2011 Mercedes-Benz S550

Routine

Owners filed 9 complaints about this vehicle with federal regulators, most often about the unknown or other. It has been recalled 2 times.

What fails
ComponentReportsCrashesFiresInjuries
Unknown or Other2
100
Fuel/Propulsion System2
000
Suspension › Front › Springs › Air Suspension › Springs/Bags1
000
Structure › Body1
000
Forward Collision Avoidance › Warnings1
000
Engine1
010
Electrical System1
000

2 safety recalls

Part 573 reports
Fuel System, Gasoline12V557000
Filed Dec 3, 20125,800 vehiclesMercedes-Benz Usa, Llc.

Defect. Mercedes-Benz is recalling certain model year 2011-2012 S400, S550, S550 4Matic, S63 AMG, C300, C300 4Matic, E350, GLK350, GLK350 4Matic, CL550 4Matic, and CL63 AMG vehicles manufactured from April 18, 2011, through July 12, 2011. Due to an irregularity stemming from the molding process of the fuel filter flange, the fuel filter flange may crack when operated in high temperatures.

Risk. If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present.

Remedy. Mercedes-Benz will notify owners, and dealers will replace the fuel filter, free of charge. The recall campaign is expected to begin in February 2013. Owners may contact Mercedes-Benz at 1-800-367-6372.

Tires › Pressure Monitoring and Regulating Systems11V493000
Filed Oct 3, 2011158 vehiclesMercedes-Benz Usa, Llc.

Defect. Mercedes-Benz USA, LLC (Mercedes Benz) is recalling certain model year 2011-2012 S550, S550 CGI, S63, S600 Bi-Turbo, S65 AMG, S550 4-Matic, and S550 CGI 4-Matic and S400 Hybrid vehicles manufactured from March 3, 2011, through July 30, 2011, for failing to comply with the requirements of Federal Motor Vehicles Safety Standard (FMVSS) number 138, "Tire Pressure Monitoring System (TPMS)." The tire pressure monitoring system indicators may only illuminate for a portion of the time required by the standard and under certain conditions may not re-illuminate immediately after the vehicle is restarted as required.

Risk. If all four wheel sensors in the subject vehicles are simultaneously malfunctioning or missing, the TPMS will provide an initial warning, but this warning will not automatically repeat on subsequent ignition cycles, failing to remind the driver that the system is offline. Driving unknowingly with incorrectly inflated tires may result in sudden tire failure, increasing the risk of a crash.

Remedy. Mercedes Benz will notify owners, and dealers will reprogram the tire pressure monitoring unit, free of charge. The recall began on September 12, 2014. Owners may contact Mercedes Benz at 1-800-367-6372.

What owners reported

Newest filings
Forward Collision Avoidance › Warnings
Filed Aug 18, 2026CA

The instrument cluster on my 2011 Mercedes-Benz S550 (W221) is locked by a persistent red “Battery Not Charged” warning message. This message appears even though the charging system is working correctly (normal charging voltage, new battery, and new battery sensor installed). Because the cluster is locked, I can no longer: • View or reset tire pressure (TPMS) • Access the digital speed display • Adjust or enable certain lighting functions, including daytime running lights • Adjust seatbelt settings • Turn the blind spot monitor on or off • Control PRE-SAFE braking / related safety systems • Use other instrument cluster menus and driver information displays The problem began after a low-voltage event (battery went dead and the car only partially cranked). Clearing fault codes does not permanently resolve it — the message returns immediately. This is a known software issue on facelift W221 models that requires an instrument cluster software update and SCN coding to fix. The locked cluster prevents access to required safety information and multiple safety-related vehicle functions. The vehicle and components are available for inspection.

Suspension › Front › Springs › Air Suspension › Springs/Bags
Filed Apr 29, 202567,879 milesGA

The contact's daughter owns a 2011 Mercedes-Benz S550. The contact stated that while the vehicle was parked in the garage, the contact noticed that the air suspension had collapsed. The dealer was notified of the failure and informed the contact that it was a known failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 67,879.

Fuel/Propulsion System
Filed May 8, 2024OH

My driver side Rear seat underneath is leaking gasoline. FUEL SYSTEM, GASOLINE If the fuel filter flange cracks, it will leak fuel which may lead to a fire if an external ignition source is present. NHTSA CAMPAIGN ID Number: 12V557000

Fuel/Propulsion System
Filed Mar 18, 2022GA

I am filing a complaint with your agency regarding a fuel pump malfunction with my 2011 Mercedes S550 (VIN# [XXX]), because I feel that the incident below is a major safety concern and is similarly situated to the following NHTSA Campaign #12V557000. On March 15, 2022, I was pumping gas into my vehicle at Costco in Brookhaven, Georgia. The gas attendant and I were chatting about gas prices and so forth. In 10-to-15 minutes Costco's members that were getting gas, were attempting to alert us that an ocean ($88.00) of fuel was rapidly spewing out the opposite side (driver side) of the vehicle's fuel tank. On March 16, 2022, I had the vehicle towed to RBM of Atlanta in Sandy Springs, Georgia. Later that afternoon, [XXX], the service advisor advised me that the vehicle's fuel tank will need to be replace. I agreed to the repair. However, I asked the advisor to send me photos of the malfunctioned part, as well as, an itemized Repair invoice. I have yet to receive either. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Structure › Body
Filed Sep 23, 2020TX

IABOUT 2 MONTHS AGO, I WAS UNABLE TO START MY CAR. IT HAD A WARNING MESSAGE 'SERVICES REQUIRED. DO NOT SHIFT THE GEAR'. WE TOWED OUR CAR TO THE DEALER AND LEARNED THAT THE BACKSEAT FLOOD HAD STANDING WATER! THIS CAUSED THE ELECTRONIC SHORTAGE. WE PAID OVER $2000 TO MAKE THE CAR RUNNING AGAIN. IT LOOKS THAT THE RAIN GOT IN THROUGH DRIVER SIDE BACK WINDOW BECAUSE OF THE SEALING PROBLEMS. IT RAINED LAST NIGHT. I JUST LOOKED AT MY CAR. THE BACK FLOOR LIKES RIVER AGAIN. I AM UNABLE TO START THE CAR AGAIN. NOW WE FEEL THAT THIS CAR IS VERY UNSAFE. WE DO NOT KNOW WHEN THE RAIN WILL GET INTO THE CAR TO CAUSE THE ELECTRONIC PROBLEMS. WE ARE AFRAID THAT WE MAY BE TRAPPED IN A FLOOD IF WE DRIVE IT IN THE RAIN' WE CONTACTED THE DEALER LAST MONTH TO ASK THEM TO RECALL THIS CAR AND FIND THE REASON FOR THIS LEAKING. THEY TOLD US TO PAY ALL THE COSTS. WE DID NOT ACCEPT BECAUSE THIS IS OBVIOUSLY A MANUFACTURE DEFECT! WE ARE SEEKING YOUR HELP TO SOLVE THIS ISSUE BECAUSE THIS LEAKING MAY CAUSE MANY ELECTRIC PROBLEMS THAT HAS MAKE THIS CAR UNABLE TO DRIVE. I ATTACHED THE EMAIL COMMUNICATIONS WITH THE DEALER IN CASE THAT YOU MAY NEED THEM. THANK YOU AND I AM LOOKING FORWARD TO HEARING BACK FROM YOU SOON!

EngineFire
Filed Aug 22, 2018118,000 milesCA

TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ S550. THE CONTACT STATED THAT THE VEHICLE CAUGHT ON FIRE WHILE PARKED. THE CONTACT WAS ABLE TO EXTINGUISH THE FIRE WHICH STARTED FROM UNDERNEATH THE VEHICLE. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO DETERMINED THAT THE ENGINE HARNESS LEADING TO THE OXYGEN SENSOR WAS THE CAUSE OF THE FIRE. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS TOWED TO HOUSE OF IMPORTS (6862 AUTO CENTER DR, BUENA PARK, CA 90621, (714) 627-5553) FOR DIAGNOSTIC TESTING OVER A MONTH AGO WHERE IT WAS STILL AWAITING A DIAGNOSIS. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND A CASE MANGER WAS ASSIGNED. THE CONTACT SENT PICTURES OF THE VEHICLE AND FAILED PARTS TO THE MANUFACTURER. THE FAILURE MILEAGE WAS APPROXIMATELY 118,000.

Unknown or OtherCrash
Filed Jun 29, 201767,000 milesMT

SHIFTING LEVER IS UP FOR REVERSE, CENTER FOR PARK, DOWN FOR FORWARD. ALL OTHER TRANSMISSIONS YOU PUSH UP FOR PARK. AFTER DRIVING ALL OTHER CARS, EVEN PRIOR MERCEDES IF YOU EXIT THE CAR YOU PUSH THE TRANSMISSION LEVER TO UP FOR PARK EVEN WITH THE ENGINE RUNNING YOU PUSH THE LEVER UP FOR PARK. THIS BECOMES A HABIT, A REFLEXIVE ACTION BUT IF YOU DO THIS IN THIS MERCEDES YOU GO INTO REVERSE. WHAT HAPPENED TO ME IS I STARTED THE CAR IN MY GARAGE AND FORGOT SOMETHING SO I HOPPED OUT WHILE REACHING FOR THE SHIFT LEVER AND PUSHED UP FOR PARK, BUT IT WASN'T PARK, IT WAS REVERSE AND MY CAR STARTED BACKWARD WITH ME ONLY PARTIALLY IN THE CAR. I BARELY MADE IT BACK IN BEFORE I WIPED OUT MY DRIVERS DOOR ON THE GARAGE WALL AS THE CAR EXITED THE GARAGE. I CAME WITHIN A WHISPER OF GETTING SMASHED BETWEEN THE CAR DOOR AND THE GARAGE. DAMAGE, ABOUT $7,000 BUT I AVOIDED GETTING KILLED. NOW, YOU MAY SAY THAT IT IS MY FAULT FOR NOT SHIFTING PROPERLY BUT WHY WOULD MERCEDES GO AWAY FROM WHAT HAS BEEN THE PRACTICE FOR MANY, MANY YEARS? MUCH OF DRIVING IS DOING WHAT YOU HAVE BEEN CONDITIONED TO DO, MUCH OF IT IS REFLEXIVE AND THAT SHOULD BE CONSIDERED IN DESIGN FOR SAFETY. I WROTE TO MERCEDES ABOUT THIS AND TOLD THEM THAT THIS IS A SAFETY ISSUE. I ASKED THEM FOR REIMBURSEMENT FOR MY REPAIR BUT I DON'T EXPECT THEY WILL COMPLY.

Electrical System
Filed Oct 7, 2016NE

TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ S550. WHILE DRIVING 70 MPH, THE VEHICLE ACCELERATED UP TO 110 MPH ON ITS OWN. THE REAR OF THE VEHICLE RATTLED WITHOUT WARNING. ON ANOTHER OCCASION, ALL THE WARNING INDICATORS FAILED TO ILLUMINATE AND THE GPS PROVIDED INCORRECT INFORMATION. THE VEHICLE WAS TAKEN TO A DEALER, BUT THEY COULD NOT DUPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.

Unknown or Other
Filed May 9, 201510,000 milesCO

I HAVE 20 INCH WHEELS ON THE CAR AND IN THREE YEARS I HAVE HAD THREE WHEELS CRACK. TO DATE NO ACCIDENTS HAVE OCCURRED BUT I AM AFRAID OF A CATASTROPHIC WHEEL FAILURE AT 75 MILES PER HOUR

9 of 9 complaints, reproduced as filed.

Across model years

Worst on record: 2007
YearComplaintsRecallsFiresDeathsAssessment
2017161000Routine
201615500Routine
201541530Routine
201424500Routine
20137000Routine
20125210Routine
2011 — this page9210Routine
201016000Routine
200819000Routine
200754020Routine

Compare every S550 year →

Reading this record

No unusual pattern of severe incidents in the complaint record.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.

Most recent recall on file: Dec 3, 2012. Source: NHTSA Office of Defects Investigation.