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ST12 KMZ

2012 Kia Rio

Black Petrol 1248cc
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MOT Status

Valid
Expires12 Jan 2027
Tests16 (12 pass, 4 fail)
Pass rate75%

Mileage

131,777 mi
Last recorded131,777 miles
Recorded on15 Dec 2025
Typical for 2012 Kia Rio57,620 mi

Significantly above average — investigate

4 checks still locked for this Kia
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Finance
Write-off
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Vehicle Details

RegistrationST12 KMZ
MakeKia
ModelRio
Year2012
ColourBlack
Fuel typePetrol
Engine1,248cc

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

12 pass 4 fail
Pass 15 Dec 2025 131,777 miles

Front Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Pass 13 Jan 2025 128,798 miles

Front Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Pass 12 Oct 2023 107,677 miles

Oil leak, but not excessive (8.4.1 (a) (i))

Pass 17 Oct 2022 93,859 miles

Front Anti-roll bar corroded but not seriously weakened (5.3.3 (b) (i))

Front Anti-roll bar linkage corroded but not seriously weakened Both sides (5.3.3 (b) (i))

Fail 15 Oct 2022 93,859 miles

Nearside Rear Shock absorbers has a serious fluid leak (5.3.2 (b))

Nearside Front Suspension arm pin or bush likely to become detached Rear bush (5.3.4 (a) (ii)) DANGEROUS

Front Anti-roll bar corroded but not seriously weakened (5.3.3 (b) (i))

Front Anti-roll bar linkage corroded but not seriously weakened Both sides (5.3.3 (b) (i))

Pass 4 Oct 2021 89,141 miles

Front Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Nearside Rear Service brake binding but not excessively (1.2.1 (f))

Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Fail 28 Sep 2021 89,120 miles

Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))

Front Anti-roll bar corroded but not seriously weakened (5.3.3 (b) (i))

Front Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))

Nearside Front Day time running lamp not working

Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement Arm rear bush (5.3.4 (a) (i))

Nearside Rear Service brake binding but not excessively (1.2.1 (f))

Offside Rear Tyre worn close to legal limit/worn on edge 2-3 mm (5.2.3 (e))

Pass 10 Oct 2020 82,422 miles
Pass 27 Feb 2020 79,608 miles

Nearside Rear Service brake binding but not excessively (1.2.1 (f))

Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Fail 25 Feb 2020 79,582 miles

Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))

Offside Front Suspension arm pin or bush excessively worn rear (5.3.4 (a) (i))

Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) DANGEROUS

Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) DANGEROUS

Nearside Rear Service brake binding but not excessively (1.2.1 (f))

Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Pass 21 Feb 2019 67,871 miles

rear bush on offside front suspension arm split

Pass 16 Feb 2018 54,601 miles

Front Brake pad(s) wearing thin (3.5.1g)

Offside Rear Tyre worn close to the legal limit & cracked (4.1.E.1)

Suspension arm rubber bush deteriorated but not resulting in excessive movement rear on offside front (2.4.G.2)

Fail 14 Feb 2018 54,599 miles

Nearside Rear brake disc in such a condition that it is seriously weakened (3.5.1i)

Offside Rear brake disc in such a condition that it is seriously weakened (3.5.1i)

Offside rear parking brake recording little or no effort (3.7.B.6a)

Parking brake: efficiency below requirements (3.7.B.7)

Suspension arm rubber bush deteriorated resulting in excessive movement rear on nearside front (2.4.G.2)

Offside Rear Braking system leaking caliper (3.6.A.1) DANGEROUS

Front Brake pad(s) wearing thin (3.5.1g)

Offside Rear Tyre worn close to the legal limit & cracked (4.1.E.1)

Suspension arm rubber bush deteriorated but not resulting in excessive movement rear on offside front (2.4.G.2)

Pass 27 Feb 2017 43,824 miles

Nearside Front Tyre worn close to the legal limit (4.1.E.1)

front & rear tyres cracked

inner face on rear brake discs rusty

rear bush on offside & nearside front suspension arms cracked

Pass 29 Feb 2016 32,730 miles
Pass 8 May 2015 28,732 miles

How Reliable is the Kia Rio?

Based on 1,637,344 MOT tests across 141,212 vehicles.

76.2%
Pass Rate
5,503
Miles/Year
25
Year Lifespan
141,212
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 34,517
Windscreen wiper does not clear the windscreen effectively 20,812
Brake pipe excessively corroded 18,703
position lamp(s) not working 14,100
Registration plate lamp not working 12,829
Full Kia Rio reliability report

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ST12 KMZ is a 2012 Kia Rio in Black with a 1,248cc petrol engine. This vehicle has been through 16 MOT tests with a personal pass rate of 75%.

Across all 2012 Kia Rio models, the average MOT pass rate is 75.5% with a typical mileage of 57,620 miles. This particular vehicle has a lower pass rate than the average for its year, which may indicate maintenance issues worth investigating.

The most common reason a Kia Rio fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 34,517 recorded failures. If you're considering buying ST12 KMZ, it's worth having these areas checked by a mechanic before committing.

The Kia Rio typically stays on UK roads for around 25 years. At 14 years old, this Kia Rio is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of ST12 KMZ?

You can check the full history of ST12 KMZ by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was ST12 KMZ registered?

ST12 KMZ is a 2012 Kia Rio, first registered on 10 May 2012.

Is ST12 KMZ safe to buy?

The MOT history for ST12 KMZ shows 16 tests with a 75% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does ST12 KMZ 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 ST12 KMZ. 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.