Mazda 323: MOT pass rate and reliability data

The Mazda 323 fails its first MOT more often than the average UK car, by 13.9 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 1,354 individual Mazda 323 tests. Nothing here is an estimate or a survey.

The numbers

What this means if you are buying one

A 62.8% first-time pass rate means roughly 37 in every 100 Mazda 323s presented for MOT fail on the first attempt. That is worse than average, so budget for remedial work and treat a fresh 12-month MOT as a genuine selling point rather than a given. The average Mazda 323 tested had covered 83,134 miles and was built around 1999.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. The Mazda 323 sits 13.9 points below the national average, ranked 1,900 of 2,005 models. On one bought as repairable salvage, assume the mechanical side needs more than the visible accident damage, and pad your repair estimate accordingly.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific Mazda 323 rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see recorded closing bids for damaged Mazda 323s at UK salvage auction.

Most common MOT failures on a Mazda 323

1. Body, cab or chassis excessively corroded at a mounting point, 4.5% of tests (19.67x the national rate for this defect)
2. The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired, 17.8% of tests (18.85x the national rate for this defect)
3. The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired, 3.5% of tests (13.27x the national rate for this defect)
4. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 5.4% of tests (13.04x the national rate for this defect)
5. Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., 2.3% of tests (4.38x the national rate for this defect)
6. Significant brake effort recorded with no brake applied indicating a binding brake, 3.6% of tests (3.49x the national rate for this defect)
7. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 6.3% of tests (3.41x the national rate for this defect)
8. Exhaust system leaking or insecure, 3% of tests (2.92x the national rate for this defect)
9. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 3.2% of tests (2.07x the national rate for this defect)
10. Wiper blade missing or obviously not clearing the windscreen, 3.5% of tests (1.82x the national rate for this defect)

From 1,354 DVSA-tracked Mazda 323 tests, 2024. DVSA testers marked 3.44% of these flagged Mazda 323 defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 5.11% nationally.

Most common MOT advisories on a Mazda 323

An advisory doesn't fail the car - the tester flags it as worth watching, but it still passes. A different list from the failures above: what testers are noting on a Mazda 323 before it actually fails on it.

1. The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired, 15.6% of tests (10.26x the national rate for this advisory), also fails
2. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 12.3% of tests (9.91x the national rate for this advisory), also fails
3. A suspension component excessively damaged or corroded, 25.6% of tests (4.94x the national rate for this advisory)
4. Number plate inscription missing or illegible, 8.9% of tests (3.37x the national rate for this advisory)
5. Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, 16.2% of tests (2.92x the national rate for this advisory)
6. Brake pipe damaged or excessively corroded, 17.2% of tests (2.78x the national rate for this advisory)
7. Significant brake effort recorded with no brake applied indicating a binding brake, 5.4% of tests (2.7x the national rate for this advisory), also fails
8. Exhaust system leaking or insecure, 7.4% of tests (2.6x the national rate for this advisory), also fails
9. A suspension pin, bush or joint excessively worn, 31.3% of tests (2.34x the national rate for this advisory)
10. A spring or spring component fractured or seriously weakened, 10.6% of tests (2.25x the national rate for this advisory)

From 1,354 DVSA-tracked Mazda 323 tests, 2024.

Other Mazda models

• Mazda 2 - 73.4%
• Mazda 3 - 73.4%
• Mazda Mx-5 - 77.2%
• Mazda 6 - 74%
• Mazda Cx-5 - 83.1%
• Mazda Cx-3 - 88%
• Mazda 5 - 59%
• Mazda Bongo - 58.1%

Models with a similar pass rate

• Hyundai Terracan - 63%
• Jaguar X-Type - 62.9%
• Kia Magentis - 62.9%
• Nissan D22 - 62.7%
• Rover 75 - 62.6%
• Nissan Terrano - 62.6%

If this car is a salvage or write-off

• What does Cat N mean? Category N explained
• What does Cat S mean? Category S explained
• Cat S vs Cat N: the real differences
• Do you need an HPI check on a car you know is a write-off?

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All 2,005 models ranked by MOT pass rate