repaired · 2025 Q4
Body: roof and pillars
Risk. A detached roof panel can become a road hazard, increasing the risk of a crash.
2015 Mercedes-Benz S550Problems, recalls & complaints
NHTSA has logged 41 owner complaints about the 2015 Mercedes-Benz S550, most often about the seat belts. It is covered by 5 safety recalls, and for recall 23V-854 the manufacturer reports only 41% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through January 30, 2026. Updated daily. Photo: MercurySable99, CC BY-SA 4.0.
Complaints by system
Where the 2015 Mercedes-Benz S550 has problems
41 complaints grouped by the system owners reported.
7Seat belts2 crash/fire/injury
5Electrical system4 crash/fire/injury
5Wheels
5Structure2 crash/fire/injury
4Air bags3 crash/fire/injury
4Steering
3Engine1 crash/fire/injury
2Tires
2Fuel/propulsion system
1310 other systems6 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Seat belts | 7 | 2 |
| Electrical system | 5 | 4 |
| Wheels | 5 | 0 |
| Structure | 5 | 2 |
| Air bags | 4 | 3 |
| Steering | 4 | 0 |
| Engine | 3 | 1 |
| Tires | 2 | 0 |
| Fuel/propulsion system | 2 | 1 |
| 10 other systems | 13 | 6 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
5 recalls
2015 Mercedes-Benz S550 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2023 Q3
Body: roof and pillars
Risk. The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the…
repaired · 2021 Q1
Communication
Risk. An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.
repaired · 2018 Q3
Frontal: sensor/control module-inactive
Risk. If the air bags do not deploy as intended in the event of a crash, there would be an increased risk of injury in the event of a crash.
Show 1 more recall
repaired · 2019 Q1
Steering: electric power assist system
Risk. If the control unit pins lose connection, there would be a loss of electric power steering assist, increasing the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.
Best & worst years
2015 vs. every other S550 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the S550 median. How we score
'07'08'10'11'12'13'14'15'16'17
- Avoid
- Caution
- Solid
- Best
- Not rated
1 investigation
NHTSA defect investigations
Federal investigations that included the 2015 Mercedes-Benz S550, and the recalls they led to.
- Front Roof Panel DetachmentLed to recall 21V-197
In owners' words
What S550 owners report
Recent seat belts complaints filed with NHTSA, shortened. Personal details are removed.
The rear seatbelts do not retract to restrain the passenger. They also don't retract after the passenger has exited the vehicle.
The contact owns a 2015 Mercedes-Benz S550. The contact stated that the rear driver's side seat belt was inoperable. The contact stated that the seat belt failed to retract as designed. The vehicle was taken to the dealer where it was diagnosed with a failed seat belt retractor. The contact was…
Driver rear seatbelt is fully extended and won’t retract. A quick google search shows that this is a common problem with this model.
Own a 2015 S550?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.