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MK18 XSO

2018 Seat Mii

Black Petrol 999cc
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MOT Status

Valid
Expires2 Mar 2027
Tests7 (6 pass, 1 fail)
Pass rate85.7%

Mileage

28,343 mi
Last recorded28,343 miles
Recorded on10 Feb 2026
Typical for 2018 Seat Mii24,933 mi

Above average mileage for this year

4 checks still locked for this Seat
Stolen
Finance
Write-off
Keepers
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Vehicle Details

RegistrationMK18 XSO
MakeSeat
ModelMii
Year2018
ColourBlack
Fuel typePetrol
Engine999cc

All premium checks include

50+ data points
Finance Check (Experian) Insurance Write-off Salvage Auction Stolen Check Previous Owners Ex-Taxi, Police, NHS Mileage Anomaly Import / Export Scrapped Check Plate Changes

MOT History

6 pass 1 fail
Pass 10 Feb 2026 28,343 miles
Pass 26 Feb 2025 25,644 miles
Pass 20 Feb 2024 23,833 miles
Pass 15 Feb 2023 21,411 miles
Pass 4 Feb 2022 16,657 miles
Pass 12 Feb 2021 14,002 miles
Fail 5 Feb 2021 14,002 miles

Rear Service brake grabbing severely (1.2.1 (c))

Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))

How Reliable is the Seat Mii?

Based on 178,602 MOT tests across 18,080 vehicles.

83.2%
Pass Rate
4,559
Miles/Year
14
Year Lifespan
18,080
On UK Roads
Full Seat Mii reliability report

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MK18 XSO is a 2018 Seat Mii in Black with a 999cc petrol engine. This vehicle has been through 7 MOT tests with a personal pass rate of 85.7%.

Across all 2018 Seat Mii models, the average MOT pass rate is 86.9% with a typical mileage of 24,933 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The Seat Mii typically stays on UK roads for around 14 years. At 8 years old, this Seat Mii is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of MK18 XSO?

You can check the full history of MK18 XSO by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was MK18 XSO registered?

MK18 XSO is a 2018 Seat Mii, first registered on 3 March 2018.

Is MK18 XSO safe to buy?

The MOT history for MK18 XSO shows 7 tests with a 85.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does MK18 XSO have outstanding finance?

Finance checks require a premium vehicle report. This checks against all major UK finance providers to see if there is any outstanding finance on MK18 XSO. If you buy a car with outstanding finance, the finance company can repossess it.

No warranty or guarantee of accuracy is provided for any free data on this page. The data guarantee applies only to information obtained through the purchase of a full check.