Mazda Demio: MOT pass rate and reliability data

The Mazda Demio fails its first MOT more often than the average UK car, by 9.9 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 620 individual Mazda Demio tests. Nothing here is an estimate or a survey.

The numbers

What this means if you are buying one

A 66.8% first-time pass rate means roughly 33 in every 100 Mazda Demios 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 Demio tested had covered 70,276 miles and was built around 2003.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. On a Mazda Demio bought as a 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 Demio 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 what damaged Mazda Demios actually sold for at UK salvage auction.

Most common MOT failures on a Mazda Demio

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, 16.2% of tests (19.45x the national rate for this defect)
2. Body, cab or chassis excessively corroded at a mounting point, 2.8% of tests (13.98x the national rate for this defect)
3. Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, 3.7% of tests (10.11x the national rate for this defect)
4. 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, 2.3% of tests (10.08x the national rate for this defect)
5. Emissions levels exceed default limits, 2% of tests (6.95x the national rate for this defect)
6. A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc, 6% of tests (5.35x the national rate for this defect)
7. Significant brake effort recorded with no brake applied indicating a binding brake, 2.5% of tests (3.28x the national rate for this defect)
8. Brake pipe damaged or excessively corroded, 1.9% of tests (2.34x the national rate for this defect)
9. The aim of a headlamp is not within limits laid down in the requirements, 3.8% of tests (2.14x the national rate for this defect)
10. A suspension joint dust cover missing or no longer prevents the ingress of dirt etc, 2.8% of tests (2.08x the national rate for this defect)

From 1,034 DVSA-tracked Mazda Demio tests, 2024. DVSA testers marked 3.38% of these flagged Mazda Demio defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

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

• Alfa Romeo Mito - 66.8%
• Daihatsu Sirion - 66.8%
• Ssangyong Rodius - 66.8%
• SEAT Arosa - 66.7%
• Fiat Coupe - 66.7%
• Toyota Celica - 66.6%

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

Embed this data

Run a site about the Mazda Demio? Embed the real DVSA pass-rate badge free, linked back to this page.

<a href="https://www.salvageprophet.co.uk/mot/mazda-demio"><img src="https://www.salvageprophet.co.uk/badge/mazda-demio.svg" width="340" height="92" alt="Mazda Demio MOT Pass Rate: 66.8% - Salvage Prophet"></a>

All 2,005 models ranked by MOT pass rate