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ST12 KWZ

2012 Mazda 6

Blue Petrol 1798cc
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MOT Status

Valid
Expires30 Sep 2026
Tests12 (9 pass, 3 fail)
Pass rate75%

Mileage

82,969 mi
Last recorded82,969 miles
Recorded on1 Oct 2025
Typical for 2012 Mazda 674,301 mi

Above average mileage for this year

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

RegistrationST12 KWZ
MakeMazda
Model6
Year2012
ColourBlue
Fuel typePetrol
Engine1,798cc

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

9 pass 3 fail
Pass 1 Oct 2025 82,969 miles

Front subframe corroded

Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Nearside Front Upper Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Offside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Fail 30 Sep 2025 82,969 miles

Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Offside Front Anti-roll bar linkage insecurely attached (5.3.3 (a) (i))

Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Offside Rear Anti-roll bar linkage insecurely attached (5.3.3 (a) (i))

Front subframe corroded

Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Nearside Front Upper Suspension arm ball joint dust cover severely deteriorated (5.3.4 (b) (i))

Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Offside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))

Pass 25 Jul 2022 76,418 miles

Nearside Rear Suspension component mounting prescribed area is corroded but not considered excessive inner sill (5.3.6 (a) (i))

Offside Front Wheel bearing has slight play (5.1.3 (a) (i))

Offside Rear Suspension component mounting prescribed area is corroded but not considered excessive inner sill (5.3.6 (a) (i))

front suspension rusty

plastic covers on sills

rear suspension rusty

Fail 28 Jun 2022 76,382 miles

Brake performance not tested (1.2.1 (g))

Brake pipe excessively corroded nearside front to rear at rear (1.1.11 (c))

Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i))

Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))

Brake pipe leaking on a hydraulic braking system offside front to rear at rear (1.1.11 (b) (ii)) DANGEROUS

Offside Rear Inner Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii)) DANGEROUS

Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

Nearside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))

Offside Front Brake pipe corroded, covered in grease or other material (1.1.11 (c))

Offside Front Wheel bearing has slight play (5.1.3 (a) (i))

Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))

heatshield insecure

sills covered making inspection difficult

underneath vehicle showing signs of corrosion

Pass 24 Jun 2021 67,017 miles

Brake disc worn, pitted or scored, but not seriously weakened both front inner (1.1.14 (a) (ii))

Brake pipe corroded, covered in grease or other material all pipes painted (1.1.11 (c))

Offside Rear Outer Brake pad(s) wearing thin (1.1.13 (a) (ii))

Fail 24 Jun 2021 67,007 miles

Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i))

Brake disc worn, pitted or scored, but not seriously weakened both front inner (1.1.14 (a) (ii))

Brake pipe corroded, covered in grease or other material all pipes painted (1.1.11 (c))

Nearside Front Wheel bearing has slight play (5.1.3 (a) (i))

Offside Rear Outer Brake pad(s) wearing thin (1.1.13 (a) (ii))

Pass 23 Jun 2020 59,468 miles
Pass 3 Jul 2019 49,409 miles
Pass 6 Jul 2018 38,622 miles
Pass 5 Jun 2017 24,437 miles
Pass 1 Jun 2016 18,306 miles
Pass 23 Jun 2015 14,541 miles

How Reliable is the Mazda 6?

Based on 1,904,140 MOT tests across 159,651 vehicles.

75.4%
Pass Rate
7,713
Miles/Year
24
Year Lifespan
159,651
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 45,082
position lamp(s) not working 38,980
Brake pad(s) less than 1.5 mm thick 34,576
Registration plate lamp not working 29,515
Windscreen wiper does not clear the windscreen effectively 28,494
Full Mazda 6 reliability report

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ST12 KWZ is a 2012 Mazda 6 in Blue with a 1,798cc petrol engine. This vehicle has been through 12 MOT tests with a personal pass rate of 75%.

Across all 2012 Mazda 6 models, the average MOT pass rate is 78.0% with a typical mileage of 74,301 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 Mazda 6 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 45,082 recorded failures. If you're considering buying ST12 KWZ, it's worth having these areas checked by a mechanic before committing.

The Mazda 6 typically stays on UK roads for around 24 years. At 14 years old, this Mazda 6 is well into its expected lifespan but still has years ahead.

Frequently Asked Questions

How do I check the history of ST12 KWZ?

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

What year was ST12 KWZ registered?

ST12 KWZ is a 2012 Mazda 6, first registered on 28 June 2012.

Is ST12 KWZ safe to buy?

The MOT history for ST12 KWZ shows 12 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 KWZ 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 KWZ. 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.