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ST12 JCZ

2012 Mazda 6

Black Diesel 2183cc
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MOT Status

Valid
Expires19 Dec 2026
Tests17 (11 pass, 6 fail)
Pass rate64.7%

Mileage

118,801 mi
Last recorded118,801 miles
Recorded on16 Dec 2025
Typical for 2012 Mazda 674,301 mi

Significantly above average — investigate

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

RegistrationST12 JCZ
MakeMazda
Model6
Year2012
ColourBlack
Fuel typeDiesel
Engine2,183cc

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

11 pass 6 fail
Pass 16 Dec 2025 118,801 miles

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

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

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

Pass 29 Nov 2024 101,666 miles
Fail 29 Nov 2024 101,665 miles

Offside Rear Brake pipe excessively corroded (1.1.11 (c))

Nearside Rear Brake pipe leaking on a hydraulic braking system Brake pipe burst (1.1.11 (b) (ii)) DANGEROUS

Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) DANGEROUS

Service brake efficiency less than 50% of the required value (1.2.2 (a) (ii)) DANGEROUS

Pass 20 Dec 2023 99,649 miles

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

Nearside Front Tyre worn close to legal limit/worn on edge Worn On Outer Edge (5.2.3 (e))

Nearside Rear Nail in tyre ()

Nearside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Front Tyre worn close to legal limit/worn on edge Worn On Outer Edge (5.2.3 (e))

Offside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

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

Fail 14 Dec 2023 99,593 miles

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

Offside Rear Anti-roll bar linkage ball joint likely to become detached Detached (5.3.4 (a) (ii)) DANGEROUS

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

Nearside Front Tyre worn close to legal limit/worn on edge Worn On Outer Edge (5.2.3 (e))

Nearside Rear Nail in tyre ()

Nearside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

Offside Front Tyre worn close to legal limit/worn on edge Worn On Outer Edge (5.2.3 (e))

Offside Rear Suspension arm corroded but not seriously weakened (5.3.3 (b) (i))

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

Pass 19 Dec 2022 96,094 miles

Brake pipe corroded, covered in grease or other material o/s,n/s front to rear (1.1.11 (c))

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

Fail 19 Dec 2022 96,094 miles

Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))

Brake pipe corroded, covered in grease or other material o/s,n/s front to rear (1.1.11 (c))

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

Pass 17 Dec 2021 91,541 miles

Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Fail 17 Dec 2021 91,541 miles

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

Offside Registration plate lamp inoperative in the case of multiple lamps or light sources (4.7.1 (b) (i))

Pass 3 Dec 2020 83,631 miles
Pass 31 May 2019 73,536 miles

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

Pass 14 Jun 2018 65,200 miles

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

Offside Front Service brake binding but not excessively (1.2.1 (f))

Offside Front Service brake fluctuating, but not excessively (1.2.1 (e))

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

Fail 14 Jun 2018 65,200 miles

Nearside Front Windscreen wiper does not clear the windscreen effectively 16wbbr (3.4 (b) (ii))

Offside Front Windscreen wiper does not clear the windscreen effectively 24wbbr (3.4 (b) (ii))

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

Offside Front Service brake binding but not excessively (1.2.1 (f))

Offside Front Service brake fluctuating, but not excessively (1.2.1 (e))

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

Pass 10 Jun 2017 55,252 miles
Pass 26 May 2016 48,585 miles

covers restricting view

Fail 26 May 2016 48,584 miles

Offside Front front brake excessively fluctuating (3.7.B.3)

front brake application uneven (3.7.B.2)

front brakes release unevenly (3.7.B.4)

covers restricting view

Pass 3 Jun 2015 36,117 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 JCZ is a 2012 Mazda 6 in Black with a 2,183cc diesel engine. This vehicle has been through 17 MOT tests with a personal pass rate of 64.7%.

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 JCZ, 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 JCZ?

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

What year was ST12 JCZ registered?

ST12 JCZ is a 2012 Mazda 6, first registered on 19 June 2012.

Is ST12 JCZ safe to buy?

The MOT history for ST12 JCZ shows 17 tests with a 64.7% pass rate. To check for outstanding finance, stolen markers, write-off history and mileage discrepancies, run a full vehicle check.

Does ST12 JCZ 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 JCZ. 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.