SEAT MII reliability, MPG and running costs
Figures updated
The SEAT MII is a city car. In 2024 MOT tests it scored 102 for reliability (100 is average), ranking 240 of 442, and 22.4% failed first time against a UK average of 28.5%. Its most common MOT failure is service brake performance (2.4% of tests).
Ranked 240 of 442 cars in the 2024 MOT Reliability League, and 5 of 26 city cars
In 2024, 18,563 SEAT MIIs aged 3 to 20 had an MOT and 22.4% failed first time (UK average 28.5%). Taking age and mileage into account, the SEAT MII is about as likely to fail as the average car of the same age and mileage. At the first MOT, at three years old, 13.2% failed (UK 12.7%).
First-time fail rate
22.4%
UK 28.5%
Fail rate at 3 years
13.2%
UK 12.7%
Average miles a year
5,900
Typical age at test: 9 years
SEAT MII MOT failure rate by age
Most common SEAT MII MOT faults
- Service brake performance: excessively binding2.4% of tests
- Wipers: does not clear the windscreen effectively1.9% of tests
- Tread depth: tread depth below requirements of 1.6mm1.8% of tests
- Position lamp: not working1.7% of tests
- Registration plate lamp(s): inoperative in the case of a single lamp or all lamps1.6% of tests
- Pins and bushes: pin or bush excessively worn1.5% of tests
What the SEAT MII fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Lights and electrics | 7.7% | About average |
| Brakes | 6.0% | ▲ 1.3× as often |
| Tyres | 4.3% | ▼ 23% less often |
| Visibility | 3.7% | About average |
| Suspension | 3.5% | ▼ 43% less often |
| Body and structure | 2.7% | ▲ 1.4× as often |
| Exhaust and emissions | 2.1% | ▲ 1.2× as often |
| Seat belts and airbags | 1.7% | ▲ 3.5× as often |
| Steering | 0.1% | ▼ 89% less often |
| Wheels | 0.1% | ▼ 47% less often |
What MPG does the SEAT MII do?
Official economy for the SEAT MII ranges from 51.4 to 68.9mpg across the 10 versions listed by the Vehicle Certification Agency (2014–2020). A typical petrol version manages 62.8mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a SEAT MII?
Any SEAT MII first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A SEAT MII registered between March 2001 and March 2017 is taxed on its CO2: £20 a year.
Work out tax for a specific carSEAT MII specs and running costs
Official figures for 10 versions sold in the UK between 2014 and 2020.
Fuel types
Petrol
Official economy
51.4–68.9 mpg
CO2
95–124 g/km
Power
60–75 PS
| Version | Fuel | Economy | CO2 | Car tax |
|---|---|---|---|---|
| Mii Design Mii 1.0 12V 60PS60 PS · M5 · listed 2020 | Petrol | 53.3 mpg | 119g | £200 |
| Mii FR-Line 1.0 12V 60PS60 PS · M5 · listed 2020 | Petrol | 52.3 mpg | 121g | £200 |
| Mii FR-Line 1.0 12V 75PS75 PS · M5 · listed 2020 | Petrol | 51.4 mpg | 124g | £200 |
| Mii 1.0 60PSM5 · listed 2018 | Petrol | 62.8 mpg | 105g | £200 |
| Mii 1.0 60PS EcomotiveM5 · listed 2018 | Petrol | 68.9 mpg | 95g | £200 |
| Mii 1.0 75PSM5 · listed 2018 | Petrol | 61.4 mpg | 106g | £200 |
| Mii 1.0 75PSA5 · listed 2018 | Petrol | 62.8 mpg | 105g | £200 |
| Mii 1.0 60PS EcomotiveManual · listed 2014 | Petrol | 68.9 mpg | 96g | £20 |
| Mii 1.0 60PSManual · listed 2014 | Petrol | 62.8 mpg | 105g | £20 |
| Mii 1.0 75PSManual · listed 2014 | Petrol | 60.1 mpg | 108g | £20 |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement.
What a SEAT MII costs to fuel
- petrol, typical official 62.8mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a SEAT MIIBuying a used SEAT MII?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Compare the SEAT MII with other city cars
Reliability, economy, car tax and running costs side by side.
Other SEAT models
Frequently asked questions
›Is the SEAT MII reliable?
Its MOT record is about average: the SEAT MII is about as likely to fail as the average car of the same age and mileage, with a reliability score of 102 in our 2024 league (100 is average).
›What are common problems with the SEAT MII?
The most common MOT fault is “Service brake performance: excessively binding”, found in 2.4% of tests. It fails on seat belts and airbags and body and structure more often than similar cars.
›What MPG does the SEAT MII do?
Official economy for the SEAT MII ranges from 51.4 to 68.9mpg across the 10 versions listed by the Vehicle Certification Agency (2014–2020). A typical petrol version manages 62.8mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a SEAT MII?
Any SEAT MII first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A SEAT MII registered between March 2001 and March 2017 is taxed on its CO2: £20 a year.
›How many SEAT MIIs fail their MOT?
22.4% of SEAT MIIs aged 3 to 20 failed their MOT first time in 2024, and 13.2% failed at their first MOT.
Sources: DVSA anonymised MOT tests 2024, all versions of the SEAT MII combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.