Mazda 323
Reliability, estimated running costs, and MOT data across 14 model years from 3,117 MOT tests in 2024.
Avg Pass Rate
72%
Total Tests
3,117
Highest Pass Rate
1996 (76%)
Years Covered
14
About the Mazda 323
The Mazda 323 was MOT tested 3,117 times in 2024 (DVSA data, retests included) across 14 model years (1990 to 2003), with an average pass rate of 72%. That's 10 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 1996 model has the highest pass rate at 76% from 144 tests. The 2002 model has the lowest at 64%. The 12 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
Older Mazda 323s tend to have better MOT pass rates than newer ones, with an average decline of 6 percentage points across model years.
Mileage Across Years
The oldest model in our data (1990) averages 80,330 miles, while the newest (2003) averages 71,605 miles.
Compared to the Mazda brand average of 81%, the 323 is 9 points lower, placing it among the less reliable Mazda models.
Estimated Running Costs
Higher due to low pass rate
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 2003 detailsHow reliable is the Mazda 323?
Mazda 323 by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
Questions about the Mazda 323
Is the Mazda 323 reliable?
Across its 14 model years in our data (1990 to 2003), the Mazda 323 averages a 72% MOT pass rate, from 3,117 tests (DVSA MOT data for tests in 2024, retests included). That's 10 points below the average of 82% across all models in the same data. The 1996 model has the highest pass rate of the years with at least 100 tests, at 76%.
Which year Mazda 323 has the best MOT pass rate?
Of the years with at least 100 tests, the 1996 Mazda 323 has the highest MOT pass rate at 76%, while the 2002 model has the lowest at 64%, a 12 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Are newer Mazda 323s more reliable?
Older Mazda 323s tend to have better MOT pass rates than newer ones, with an average decline of 6 percentage points across model years.
Mazda 323 Guides & Articles
Most Reliable Used Cars UK 2026 (Ranked With Real MOT Data)
11 min read
Reliability20 Most Reliable Used Cars UK 2026: Real MOT Pass Rate Rankings
10 min read
Buying GuideCars That Hold Their Value UK 2026 (Up to 78% After 3 Years)
10 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Common Problems: 7 Issues That Could Cost £1,500+ (2026)
13 min read
Checking a specific Mazda 323?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.