2015 Mercedes-Benz S-Class: owner complaints and recalls
Analysis of 51 owner complaints filed with NHTSA and 0 recall campaigns. Updated 2026-07-25.
51
Complaints
0
Recalls
6
Crash reports
3
Fire reports
8
Injuries
207.8
Severity index
Severity index 207.8 - High. This weights crashes, fires, injuries and fatalities per 100 complaints; see methodology.
Among the 143 2015 vehicles we track with at least 40 complaints on file, the 2015 Mercedes-Benz S-Class ranks 11 of 143 by severity, where 1 is the worst. Its severity is higher than 92% of its model-year peers. See the full 2015 ranking.
What actually fails
| Component | Complaints | Share of complaints citing it |
|---|---|---|
| UNKNOWN OR OTHER | 10 | 19.6% |
| SEAT BELTS | 8 | 15.7% |
| STRUCTURE | 6 | 11.8% |
| ELECTRICAL SYSTEM | 6 | 11.8% |
| AIR BAGS | 5 | 9.8% |
| WHEELS | 5 | 9.8% |
| STEERING | 4 | 7.8% |
| SERVICE BRAKES | 4 | 7.8% |
The single most-reported system is UNKNOWN OR OTHER, cited in 10 of 51 complaints (19.6%). One complaint can name several systems, so these shares overlap and do not total 100%.
Complaints filed per year
| Year | Complaints |
|---|---|
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 8 |
| 2024 | 6 |
| 2025 | 7 |
| 2026 (year to date) | 1 |
Complaint volume is rising - the last three years carry 1.6x the filings of the three before them, which usually signals a wear-related defect surfacing with age.
Source. US National Highway Traffic Safety Administration public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-07-25. Complaints are unverified consumer reports; volume is influenced by how many units were sold and how long the vehicle has been on the road. Not affiliated with NHTSA or any manufacturer.