULD HAVE TO WAIT OVER AN HOUR AND WOULD HAVE TO PAY TO TOW THE CAR SINCE WE HAD NO SPARE WHICH WAS USED EARILER. WE THEN LEFT THE CAR AND PROCEDED TO THE PEMBROKE PINES MERCEDES DEALER WHERE THEY ARRANGED TO TOW THE CAR, WE WENT BACK AND WAITED ANOTHER HOUR AND A HALF FOR THE TOW TRUCK, ONCE THE CAR ARRIVED AT MERCEDES THE SERVICE ADVISOR STATEED MANY POSSIBLE REASONS FOR THE PROBLEM INCLUDING UNDERINFLATION AND POSSIBLY VANDILISM WHICH I REALLY DOUBT.*AK
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .