Seat Mii (2014)
2014 Seat Mii
CarHunch analysed 3,203 real MOT records for the 2014 Seat Mii.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2014 SEAT MII passes its MOT first time at 85.7%, which is a solid 5.7 percentage points above the UK average—a genuine reliability strength. However, one in four of these cars (25.4%) has recorded a dangerous defect at some point, which is a meaningful concern for buyers considering used examples and warrants a thorough pre-purchase inspection.
At just under 40,000 miles median mileage, these cars are relatively lightly used for their age, yet they're still accumulating an average of 1.64 failures per test and 9.2 advisories, suggesting wear patterns are beginning to show. Before buying, get an independent MOT history check to verify any previous dangerous defects and focus your inspection on the advisories that repeat across the model—this will tell you exactly which components to budget for maintenance on.
The 2014 Seat Mii has a decent first-time pass rate (85.7%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 3,203 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 3,203 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2014.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 3,203 Seat Mii cars.
Before you buy a 2014 Seat Mii
Based on MOT data from 3,203 vehicles — here's what to check.
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Check the full MOT history.
25.4% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Colour Breakdown
Based on 17,857 Seat Mii vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2014 Seat Mii vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2014 Seat Mii vehicles fall between 28,793 and 52,247 miles.
2014 Seat Mii — Still on the Road
Almost all 2014 Seat Miis are still on the road.
Strong survival — 2,997 vehicles still getting MOTs in 2025, 97% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
See how the 2014 Seat Mii stacks up against a rival.