Reliability Report · Multi-Source Data

Mercedes-Benz S-Class (2015–2017) Reliability

The Mercedes-Benz S-Class (2015–2017) scores 85/100 on our composite reliability index — excellent territory — drawn from DVSA, NHTSA data. Estimated used prices span €28,800–€88,000.

Composite Score
85
/ 100
Excellent
Sources: DVSA · NHTSA · latest 2026
Market Snapshot
Listed model years2015–2017
Est. used price€28,800–€88,000
Documented issues0
Listings in catalogue24
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Reliability data covers the model. A VIN history report covers the exact Mercedes-Benz S-Class you're looking at — accident and write-off records, mileage rollback, outstanding finance and theft checks.

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Reliability by Source

Each independent organization measures reliability differently. TÜV reports inspection defect rates by age band. ADAC reports pan-European breakdowns per 1,000 vehicles. NHTSA aggregates US consumer complaints. DVSA MOT data is the UK fleet's annual safety inspection — every car 3+ years old. Lower variance across sources = higher confidence in the composite.

NHTSA (US Complaints)
Model years 2013–2019 · 2026 report · n=133
133 complaints across 5 sampled year(s); resolved model="S-CLASS"
View source ↗
73
/ 100
DVSA MOT (UK Inspections)
Model years 2004–2021 · 2024 report · n=49198
49,198 UK MOT tests · overall 10.7% fail rate vs UK fleet baseline
View source ↗
93
/ 100
DVSA MOT (UK Inspections)
Model years 2003–2020 · 2023 report · n=24764
24,764 UK MOT tests · overall 14.3% fail rate vs UK fleet baseline
View source ↗
86
/ 100

UK MOT Reliability Detail

Based on 49,198 MOT tests in the UK during the 2024 reporting period. Score for each age band reflects this model's fail rate vs the UK-fleet baseline fail rate at the same age — a generation-aware metric.

Age 3–5 yrs
89
5.8% fail vs 10.9% fleet
6,091 tests
Age 6–9 yrs
94
7.7% fail vs 19.2% fleet
22,299 tests
Age 10–14 yrs
95
12.4% fail vs 32.1% fleet
11,135 tests
Age 15–20 yrs
91
18.6% fail vs 38.8% fleet
9,673 tests

Most Common MOT Failure Categories

#1
Registration plate lamp(s)
58,419
83.8%
#2
Windscreen
3,156
4.5%
#3
Condition
3,040
4.4%
#4
Ball joint dust cover
2,634
3.8%
#5
Ball joint
2,502
3.6%

Categories ranked across all MOT tests of this model in the UK during the 2024 period. "Condition" covers cosmetic / wear issues; suspension and braking dominate the rest.

Compare Against Alternatives

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