Mazda 6 (2020)
2020 Mazda 6
CarHunch analysed 1,031 real MOT records for the 2020 Mazda 6. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
What to check before buying a 2020 Mazda 6
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
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 |
|---|---|---|---|
| Petrol (85%) | 879 | 93.2% | 0.3 |
| Diesel (15%) | 152 | 92.7% | 0.36 |
Mileage Distribution
Most 2020 Mazda 6 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 2020 Mazda 6 vehicles fall between 19,249 and 36,364 miles.
2020 Mazda 6 — Still on the Road
Strong survival — 1,013 vehicles still getting MOTs in 2025, 100% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.
MOT History Averages
Most Common MOT Issues — 2020 Mazda 6
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
-
28.9%
Nearside Front Tyre worn close to legal limit/worn on edge
-
25.7%
Front Brake pad(s) wearing thin
-
24.9%
Offside Front Tyre worn close to legal limit/worn on edge
-
12.9%
Rear Brake disc worn, pitted or scored, but not seriously weakened
-
11.1%
Offside Rear Brake disc worn, pitted or scored, but not seriously weakened
-
10.5%
Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened
-
10.4%
Rear Brake pad(s) wearing thin
-
9.5%
Nearside Rear Tyre worn close to legal limit/worn on edge
Data covers a 3-year window centred on 2020. Counts include advisories and failures.
Found a specific Mazda 6?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.