Seat Mii (2019)
2019 Seat Mii
CarHunch analysed 1,311 real MOT records for the 2019 Seat Mii. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2019 SEAT MII is a genuinely reliable performer, with a 90.7% first-time pass rate that sits well above the UK average of 80%—this is one of the stronger results for its age. The dangerous defect rate of 10.8% is reassuring and below typical concern thresholds, so safety-critical failures are not a pattern here.
These cars are running low mileage for their age (median just over 21,000 miles), which partially explains the strong pass rate, but the real story is in what fails: an average of 0.49 failures per vehicle suggests most pass without drama, while 2.9 advisories per vehicle point to minor wear items rather than structural problems. When shopping for a used MII from this year, prioritise a pre-purchase inspection focused on brake condition and suspension components—the advisory figures suggest those are the areas most likely to need attention soon.
What to check before buying a 2019 Seat Mii
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 Seat Mii
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Mileage Distribution
Most 2019 Seat Mii 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 2019 Seat Mii vehicles fall between 13,531 and 31,232 miles.
2019 Seat Mii — Still on the Road
Strong survival — 1,269 vehicles still getting MOTs in 2025, 99% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.
MOT History Averages
Most Common MOT Issues — 2019 Seat Mii
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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16.7%
Offside Rear Tyre slightly damaged/cracking or perishing
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15.1%
Nearside Rear Tyre slightly damaged/cracking or perishing
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12.7%
Nearside Front Tyre worn close to legal limit/worn on edge
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11.5%
Offside Front Tyre worn close to legal limit/worn on edge
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10.2%
Offside Front Tyre slightly damaged/cracking or perishing
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8.8%
Nearside Front Tyre slightly damaged/cracking or perishing
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4.6%
Front Brake disc worn, pitted or scored, but not seriously weakened
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4.1%
Front Brake pad(s) wearing thin
Data covers a 3-year window centred on 2019. Counts include advisories and failures.
Found a specific Seat Mii?
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