Total Complaints
22 filings
MERCEDES-BENZ S550 · model year
22 NHTSA complaints, 1 crash report for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2010MERCEDES-BENZS550 carries 22 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2010 S550 is suspension with 6 filings, followed by steering (5) and fuel system, gasoline (2). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 2010 S550. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
22 filings
Crashes Reported
1 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| SUSPENSION | 6 |
| STEERING | 5 |
| FUEL SYSTEM, GASOLINE | 2 |
| FUEL/PROPULSION SYSTEM | 2 |
| UNKNOWN OR OTHER | 1 |
| ELECTRONIC STABILITY CONTROL (ESC) | 1 |
| STRUCTURE:BODY:DOOR | 1 |
| AIR BAGS | 1 |
| TIRES | 1 |
| FUEL SYSTEM, OTHER:FUEL FILTER | 1 |
| POWER TRAIN | 1 |
FUALTY DRIVE SHAFT PROBLEM
FUALTY DRIVE SHAFT PROBLEM
The contact owns a 2010 Mercedes-Benz S550. The contact stated that after refueling, there was abnormal fuel odor present inside and outside the vehicle. The cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The failure mileage was 110,000. The contact stated that the gas leak was caused by a cracked fuel filter housing. The fuel filter and the fuel pump was replaced. The contact is requesting a full reimbursement of the cost of repairs.
Mileage: 110,000
Vehicle garaged in storage for summer. Upon returning strong odor of gasoline was detected. Reluctantly drove to dealership and prognoses was determined that (fuel pump strainer) had malfunction thus soaking the entire rear passenger compartment and seat cushion. Upon investigation Mercedes has had a problem in other C -models and has extended warranties for 15 additional years for this same problem. This vehicle is a S- 550 model. Dealership has denied any responsibility. I think the vehicle is unsafe at ANY SPEED. Never should fuel enter the passenger compartment of any vehicle. Video on file at dealership.
UPON REFULING MY AUTOMOBILE FULL I COULD SMELL A STRONG ODOR OF GAS FUMES. EARLIER THAT DAY I HAD AN IMPACT OF MY TIRE OVER A CURB. GAS FUMES COULD BE SMELLED NOT SO MUCH ON THE OUTSIDE OF THE AUTO BUT INSIDE WITHOUT ABATEMENT. UPON INSPECTION BY MERCEDES BENZ OF STOCKTON CA IT WAS DETERMINED A FUEL LEAK WAS PRESENT WITH THE CUSHION THAT SITS ON TOP OF THE FUEL SYSTEM WAS SOILED/STURATED UNDER THE REAR PASSENGER SEAT OF THE CAR. PICTURES TAKEN SUGGEST IT HAD BEEN WAS ONGOING POSSIBLELY FOR YEARS. THEY SUGGESTED HEAT CONTRIBUTED TO THE UNIT-SEAL CORROSION AND ITS SURROUNDINGS. IT IS NOT CLEAR WHY MY RIGHT REAR IMPACT WITH A CURB BROUGHT THIS ALL TO MY ATTENTION. HIGHLY COMBUSTIBLE SITUATION THAT WAS CLEARLY NOT DETECTED WITCH IS NOT COMPLETELY UNDERSTOOD THE SAME DAY I HAVE AN IMPACT TO THE RIGHT REAR TIRE JUMPING A CURB THEN GOING BACK OVER IT TO UNLODGE THE TIRE & ROCKER MOLDING FROM THE CURB & REFUEL I SMELL GAS FUMES. HIGHLY DANGEROUS USING PLASTIC SECURE GAS EXCHANGES ON SO
TL* THE CONTACT OWNS A 2010 MERCEDES-BENZ S550. THE CONTACT STATED THAT UPON REFUELING THE VEHICLE, A STRONG FUEL ODOR WAS DETECTED IN THE INTERIOR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GEORGETOWN (7401 S IH-35, GEORGETOWN, TX 78626, 512-930-6150) WHERE THE FAILURE WAS DIAGNOSED AS A FUEL LEAK FROM THE FILTER ASSEMBLY UNDER THE REAR SEAT. THE CONTACT ALSO STATED THAT THE DEALER INFORMED HIM THAT THE UNDERCARRIAGE WAS DAMAGED WHICH LEAD TO THE FUEL LEAK. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND A CASE WAS OPENED. THE FAILURE MILEAGE WAS APPROXIMATELY 110,000.*DT*JB*DT*JB THE CONSUMER STATED THE REPAIRS WERE MADE AT THE OWNER'S EXPENSE.
Mileage: 110,000
TL* THE CONTACT OWNS A 2010 MERCEDES-BENZ S550. THE CONTACT STATED THAT UPON REFUELING THE VEHICLE, A STRONG FUEL ODOR WAS DETECTED IN THE INTERIOR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GEORGETOWN (7401 S IH-35, GEORGETOWN, TX 78626, 512-930-6150) WHERE THE FAILURE WAS DIAGNOSED AS A FUEL LEAK FROM THE FILTER ASSEMBLY UNDER THE REAR SEAT. THE CONTACT ALSO STATED THAT THE DEALER INFORMED HIM THAT THE UNDERCARRIAGE WAS DAMAGED WHICH LEAD TO THE FUEL LEAK. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND A CASE WAS OPENED. THE FAILURE MILEAGE WAS APPROXIMATELY 110,000.*DT*JB*DT*JB THE CONSUMER STATED THE REPAIRS WERE MADE AT THE OWNER'S EXPENSE.
Mileage: 110,000
LIONHART LH5 285/25/22 H95 LOAD RATING TIRE DOT NO. PT25MBT5C AFTER SHIPMENT ARRIVED AND EQUIPMENT INSTALLED I NOTICED THAT THE LOAD RATING WAS NOT CORRECT FOR THE SAID VEHICLE. TIRE WILL FAIL, LOAD RATING IS NOT SUFFICIENT . IT ONLY PROVIDES 95 WHEN 102 IS NEEDED. AT THIS TIME NOTHING HAS BEEN DONE, COMPANY (SELLER) STATED THAT ALTHOUGH ITS NOT CORRECT, BUT IT FITS. 2010 MERCEDES BENZ S550 TIRE RATING VIN [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
Mileage: 95,000
THE DASHBORD MESSAGE READS THAT THE FRONT SRS MALFUNCTION. THE CAR WAS STATIONARY.
TL* THE CONTACT OWNS A 2010 MERCEDES-BENZ S550. THE CONTACT STATED THAT THE VEHICLE WAS DRIVEN THE NIGHT BEFORE AND PARKED IN THE GARAGE. THE FOLLOWING MORNING, THE PASSENGER SIDE SUSPENSION HAD FALLEN TO THE GROUND. THE VEHICLE WAS TOWED TO THE DEALER (MERCEDES-BENZ OF THE WOODLANDS, 16917 INTERSTATE 45 SOUTH, WOODLAND TEXAS 77385) WHERE IT WAS DIAGNOSED THAT THE SUSPENSION HAD TO BE RE-CALIBRATED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 82,000.
Mileage: 82,000
WIFE DRIVING 45 MPH ON 4 LANE HWWY RIGHT FRONT OF CAR FALLS DOWN ON TIRE PULLED OFF ROAD SOON AS POSSIBILE RIGHT FRONT AIR STRUT FAILED RUINED TIRE DAMAGED FENDER LUCKLY ONLY 45 MPH NOT 80 MPH ON I-75 INTERSTATE OR 130 MPH ON AUTOBON IN GERMANY OR SOMEBODY COULD HAVE BEEN DEAD
Mileage: 90,000
MY S550 WHEN DRIVING WOULD SUDDENLY GIVE A MALFUNCTION SIGNAL. I TOOK IT TO THE DEALER, SERVICE REPLACED THE 2 FRONT STRUTS. NOW THE CALL WILL GIVE A SIGNAL, RED LETTERS, "DO NOT MOVE CAR" AND THE ENTIRE STRUT SYSTEM WILL STOP WORKING AND THE CAR BODY IS VIRTUALLY SITTING ATOP THE TIRES. THIS AFTER REPLACING THE 2 FRONT STRUTS! THE DEALERSHIP SEEMS TO BE AT A LOSS AND I CAN'T EVEN GET THEM TO RETURN MY CALLS. I DON'T THINK IT IS A STRUT PROBLEM BUT A COMPUTER GLITCH. I DON'T THINK IT WAS NECESSARY TO PAY FOR THE STRUT REPLACEMENT. I WOULD LIKE MY CAR FIXED OR A REFUND.
Mileage: 139,000
TL* THE CONTACT OWNS A 2010 MERCEDES BENZ S550. THE CONTACT STATED THAT THE GEAR SHIFT ON THE STEERING COLUMN FRACTURED. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS AWAITING A DIAGNOSTIC. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 61,599. UPDATED 01/12/16*LJ UPDATED 04/18/18*JB *TR
Mileage: 61,599
MY WIFE WAS DRIVING THIS VEHICLE WHEN SUDDENLY THE STEERING LOCKED UP AND ALMOST CAUSED HER TO CRASH. WE THEN TOOK THE VEHICLE TO HOUSE OF IMPORTS MERCEDES IN BUENA PARK TO INSPECT THE VEHICLE. APPARENTLY THE STEERING COLUMN WAS BROKEN AND THEY COULD NOT EXPLAIN HOW IT HAPPEN. I DID SOME RESEARCH AND SEVERAL OTHER PEOPLE HAVE FILE A COMPLAINT AND MERCEDES DENIES THE PROBLEM. THIS IS A SERIOUS ISSUE AND I RECOMMEND A RECALL ON THERE VEHICLES BEFORE SOMEONE GETS KILLED. WE WERE VERY FORTUNATE IT HAPPENED ON A BACK ROAD AND NOT ON FREEWAY...UPDATED 11/06/14*BF UPDATED 7/15/2015*JS
Mileage: 57,800
MY WIFE WAS DRIVING THIS VEHICLE WHEN SUDDENLY THE STEERING LOCKED UP AND ALMOST CAUSED HER TO CRASH. WE THEN TOOK THE VEHICLE TO HOUSE OF IMPORTS MERCEDES IN BUENA PARK TO INSPECT THE VEHICLE. APPARENTLY THE STEERING COLUMN WAS BROKEN AND THEY COULD NOT EXPLAIN HOW IT HAPPEN. I DID SOME RESEARCH AND SEVERAL OTHER PEOPLE HAVE FILE A COMPLAINT AND MERCEDES DENIES THE PROBLEM. THIS IS A SERIOUS ISSUE AND I RECOMMEND A RECALL ON THERE VEHICLES BEFORE SOMEONE GETS KILLED. WE WERE VERY FORTUNATE IT HAPPENED ON A BACK ROAD AND NOT ON FREEWAY...UPDATED 11/06/14*BF UPDATED 7/15/2015*JS
Mileage: 57,800
TL* THE CONTACT OWNS A 2010 MERCEDES BENZ S550. WHILE DRIVING 15 MPH, THE CONTACT STATED THAT THE STEERING WHEEL BECAME DIFFICULT TO TURN AND NEARLY CAUSED A CRASH. THE CONTACT WAS ONLY ABLE TO STEER THE VEHICLE AFTER THE BRAKE PEDAL WAS DEPRESSED. THERE WERE NO WARNING INDICATORS ILLUMINATED AT THE TIME OF THE FAILURE. THE VEHICLE WAS TAKEN TO THE DEALER, BUT DIAGNOSTIC TESTING WAS NOT PERFORMED. THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 24,000. ..UPDATED 11/11/14 *BF THE CONSUMER STATED THERE WAS NO WARNING LIGHTS, ON THE DASH WHEN THE STEERING WENT OUT. THE VEHICLE WAS REPAIRED. UPDATED 12/11/14
Mileage: 24,000
PURCHASED A CERTIFIED PREOWNED MERCEDES BENZ S5550 4 MATIC. COMPLETE STEERING FAILURE OCCURRED AN HOUR AFTER PURCHASE (AFTER 20 MILES OF DRIVING). THE CAR'S STEERING WHEEL WAS SPINNING FREELY, AND NO CONTROL OVER THE FRONT WHEELS WAS POSSIBLE WHILE IN MOTION. VEHICLE HAD TO BE RECOVERED BY THE DEALER. *TR
Mileage: 52,000
PURCHASED A CERTIFIED PREOWNED MERCEDES BENZ S5550 4 MATIC. COMPLETE STEERING FAILURE OCCURRED AN HOUR AFTER PURCHASE (AFTER 20 MILES OF DRIVING). THE CAR'S STEERING WHEEL WAS SPINNING FREELY, AND NO CONTROL OVER THE FRONT WHEELS WAS POSSIBLE WHILE IN MOTION. VEHICLE HAD TO BE RECOVERED BY THE DEALER. *TR
Mileage: 52,000
PURCHASED A CERTIFIED PREOWNED MERCEDES BENZ S5550 4 MATIC. COMPLETE STEERING FAILURE OCCURRED AN HOUR AFTER PURCHASE (AFTER 20 MILES OF DRIVING). THE CAR'S STEERING WHEEL WAS SPINNING FREELY, AND NO CONTROL OVER THE FRONT WHEELS WAS POSSIBLE WHILE IN MOTION. VEHICLE HAD TO BE RECOVERED BY THE DEALER. *TR
Mileage: 52,000
WHEN STEERING WHEEL IS RELEASED EVEN FOR A FEW SECONDS, VEHICLE PULLS HARD TO THE RIGHT AND WILL PUT YOU IN THE DITCH IF YOU ARE NOT PAYING ATTENTION. THE VEHICLE SHOULD TRACK STRAIGHT WHEN THE STEERING WHEEL IS RELEASED.
Mileage: 332
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.