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BU21 ECT

2021 Mazda 3

Grey Petrol 1998cc
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MOT Status

Valid
Expires6 May 2027
Tests4 (3 pass, 1 fail)
Pass rate75%

Mileage

37,873 mi
Last recorded37,873 miles
Recorded on5 May 2026
Typical for 2021 Mazda 325,425 mi

Significantly above average — investigate

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

RegistrationBU21 ECT
MakeMazda
Model3
Year2021
ColourGrey
Fuel typePetrol
Engine1,998cc

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

3 pass 1 fail
Pass 5 May 2026 37,873 miles

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

Pass 7 May 2025 30,074 miles

Nearside Front Outer Road wheel slightly distorted rim (5.2.2 (c) (i))

Nearside Front Outer Tyre slightly damaged sidewall (5.2.3 (d) (ii))

Nearside Rear 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 16 Apr 2024 22,213 miles
Fail 15 Apr 2024 22,212 miles

Offside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))

Windscreen washer not working (3.5 (a))

Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii)) DANGEROUS

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

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

n/s/f tyre wearing on edges

o/s/f tyre wearing on edges

How Reliable is the Mazda 3?

Based on 2,040,939 MOT tests across 164,053 vehicles.

77.5%
Pass Rate
6,292
Miles/Year
22
Year Lifespan
164,053
On UK Roads

Top MOT Failure Points

Tyre tread depth below requirements of 1.6mm 40,716
Brake pad(s) less than 1.5 mm thick 18,089
position lamp(s) not working 17,568
Suspension arm rubber bush deteriorated resulting in excessive movement 13,995
Windscreen wiper does not clear the windscreen effectively 11,940
Full Mazda 3 reliability report

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BU21 ECT is a 2021 Mazda 3 in Grey with a 1,998cc petrol engine. This vehicle has been through 4 MOT tests with a personal pass rate of 75%.

Across all 2021 Mazda 3 models, the average MOT pass rate is 89.8% with a typical mileage of 25,425 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 3 fails its MOT is tyre tread depth below requirements of 1.6mm, accounting for 40,716 recorded failures. If you're considering buying BU21 ECT, it's worth having these areas checked by a mechanic before committing.

The Mazda 3 typically stays on UK roads for around 22 years. At 5 years old, this Mazda 3 is still in the earlier part of its expected life.

Frequently Asked Questions

How do I check the history of BU21 ECT?

You can check the full history of BU21 ECT by running a full vehicle check. This shows you finance, stolen, write-off, MOT history, mileage records and more.

What year was BU21 ECT registered?

BU21 ECT is a 2021 Mazda 3, first registered on 27 April 2021.

Is BU21 ECT safe to buy?

The MOT history for BU21 ECT shows 4 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 BU21 ECT 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 BU21 ECT. 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.