Reliability Report · Multi-Source Data

Mazda 3 (2015–2017) Reliability

The Mazda 3 (2015–2017) scores 61/100 on our composite reliability index — average territory — drawn from ADAC, DVSA data. The most-flagged failure mode is ac compressor noise / clutch failure, typically surfacing between 80,000 and 180,000 km. Workshop repair runs €400–€900. Estimated used prices span €5,200–€8,900.

Composite Score
61
/ 100
Average
Sources: ADAC · DVSA · latest 2025
Market Snapshot
Listed model years2015–2017
Est. used price€5,200–€8,900
Documented issues1
Listings in catalogue50
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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
17.5/1000 breakdowns
View source ↗
50
/ 100
DVSA MOT (UK Inspections)
Model years 2004–2021 · 2024 report · n=143276
143,276 UK MOT tests · overall 27.0% fail rate vs UK fleet baseline
View source ↗
70
/ 100
DVSA MOT (UK Inspections)
Model years 2003–2020 · 2023 report · n=103731
103,731 UK MOT tests · overall 27.8% fail rate vs UK fleet baseline
View source ↗
67
/ 100

UK MOT Reliability Detail

Based on 143,276 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
83
7.4% fail vs 10.9% fleet
18,298 tests
Age 6–9 yrs
67
20.7% fail vs 19.2% fleet
50,394 tests
Age 10–14 yrs
72
30.2% fail vs 32.1% fleet
41,364 tests
Age 15–20 yrs
65
43.5% fail vs 38.8% fleet
33,220 tests

Most Common MOT Failure Categories

#1
Ball joint
10,813
22.2%
#2
Headlamp
10,531
21.6%
#3
Condition
10,066
20.6%
#4
Registration plate lamp(s)
9,556
19.6%
#5
Coil spring
7,782
16.0%

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.

Known Issues

Specific failure modes documented across European workshops, owner forums, and TSBs. Costs in EUR (and USD reference) reflect typical retail European labor + parts ranges — specialist shops at the low end, dealer pricing at the high end.

AC compressor noise / clutch failure
Typical at 80,000–180,000 km
BM/BP Mazda3 AC compressor bearings whine, then clutch fails; AC works intermittently before quitting.
€400–€900low

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