Mazda

Mazda 323 (2003)

6,103 real MOT outcomes analysed • 73.2% first-time pass rate

2003 Mazda 323

CarHunch analysed 6,103 real MOT records for the 2003 Mazda 323. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2003 Mazda 323 passes its MOT at 73.2%, well below the UK average of 80%, and nearly a third of these cars have recorded dangerous defects at some point—a significant concern for any buyer. Diesel versions fare slightly worse at 69.9% pass rate compared to petrol's 73.4%, suggesting fuel type offers little reliability advantage here.

At around 58,000 miles median, these 20-year-old cars show relatively modest mileage, yet they're still racking up nearly 4 failures per test and 17 advisories, indicating age-related wear is catching up fast. Before buying, get a full pre-purchase inspection and budget for imminent work on brakes, suspension, and exhaust—the typical problem areas for this generation.

The 2003 Mazda 323 has a below-average first-time pass rate (73.2% vs ~80% UK average) — check the specific vehicle's full MOT history carefully before buying.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
73.2%
UK average ~80%
Below average
Dangerous (ever)
29.3%
At least once in MOT history
Check this vehicle
Avg failures / car
3.94
Over 14.1 tests on record
High
Typical mileage
58k
Middle half: 46k–72k
For context
⚠️ Below average. More vehicles in this cohort fail their first MOT than typical. Scrutinise this vehicle's history — look for recurring issues, not just the latest result.
🔧 Expect consumable spend. An average of 17.2 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 6,103 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Buyer beware — pass it on

What tends to go wrong

Across 6,103 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 73.3%
Nearside Front Tyre worn close to the legal limit · Offside Front Tyre worn close to the legal limit · Nearside Rear Tyre worn close to the legal limit · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Suspension & steering 38.4%
Nearside Front Shock absorber has a light misting of oil · Offside Front Shock absorber has a light misting of oil · Nearside Rear Anti-roll bar linkage has slight play in a ball joint · …
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.
Brake wear 29.4%
Parking brake: efficiency below requirements · Front Brake pad(s) wearing thin · Rear Brake pad(s) wearing thin · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Other issues 28.7%
Oil leak

Data covers a 3-year window centred on 2003.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 6,103 Mazda 323 cars.

UK

Before you buy a 2003 Mazda 323

Based on MOT data from 6,103 vehicles — here's what to check.

  • 📋 Check the full MOT history. 29.3% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (94%) 5,759 73.4% 3.92
Diesel (6%) 342 69.9% 4.27

Colour Breakdown

Based on 92,513 Mazda 323 vehicles registered in the UK — across all years. From DVLA registration records.

Silver 25.9%
23,920
Red 20.2%
18,647
Blue 19.8%
18,292
Green 16.2%
14,950
White 9%
8,361
Black 5.1%
4,726
Grey 2.3%
2,116
Gold 0.9%
816
Brown 0.4%
387
Beige 0.2%
163
Yellow 0.1%
68
Maroon 0.1%
67

Mileage Distribution

Most 2003 Mazda 323 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

58,445
typical
46,101
low mileage
72,012
high mileage

Half of all 2003 Mazda 323 vehicles fall between 46,101 and 72,012 miles.

Is the mileage you're seeing normal?
Under 46,101 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
46,101–72,012 miles — normal for age. This is where most 2003 Mazda 323s sit.
Over 97,216 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2003 Mazda 323 — Still on the Road

Numbers are thinning — 6% of 2003 Mazda 323s are still active.

Numbers are declining — 278 vehicles still getting MOTs in 2023 (6% of peak).

4,372 278 2014 2023

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2023.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

14.1
Avg MOT tests per vehicle
3.94
Avg failures per vehicle
17.2
Avg advisories per vehicle
Other model years — Mazda 323: All 323 years → Which year to buy? →
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Buyer beware — pass it on