Reliability Report · Multi-Source Data

Dacia Logan Reliability

The Dacia Logan (current generation) scores 56/100 on our composite reliability index — average territory — drawn from ADAC, DVSA, TÜV data.

Composite Score
56
/ 100
Average
Sources: ADAC · DVSA · TÜV · latest 2025
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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.

ADAC (European Auto Club)
All model years · 2025 report
14.1/1000 breakdowns
View source ↗
55
/ 100
TÜV (Germany)
All model years · 2025 report
HU defect rate (TÜV Report 2025): 6-7yr 22.3%, 8-9yr 28.3%, 10-11yr 39.6%, 12-13yr 41.0%
View source ↗
54
/ 100
DVSA MOT (UK Inspections)
Model years 2010–2021 · 2024 report · n=18909
18,909 UK MOT tests · overall 23.3% fail rate vs UK fleet baseline
View source ↗
61
/ 100
DVSA MOT (UK Inspections)
Model years 2009–2020 · 2023 report · n=14435
14,435 UK MOT tests · overall 22.5% fail rate vs UK fleet baseline
View source ↗
56
/ 100

UK MOT Reliability Detail

Based on 18,909 MOT tests in the UK during the 2024reporting 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
52
15.9% fail vs 10.9% fleet
3,654 tests
Age 6–9 yrs
61
23.7% fail vs 19.2% fleet
12,224 tests
Age 10–14 yrs
72
30.9% fail vs 32.1% fleet
3,031 tests

Most Common MOT Failure Categories

#1
Registration plate lamp(s)
1,178
23.9%
#2
Wipers
1,101
22.3%
#3
Headlamp aim
1,035
21.0%
#4
Condition
869
17.6%
#5
Tread depth
744
15.1%

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

Compare Against Alternatives

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