Mazda 6 Sport Nav D (2017)
2017 Mazda 6 Sport Nav D
CarHunch analysed 156 real MOT records for the 2017 Mazda 6 Sport Nav D. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2017 Mazda 6 Sport Nav D has a first-time MOT pass rate of 62.9%, significantly below the UK average of 80%, which is a genuine concern for buyers—this diesel model consistently struggles at test, with 153 out of 156 vehicles in our sample sharing the same poor 62.2% pass rate. No vehicles recorded dangerous defects, which is reassuring from a safety perspective, though the low pass rate suggests systemic issues rather than isolated problems.
At a median mileage of 64,862 miles for a seven-year-old car, these are relatively low-mileage examples, yet they're still failing MOT at well above the expected rate, pointing to design or maintenance vulnerabilities rather than wear-and-tear alone. If you're considering this model, get a pre-purchase inspection focused on the specific failure patterns (check recent MOT history for repeated issues), and budget for likely first-MOT costs.
What to check before buying a 2017 Mazda 6 Sport Nav D
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Mazda 6 Sport Nav D
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (98%) | 153 | 62.2% | 0.17 |
| Gas Bi-Fuel (2%) | 3 | 100% | 0 |
Mileage Distribution
Most 2017 Mazda 6 Sport Nav D vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2017 Mazda 6 Sport Nav D vehicles fall between 51,449 and 84,787 miles.
2017 Mazda 6 Sport Nav D — Still on the Road
68 vehicles still getting MOTs in 2025 — 79% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.
MOT History Averages
Found a specific Mazda 6 Sport Nav D?
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