Mazda Demio

Reliability, estimated running costs, and MOT data across 8 model years from 1,154 MOT tests in 2024.

Avg Pass Rate

76%

Total Tests

1,154

Highest Pass Rate

2000 (75%)

Years Covered

About the Mazda Demio

The Mazda Demio was MOT tested 1,154 times in 2024 (DVSA data, retests included) across 8 model years (1998 to 2013), with an average pass rate of 76%. That's 6 points below the average of 82% across all models in our data, so check the year-by-year data carefully before buying. Our records list petrol versions.

Best and Worst Years

Of the years with at least 100 tests, the 2000 model has the highest pass rate at 75% from 220 tests. The 2003 model has the lowest at 69%. The 6 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.

Reliability Trend

The Mazda Demio has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.

Mileage Across Years

The oldest model in our data (1998) averages 75,081 miles, while the newest (2013) averages 46,564 miles.

Compared to the Mazda brand average of 81%, the Demio is 5 points lower, placing it among the less reliable Mazda models.

Estimated Running Costs

Fuel (Petrol, 1300cc)

£1,398

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£1,853

Per month£154/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2013 details

How reliable is the Mazda Demio?

vs average of all models-6% (82% avg)

vs Mazda brand average-5% (81% avg)

Best to worst year spread6 percentage points

Reliability trendStable over years

Mazda Demio by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

Year	Pass Rate	Tests	Avg Mileage
2013	97%	31	46,564 mi
2010	70%	54	62,821 mi
2003	69%	111	74,111 mi
2002	73%	221	72,784 mi
2001	73%	198	66,850 mi
2000	75%	220	73,264 mi
1999	71%	231	78,427 mi
1998	76%	88	75,081 mi

Questions about the Mazda Demio

Is the Mazda Demio reliable?

Across its 8 model years in our data (1998 to 2013), the Mazda Demio averages a 76% MOT pass rate, from 1,154 tests (DVSA MOT data for tests in 2024, retests included). That's 6 points below the average of 82% across all models in the same data. The 2000 model has the highest pass rate of the years with at least 100 tests, at 75%.

Which year Mazda Demio has the best MOT pass rate?

Of the years with at least 100 tests, the 2000 Mazda Demio has the highest MOT pass rate at 75%, while the 2003 model has the lowest at 69%, a 6 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.