Pass rate
82.4%
Around average — 3.8 pts ahead of the 78.6% that cars this age and mileage manage.
Across 12,502 recorded tests.
Typical repair bill £40–£104
2013 SEAT Mii MOT pass rate
- 2013
- typical 63,174 mi
Most common fault
Brakes
27.8% of faults · 20.9% nationally
mostly worn pads and discs, corroded pipes and a handbrake that will not hold.
Which year to buy
- Best 2019 92.4% pass
- Avoid 2012 81.6% pass
Across the 10 years on record, a spread of 10.8 points. See every year →
- First-attempt pass
- 78.9%
- Typical mileage
- 63k mi
The 2013 SEAT Mii MOT pass rate is 82.4% of its MOT tests — 3.8 points ahead of what its age and mileage predict. Brakes is the biggest single reason it fails, at 27.8% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how SEAT Mii does in your corner of the country.
Expert verdict
Brakes: 1.3× the national share
Brakes make up 27.8% of everything recorded on the 2013 SEAT Mii, against 20.9% nationally — 6.9 points above. Have the discs and pads measured rather than glanced at, and ask whether the handbrake holds on a slope.
- Beats its own age and mileage. Once you allow for how old and how far these cars have been driven, the expected pass rate is 78.6% and this one manages 82.4% — 3.8 points ahead of what its age and mileage predict.
- When it fails, it costs. Only 26% of this model’s typical repairs come in under £30 in parts — the failures here tend to be the kind that need a garage rather than a bulb.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a SEAT Mii? Get an email when these numbers change .
How does the 2013 SEAT Mii compare?
Cars of this age and mileage average 78.6%, so this figure is 3.8 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 78.9%. The median 2013 SEAT Mii in this dataset had covered 63,174 mi.
Pass rates also shift with the test month: tests recorded October–March passed 82.1% of the time, April–September 82.7%.
The single most recorded failure item is "Service brake performance excessively binding", noted on 2.98% of tests.
- 12,502 recorded tests behind this page.
- 82.4% overall pass rate, 78.9% on a first attempt.
- Across every year of the SEAT Mii, the average is 85.4% — best year 2019 (92.4%), worst 2012 (81.6%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 12,502
- Typical mileage (median)
- 63,174 mi
- Make and model
- SEAT Mii
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Brake Servicing
Typically a garage job — get quotes before committing.
Does mileage affect the Mii MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 66% so small gaps stay visible.
Regional pass rates for the Mii
| Region | Tests | Pass rate |
|---|---|---|
| South East | 2,318 | 85.3% |
| South West | 1,595 | 81.6% |
| North West | 1,407 | 81.4% |
| Yorkshire | 1,325 | 82.9% |
| East of England | 1,187 | 86.4% |
| West Midlands | 1,069 | 83.3% |
| Scotland | 981 | 72.3% |
| East Midlands | 889 | 84.6% |
| Wales | 857 | 79.8% |
| North East | 601 | 79.5% |
| London | 273 | 86.8% |
Regions come from the postcode area recorded at the test station. Areas on region borders are assigned to the region with the majority of their population.
What fails a 2013 Mii
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2013 Mii
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the lights 2.7% of tests
“srs malfunction indicator lamp warning lamp indicates a fault”
Switch everything on and walk round the car: both headlamps on dip and main, every indicator, both brake lights, reverse, fog and the two number-plate lamps. A bulb is a few pounds and a five-minute job.
-
Check the coil springs 1.8% of tests
“coil spring fractured or broken”
Look up inside each wheel arch with a torch, all the way round the spring. A snapped spring usually breaks at the very bottom coil, where a quick glance will not reach.
-
Check the windscreen 1.8% of tests
“windscreen damaged”
Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2013 Mii through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £40–£104 — and 26% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £40–£104
- Cheapest common item: srs malfunction indicator lamp warning lamp…
- £3–£12
- Dearest common item: fuel cap/sealing device ineffective
- £80–£250
- Common items a careful owner can do at home
- 60%
- Repairs that still cost under £30
- 26%
Estimates from typical UK parts prices, weighted by how often each item appears in 12,502 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the Mii, side by side
10 model years on record, from 2012 to 2021. Across them the pass rate runs from 81.6% to 92.4% — a spread of 10.8 points. The bar under each year is the item that failed it most often.
- 2012 81.6% srs malfunction indicator lamp…
- 2013 82.4%service brake performance…
- 2014 84.7% service brake performance…
- 2015 84.9% service brake performance…
- 2016 85.0% pins and bushes pin or bush…
- 2017 87.9% pins and bushes pin or bush…
- 2018 89.9% wipers does not clear the…
- 2019 92.4% headlamp aim too low
- 2020 91.0% has a bulge, caused by separation…
- 2021 90.5% has a bulge, caused by separation…
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2013 SEAT Mii with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2013 cars with a similar record
- Toyota YARIS 82.4%
- BMW 3 Series 82.5%
- MINI COOPER Sd 82.3%
- Smart Mcc Fortwo 82.6%
- Toyota Verso 82.2%
- Skoda Roomster 82.2%
Closest pass rates among 2013 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2013 SEAT Mii 10 failure items · 6 advisories · 10 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 15,894 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Brakes | 4,495 | 27.80% | 20.89% | +6.91 |
| Tyres | 3,948 | 24.40% | 19.76% | +4.64 |
| Suspension | 2,113 | 13.10% | 20.98% | −7.88 |
| Lamps, reflectors and electrical equipment | 1,416 | 8.80% | 12.21% | −3.41 |
| Non-component advisories | 874 | 5.40% | 4.18% | +1.22 |
| Body, chassis, structure | 858 | 5.30% | 5.57% | −0.27 |
| Visibility | 796 | 4.90% | 4.97% | −0.07 |
| Noise, emissions and leaks | 602 | 3.70% | 5.52% | −1.82 |
| Seat belts and supplementary restraint systems | 516 | 3.20% | 0.82% | +2.38 |
| Identification of the vehicle | 276 | 1.70% | 1.76% | −0.06 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Service brake performance excessively binding Brakes | Major | 3.0% | £60–150 |
| Srs malfunction indicator lamp warning lamp indicates a fault Seat belts and supplementary restraint systems | Major | 2.7% | £3–12 |
| Coil spring fractured or broken Suspension | Major | 1.8% | £25–65 |
| Windscreen damaged but not adversely affecting driver's view Visibility | Minor | 1.8% | £80–200 |
| Registration plate lamp(s) inoperative in the case of a single lamp or all lamps Lamps, reflectors and electrical equipment | Major | 1.4% | £5–20 |
| Service brake imbalance across an axle Brakes | Major | 1.2% | £45–110 |
| Tread depth below requirements of 1.6mm Tyres | Major | 1.1% | £45–95 |
| Fuel cap/sealing device ineffective Body, chassis, structure | Major | 1.0% | £80–250 |
| Headlamp aim too low Lamps, reflectors and electrical equipment | Rectified | 1.0% | £30–80 |
| Rbt (sp) efficiency below requirements Brakes | Major | 0.96% | £45–110 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Tread depth below requirements of 1.6mm Tyres | Advisory | 13.4% | £45–95 |
| Has a tear, caused by separation or partial failure of its structure Tyres | Advisory | 12.8% | £45–95 |
| Brake discs in such a condition that it is seriously weakened Brakes | Advisory | 7.5% | £45–110 |
| Service brake performance excessively binding Brakes | Advisory | 5.4% | £60–150 |
| Pins and bushes pin or bush excessively worn Suspension | Advisory | 4.9% | £40–150 |
| Brake pads less than 1.5 mm thick Brakes | Advisory | 3.6% | £18–45 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 1,094 | 89.9% | 21,867 mi |
| 30-60k | 4,552 | 86.0% | 46,852 mi |
| 60-90k | 4,734 | 80.2% | 73,615 mi |
| 90-120k | 1,631 | 76.1% | 101,240 mi |
| 120k+ | 482 | 74.9% | 137,337 mi |
Source: 12,502 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2013 Mii MOT questions
What is the MOT pass rate for a 2013 SEAT Mii?
82.4% of the 12,502 2013 SEAT Mii tests in this dataset passed, against a national average of 78.6% for cars first used in 2013. First-attempt pass rate: 78.9%.
What are the most common MOT failures on a 2013 SEAT Mii?
The three most recorded items are service brake performance excessively binding (2.98%), srs malfunction indicator lamp warning lamp indicates a fault (2.67%), coil spring fractured or broken (1.81%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2013 SEAT Mii MOT pass rate?
Yes. Cars under 30,000 miles passed 89.9% of the time, falling to 74.9% for those over 120,000 miles. The median 2013 SEAT Mii in this dataset had covered 63,174 mi.
Does the season affect the 2013 SEAT Mii MOT pass rate?
Tests recorded in the winter months (October–March) passed 82.1% of the time; summer months (April–September) passed 82.7%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.