NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
54 reports144,000 miles · Oct 3, 2019
Engine And Engine CoolingFuel/propulsion System
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE DRIVING 60 MPH, THE ODOR OF FUMES EMITTED THROUGH THE VEHICLE AND MADE THE CONTACT NAUSEOUS. MEDICAL ATTENTION WAS NOT RECEIVED. THE CONTACT CALLED OLYMPIA PRE OWNED AUTO (1806 WAKE FOREST RD, RALEIGH, NC 27608, (919) 301-8551) AND WAS INFORMED THAT THEY WOULD CALL HER BACK. …
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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE DRIVING 60 MPH, THE ODOR OF FUMES EMITTED THROUGH THE VEHICLE AND MADE THE CONTACT NAUSEOUS. MEDICAL ATTENTION WAS NOT RECEIVED. THE CONTACT CALLED OLYMPIA PRE OWNED AUTO (1806 WAKE FOREST RD, RALEIGH, NC 27608, (919) 301-8551) AND WAS INFORMED THAT THEY WOULD CALL HER BACK. THE VEHICLE WAS NOT TAKEN TO A MERCEDES-BENZ DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 144,000.
NHTSA ODI #11265870
100,000 miles · Apr 27, 2019
Power Train
MY 2007 MB S550 BASE MODEL STALLED AS I WAS MERGING ON TO THE EXPRESSWAY IN HEAVY TRAFFIC. AFTER SITTING ON SIDE OF THE ROAD FOR 20MINS, I STARTED THE CAR AND IT WAS MAKING A WHINING NOISE AND WHEN I ACCELERATE THE NOISE GETS LOUDER. I DROVE THE CAR TO THE NEAREST MERCEDES-BENZ DEALERSHIP. I WAS TOLD THAT THE TRANSMISSION NEEDS …
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MY 2007 MB S550 BASE MODEL STALLED AS I WAS MERGING ON TO THE EXPRESSWAY IN HEAVY TRAFFIC. AFTER SITTING ON SIDE OF THE ROAD FOR 20MINS, I STARTED THE CAR AND IT WAS MAKING A WHINING NOISE AND WHEN I ACCELERATE THE NOISE GETS LOUDER. I DROVE THE CAR TO THE NEAREST MERCEDES-BENZ DEALERSHIP. I WAS TOLD THAT THE TRANSMISSION NEEDS TO BE REPLACED. THE CAR HAS BEEN SERVICED WITH MERCEDES AND ONLY HAS 100K MILES. THIS WILL COST $7,800.00 THE SERVICE GUY STATED THAT THIS SHOULD NOT BE HAPPENING ON THIS CAR BUT UNFORTUNATELY HE STATED THAT HE HAS SEEN THIS BEFORE.
NHTSA ODI #11204093
51,500 miles · Dec 26, 2018
Fuel/propulsion System
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE DEPRESSING THE ACCELERATOR PEDAL, THE VEHICLE LEAKED FUEL. THERE WAS A STRONG ODOR OF FUEL INSIDE AND OUTSIDE OF THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS CURRENTLY AT KNOXVILLE MERCEDES-BENZ (10131 PARKSIDE DR, KNOXVILLE, TN 37922, (865) 777-…
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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE DEPRESSING THE ACCELERATOR PEDAL, THE VEHICLE LEAKED FUEL. THERE WAS A STRONG ODOR OF FUEL INSIDE AND OUTSIDE OF THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS CURRENTLY AT KNOXVILLE MERCEDES-BENZ (10131 PARKSIDE DR, KNOXVILLE, TN 37922, (865) 777-2222) AWAITING DIAGNOSTIC TESTING. THE VEHICLE WAS NOT REPAIRED. THE MANFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 51,500.
NHTSA ODI #11163543
109,234 miles · Oct 30, 2018
Electrical SystemEngineSuspension
ERROR CODE P0019 CAM SENSOR BANK B, MANUFACTURERS USED DEFECTIVE PART THAT TIMING SPROCKET TEETH HAVE ERODED DUE TO DEFECTIVE PARTS USED WHICH HAVE AND WILL CAUSE VEHICLE TO STAHL WHILE RUNNING. BOTH FRONT STRUTS WEAR ON ALL MODELS THAT CAUSE DRIVING CONDITIONS THAT CAN CAUSE DEATH WHILE DRIVER EXCELRATION OR STOPPING CAUSE
NHTSA ODI #11144132
55,000 miles · Aug 7, 2018
Engine
BALANCE SHAFT/IDLE GEAR MATERIAL WORE OUT CAUSING TIMING CHAIN TO BECOME LOOSE AND ENGINE TO JUMP TIMING WHILE DRIVING. ENGINE LOCKED UP AND DIED WHILE GOING DOWN THE HIGHWAY! EXPENSIVE REPAIR THAT MERCEDES BENZ KNOWS ABOUT!! THEY HAVE AN INTERNAL MEMO WITH A LIST OF VIN NUMBERS THAT HAVE THE FAULTY IDLER GEAR THAT WEARS OUT PR…
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BALANCE SHAFT/IDLE GEAR MATERIAL WORE OUT CAUSING TIMING CHAIN TO BECOME LOOSE AND ENGINE TO JUMP TIMING WHILE DRIVING. ENGINE LOCKED UP AND DIED WHILE GOING DOWN THE HIGHWAY! EXPENSIVE REPAIR THAT MERCEDES BENZ KNOWS ABOUT!! THEY HAVE AN INTERNAL MEMO WITH A LIST OF VIN NUMBERS THAT HAVE THE FAULTY IDLER GEAR THAT WEARS OUT PREMATURELY BUT WON'T RECALL THE PRODUCT BECAUSE IT USUALLY WEARS OUT JUST AFTER WARRANTEE PERIOD! SOMETHING MUST BE DONE!
NHTSA ODI #11118429
Mileage unknown · May 29, 2018
Engine
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE DRIVING 10 MPH, THE ENGINE STALLED AND THE VEHICLE FAILED TO RESTART. THE CONTACT PLANNED TO HAVE THE VEHICLE TOWED TO ALEXANDRIA MERCEDES-BENZ (200 S PICKETT, ALEXANDRIA, VA 22304, (703) 341-2100) FOR DIAGNOSTIC TESTING AND REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED OF THE F…
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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE DRIVING 10 MPH, THE ENGINE STALLED AND THE VEHICLE FAILED TO RESTART. THE CONTACT PLANNED TO HAVE THE VEHICLE TOWED TO ALEXANDRIA MERCEDES-BENZ (200 S PICKETT, ALEXANDRIA, VA 22304, (703) 341-2100) FOR DIAGNOSTIC TESTING AND REPAIRS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE AND VIN WERE NOT AVAILABLE. *TT *TR
NHTSA ODI #11098481
Mileage unknown · Apr 1, 2018
Air Bags
TAKATA INFLATORS RECALL ALERTED ME TO HAVE MY CAR EXSAMED.AS I USE MY CAR EVERY DAY.
NHTSA ODI #11082391
41,000 miles · May 30, 2017
Suspension
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. AFTER PRESSING THE BUTTON TO LIFT THE VEHICLE'S SUSPENSION, A MALFUNCTION WARNING INDICATOR SUDDENLY ILLUMINATED. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (MERCEDES BENZ OF SOUTH ORLANDO LOCATED IN ORLANDO, FLORIDA) WHERE IT WAS DIAGNOSED THAT THE AIR SUSPENSION SYSTEM FAILED AND …
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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. AFTER PRESSING THE BUTTON TO LIFT THE VEHICLE'S SUSPENSION, A MALFUNCTION WARNING INDICATOR SUDDENLY ILLUMINATED. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER (MERCEDES BENZ OF SOUTH ORLANDO LOCATED IN ORLANDO, FLORIDA) WHERE IT WAS DIAGNOSED THAT THE AIR SUSPENSION SYSTEM FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 41,000. UPDATED 08/09/17*LJ *CN
NHTSA ODI #10992282
128,000 miles · Mar 10, 2017
Fuel/propulsion System
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. THE CONTACT STATED THAT THERE WAS AN ABNORMAL FUEL ODOR COMING FROM THE REAR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL SENDING UNIT WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WA…
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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. THE CONTACT STATED THAT THERE WAS AN ABNORMAL FUEL ODOR COMING FROM THE REAR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL SENDING UNIT WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 128,000.
NHTSA ODI #10960040
70,000 miles · Jan 25, 2017
Engine
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE AT A STOP LIGHT, THE VEHICLE SHUT DOWN AND LOST ALL POWER. THE VEHICLE RESTARTED AND WAS TAKEN TO A DEALER WHO WAS UNABLE TO DIAGNOSE THE FAILURE. THE FAILURE RECURRED. THE CONTACT CALLED THE DEALER AND WAS ADVISED TO TOW THE VEHICLE TO THE SHOP. THE DEALER WAS UNABLE TO DIAG…
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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ S550. WHILE AT A STOP LIGHT, THE VEHICLE SHUT DOWN AND LOST ALL POWER. THE VEHICLE RESTARTED AND WAS TAKEN TO A DEALER WHO WAS UNABLE TO DIAGNOSE THE FAILURE. THE FAILURE RECURRED. THE CONTACT CALLED THE DEALER AND WAS ADVISED TO TOW THE VEHICLE TO THE SHOP. THE DEALER WAS UNABLE TO DIAGNOSE THE FAILURE, BUT KEPT THE VEHICLE FOR FURTHER OBSERVATION. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 70,000. THE VIN WAS NOT PROVIDED.
NHTSA ODI #10947608