Should I check the MOT history before buying a 2004 Mazda 3?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2004 Mazda 3?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2004 Mazda 3?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

How many 2004 Mazda 3 vehicles have had dangerous defects recorded?

32% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 2004 Mazda 3 reliable?

Based on MOT data from 9,145 vehicles, the 2004 Mazda 3 has a first-time MOT pass rate of 75.3%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 2004 Mazda 3?

The most frequently recorded MOT issues on the 2004 Mazda 3 are: Nearside Front Tyre worn close to the legal limit (84.9% of vehicles), Offside Front Tyre worn close to the legal limit (77.9% of vehicles), Nearside Rear Tyre worn close to the legal limit (52.9% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 2004 Mazda 3?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Mazda 3 (2004)

9,145 real MOT outcomes analysed • 75.3% first-time pass rate

2004 Mazda 3

CarHunch analysed 9,145 real MOT records for the 2004 Mazda 3. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

On this page

AI Analysis Reliability Overview Common Issues Check a Specific Reg Petrol vs Diesel Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2004 Mazda 3 falls noticeably short of the UK average with a 75.3% first-time pass rate against the 80% benchmark, and that gap widens into a real concern: nearly a third of these cars (32.1%) have recorded a dangerous defect at some point, which is well above acceptable for a buyer. Petrol and diesel variants perform similarly—75.5% and 73.0% respectively—so fuel type won't solve the issue here.

These cars are running at around 71,700 miles on average, reasonable for their age, but the high failure count of nearly 4 per vehicle and 21 advisories each point to worn components catching up with age. Before buying, get a pre-purchase inspection that specifically checks suspension, steering, and brake systems, since those are the areas where dangerous defects cluster on this generation.

The 2004 Mazda 3 has a decent first-time pass rate (75.3%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ 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

75.3%

UK average ~80%

Around average

Dangerous (ever)

32.2%

At least once in MOT history

Check this vehicle

Avg failures / car

3.98

Over 15.2 tests on record

High

Typical mileage

70k

Middle half: 55k–84k

For context

🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.

🔧 Expect consumable spend. An average of 21 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 9,145 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.

Watch for defects — worth knowing

What tends to go wrong

Across 9,145 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 84.9%

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.

Brake wear 46.1%

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.

Suspension & steering 32.7%

Nearside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement · Offside Front Suspension arm rubber bush deteriorated but not resulting in excessive movement

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Other issues 30.3%

Child seat fitted not allowing full inspection of adult belt · Rear Sub-frame corroded but not seriously weakened · Under-trays fitted obscuring some underside components · …

Data covers a 3-year window centred on 2004.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 9,145 Mazda 3 cars.

Petrol vs Diesel

Pass rate difference of 2.5 percentage points — worth knowing if you're choosing between the two.

75.5%

Petrol

8,414 vehicles

73%

Diesel

728 vehicles

Before you buy a 2004 Mazda 3

Based on MOT data from 9,145 vehicles — here's what to check.

📋 Check the full MOT history. 32.2% 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (92%)	8,414	75.5%	4
Diesel (8%)	728	73%	3.74

Colour Breakdown

Based on 162,087 Mazda 3 vehicles registered in the UK — across all years. From DVLA registration records.

Blue 23.1%

37,420

Grey 19%

30,747

Silver 18.1%

29,403

Red 16.5%

26,683

Black 13.2%

21,382

White 9.4%

15,266

Green 0.4%

671

Purple 0.3%

449

Bronze 0%

Brown 0%

Multi-colour 0%

Maroon 0%

Mileage Distribution

Most 2004 Mazda 3 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.

69,541

typical

55,459

low mileage

84,241

high mileage

Half of all 2004 Mazda 3 vehicles fall between 55,459 and 84,241 miles.

Is the mileage you're seeing normal?

✓ Under 55,459 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.

✓ 55,459–84,241 miles — normal for age. This is where most 2004 Mazda 3s sit.

⚠ Over 113,725 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2004 Mazda 3 — Still on the Road

Numbers are thinning — 7% of 2004 Mazda 3s are still active.

Numbers are declining — 527 vehicles still getting MOTs in 2025 (7% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* 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

15.2

Avg MOT tests per vehicle

3.98

Avg failures per vehicle

Avg advisories per vehicle

Other model years — Mazda 3: All 3 years → Which year to buy? →

2003 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023

Or browse all models: Mazda →

Compare with another model

See how the 2004 Mazda 3 stacks up against a rival.

Watch for defects — worth knowing