Reliability Report · Multi-Source Data

Mercedes-Benz Unclassified Reliability

The Mercedes-Benz Unclassified (current generation) scores 89/100 on our composite reliability index — excellent territory — drawn from DVSA data.

Composite Score
89
/ 100
Excellent
Sources: DVSA · latest 2024
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Buying a Mercedes-Benz Unclassified? Check its VIN history first

Reliability data covers the model. A VIN history report covers the exact Mercedes-Benz Unclassified 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.

DVSA MOT (UK Inspections)
Model years 2004–2021 · 2024 report · n=2254
2,254 UK MOT tests · overall 15.9% fail rate vs UK fleet baseline
View source ↗
90
/ 100
DVSA MOT (UK Inspections)
Model years 2003–2020 · 2023 report · n=1209
1,209 UK MOT tests · overall 18.5% fail rate vs UK fleet baseline
View source ↗
87
/ 100

UK MOT Reliability Detail

Based on 2,254 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 35 yrs
87
6.3% fail vs 10.9% fleet
363 tests
Age 69 yrs
99
5.1% fail vs 19.2% fleet
375 tests
Age 1014 yrs
95
12.3% fail vs 32.1% fleet
449 tests
Age 1520 yrs
85
24.6% fail vs 38.8% fleet
1,067 tests

Most Common MOT Failure Categories

#1
Service brake performance
235
22.7%
#2
Rbt (sp)
221
21.4%
#3
Rigid brake pipes
207
20.0%
#4
Condition
189
18.3%
#5
Registration plate lamp(s)
183
17.7%

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.

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