2011 Mercedes-Benz S400 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 2011 Mercedes-Benz S400, 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
- Electrical225.0%
- Engine225.0%
- Other / unspecified225.0%
- Fuel system112.5%
- Suspension112.5%
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
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ S400. THE CONTACT NOTICED A FLASHING INDICATOR ON THE INSTRUMENT PANEL RELATED TO THE VEHICLE OVERHEATING. A SECOND UNKNOWN WARNING INDICATOR ALSO ILLUMINATED. THE DEALER (PARK PLACE MOTORCARS MERCEDES-BENZ ARLINGTON, 4201 BELTWAY PL, ARLINGTON, TX 76018, 817-807-4800) DIAGNOSED THAT OIL LEAKED INTO A MODULE AND DIAGNOSTIC TESTING WAS NEEDED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 122,000.
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ S400. WHILE DRIVING AT AN UNKNOWN SPEED, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF TAMPA (4400 N DALE MABRY HWY, TAMPA, FL 33614) WHERE IT WAS DIAGNOSED THAT THE POWER ELECTRONIC CONTROL MODULE FAILED. THE VEHICLE WAS NOT REPAIRED. THE CONTACT REFERENCED TSB NUMBER: 10050865 (ELECTRICAL AND AIR CONDITIONING), BUT THE VEHICLE HAD ALREADY BEEN REPAIRED PER THE SERVICE BULLETIN. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT THAT HE WOULD BE RESPONSIBLE FOR THE REPAIR COST. THE FAILURE MILEAGE WAS 123,000. THE VIN WAS NOT AVAILABLE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ S400. THE CONTACT STATED THAT THE VEHICLE FAILED TO START INTERMITTENTLY. THE HYBRID BATTERY WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED THAT THE INTERIOR LIGHTS WERE INOPERABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF TAMPA (4400 N DALE MABRY HWY, TAMPA, FL 33614, (813)543-8419) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE POWER ELECTRONIC MODULE FOR THE HYBRID SYSTEM FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 18,000.
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ S400. THE CONTACT NOTICED A FLASHING INDICATOR ON THE INSTRUMENT PANEL RELATED TO THE VEHICLE OVERHEATING. A SECOND UNKNOWN WARNING INDICATOR ALSO ILLUMINATED. THE DEALER (PARK PLACE MOTORCARS MERCEDES-BENZ ARLINGTON, 4201 BELTWAY PL, ARLINGTON, TX 76018, 817-807-4800) DIAGNOSED THAT OIL LEAKED INTO A MODULE AND DIAGNOSTIC TESTING WAS NEEDED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 122,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ S400. THE CONTACT STATED THAT THE VEHICLE FAILED TO START INTERMITTENTLY. THE HYBRID BATTERY WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED THAT THE INTERIOR LIGHTS WERE INOPERABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF TAMPA (4400 N DALE MABRY HWY, TAMPA, FL 33614, (813)543-8419) TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE POWER ELECTRONIC MODULE FOR THE HYBRID SYSTEM FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 18,000.
'TAKATA RECALL' MY AIR SUSPENSION WONT MAINTAIN THE PROPER AIR TO KEEP THE AIR SUSPENSION INITS PROPER PLACEWHEN PARKED. ALSO THE TIRE PRESSURE MONITORS IS VERY ERATIC AND DONT DISPLAY TIRE PRESSURE LIKE ITS SUPPOSE TOO WHILE DRIVNG LOCALLY AND ESPECIALLY ON THE HIGHWAY. THIS CAR ONLY HAVE 65000 MILES ON IT AND I DIDNT EXPECT THESE PROBLEMS FROM A 2011 MERCEDES WITH LOW MILES.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
I bought a 2011 MB S400 last year. Everything was good till 3 months ago. I smelled a very bad gas leak one day and it gets worse after I fuel my thank. Nobody wants to seat my car after I buy a gas. I realized there is a gas on my driveway under my passenger seat. When I googled it, there is a recall for MB W221 for 2011 models because of the Fuel Filter parts problem. It's not designed for the heat. Somehow, some 2011 s are not part of this recall, and MB doesn't stand on their car even have the same problem. I removed the back seat and everywhere was gasoline because of the crooked fuel filter part. Protective layer was in so many pieces because of the heat. When I wrote the MB, they refused the replace the part, they didn't accept their safety problem that happened for 2011 MB W221 S class. Currently, I wait their respond. It is so sad, they refuse to replace 100$ part in part of recall. Be careful if you buy a MB, it is not designed for the heat, and MB refuses to replace the problematic fuel filter. Currently, I wait the day to replace the part, or I will be in fire because I drive with a gasoline leak every day. Look at the picture, it is a Mercedes Benz S Class with leaking because of the bad fuel filter design !
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
'TAKATA RECALL' MY AIR SUSPENSION WONT MAINTAIN THE PROPER AIR TO KEEP THE AIR SUSPENSION INITS PROPER PLACEWHEN PARKED. ALSO THE TIRE PRESSURE MONITORS IS VERY ERATIC AND DONT DISPLAY TIRE PRESSURE LIKE ITS SUPPOSE TOO WHILE DRIVNG LOCALLY AND ESPECIALLY ON THE HIGHWAY. THIS CAR ONLY HAVE 65000 MILES ON IT AND I DIDNT EXPECT THESE PROBLEMS FROM A 2011 MERCEDES WITH LOW MILES.
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 .