2012 Mercedes-Benz S550 Recalls, Problems & Safety Rating

2012 Mercedes-Benz S550 recalls

Most common 2012 Mercedes-Benz S550 problems

Problem areas named in the 5 complaints owners filed with NHTSA.

Problem area	Reports
Engine	3
Fuel/Propulsion System	3
Steering	1
Electrical System	1

What owners report

2024-08-26, Fuel/Propulsion System
I purchased this vehicle in July 2020. I did a through check for recalls, warranty problems and could not identify any with this vehicle. From the get go the check engine light would come on. I checked the codes and they indicated an "electrical fault on bank 1, oxygen sensor 1. I replaced the wiring harness on that sensor as well as the sensor. From then until now the car would code weekly about the same issue. Eventually I started using a catalytic converter cleaner (it cleans off sulfur deposits) in an attempt to solve the issue. It would work for a couple of tanks of gas and then continuing coding. I asked MB on numerous occasions about what the issue was. They all said they had no idea.

2022-06-14, Fuel/Propulsion System
There is a strong smell of fuel in the cabin. When I lifted up the rear seats, where the odor is coming from, I see a film of fuel around the fuel sending unit on the driver's side. I lift up the sound insulation and I see fuel that has leaked on total the top of the sending unit.

2021-04-23, Engine
VEHICLE CUT ON FIRE WHILE SITTING LUCKY OUTSIDE, THE CORNER OF ENGINE PASSENGER SIDE BELLOW THE HEADLIGHT STORES THE SUSPENSION AIR PUMP AND ELECTRIC HYDRAULIC STEERING PUMP.. BASE ON MY INSPECTION THE EHPS HEATED AND SET ON FIRE.SOMEONE SAW THE CAR ON FIRE AND CALLED FIRE DEPT.. CAR WAS LOCK AND STORE AFTER HOURS

2019-09-09, Fuel/Propulsion System
TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ S550. WHILE THE VEHICLE WAS STATIONARY IN A PARKING LOT, THE CONTACT SMELLED FUEL FROM THE REAR OF THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. ON SEPTEMBER 5, 2019, THE CONTACT WAS ALERTED BY SOMEONE OF A FUEL LEAK UNDER THE REAR OF THE VEHICLE. UPON INVESTIGATION, THE CONTACT ASSOCIATED THE FAILURE WITH NHTSA CAMPAIGN NUMBER: 12V557000 (FUEL SYSTEM, GASOLINE). THE CONTACT CALLED MERCEDES-BENZ OF ARROWHEAD (LOCATED AT 9260 W BELL RD, PEORIA, AZ 85382, (623) 815-3900) AND NOTIFIED THEM OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 86,000.

2019-04-09, Engine
THERE IS AN PLASTIC PLUG IN THE OIL SYSTEM THAT LEAKS OIL FROM THE ENGINE ON TO THE EXHAUST MANIFOLD. THIS WAS REPORTED BECAUSE OF INCREASED OIL CONSUMPTION, VAPOR IN THE ENGINE SPACE AND A SMELL OF BURNED OIL. THE PLASTIC PLUG IS KNOWN TO LEAK AND MERCEDES DOES NOTHING ABOUT THIS DURING WARRANTY AND INSTEAD WAITS UNTIL THE VEHICULAR IS OUT OF WARRANTY CAUSING AN INCREASED TIME FOR A FIRE POTENTIAL. THIS CAR IS DRIVEN ON CITY STREETS AND HIGHWAYS WITH THIS FIRE POTENTIAL.

2012 Mercedes-Benz S550 questions

Does the 2012 Mercedes-Benz S550 have any recalls?

Yes. NHTSA lists 2 safety recalls for the 2012 Mercedes-Benz S550: Fuel System, Gasoline; Tires:Pressure Monitoring And Regulating Systems. Recall repairs are normally free at an authorized dealer.

What are the most common problems with the 2012 Mercedes-Benz S550?

Based on 5 owner complaints filed with NHTSA, the most-reported problem areas are Engine (3), Fuel/Propulsion System (3), Steering (1).

How do I check if a recall on my 2012 Mercedes-Benz S550 has been fixed?

Enter your 17-character VIN in our VIN recall check. It shows open recalls that have not been repaired on your specific vehicle. Recall repairs are normally free at an authorized dealer.