NHTSA (USA)High Risk
At a glance
What can fail
The front roof panel between the windshield and panoramic sunroof may have been improperly bonded during a prior repair, causing the panel to detach from the vehicle.
What the fix does
This page covers 5 recalls, 24 owner complaints and EPA fuel economy for the 2014 Mercedes-Benz S550.
20 mpg combined
11.8 L/100km
Large Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
With only 24 total complaints spread across multiple systems, no single dominant pattern stands out for the 2014 Mercedes-Benz S550. Steering, seat belts, and suspension each account for two complaints, the highest volumes in this set. On the seat belt side, owners describe rear belts failing to retract and remaining loose after buckling. Suspension complaints center on the front air suspension dropping unexpectedly, with the vehicle sitting abnormally low and triggering a warning message. A couple of isolated reports mention brake pad corrosion found during inspection and an engine ticking noise accompanied by oil leaks, though neither rises to a recurring pattern. The complaint volume here is low enough that drawing broad conclusions is difficult.
24
Total Complaints
4
Crash-Related
2
With Injuries
By System
The 2014 Mercedes-Benz S550 has 5 recalls, the most serious being a loss of electric power steering assist and a roof front panel that can detach from the vehicle and become a road hazard.
The power steering issue involves the control unit losing connection, which removes steering assist and makes the wheel significantly harder to turn. The roof panel concern covers two related issues: the adhesive bonding the front panel between the windshield and panoramic sunroof can deteriorate and allow the panel to separate from the car, and a prior repair attempt to address that same bonding problem may not have fully resolved it, leaving some vehicles still at risk of panel detachment. On the restraint side, certain vehicles built in a narrow production window have a front seatbelt anchor that may not have been correctly installed; in a crash, the anchor can pull loose and fail to hold the occupant. There is also a software fault in the emergency call system that can report an incorrect vehicle location to emergency responders, potentially delaying their arrival.
At a glance
What can fail
The front roof panel between the windshield and panoramic sunroof may have been improperly bonded during a prior repair, causing the panel to detach from the vehicle.
What the fix does
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Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Dealers will replace the front roof panel at no charge to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front roof panel between the windshield and panoramic sunroof may not be properly bonded to the vehicle from a previous repair, risking separation.
What the fix does
The dealer will remove and replace the front roof panel using proper bonding materials and procedures at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software error causes the eCall emergency system's date and time to be incorrect, which may result in an inaccurate vehicle location being sent during an emergency call.
What the fix does
Mercedes-Benz will send a remote software update to your vehicle. Dealers will verify the update worked or install a new communication module software at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The electric power steering control unit may have defective solder connections that could cause the power steering system to stop working while you're driving.
What the fix does
Dealers will replace the electric power steering control unit at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front seat belt anchor may not be properly installed, potentially loosening during a crash and failing to restrain occupants.
What the fix does
Dealers will inspect and correct the front seat belt anchor fitting at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.