Should I check the MOT history before buying a 2004 Mini One D?

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 Mini One D?

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 Mini One D?

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.

Is the 2004 Mini One D reliable?

Based on MOT data from 126 vehicles, the 2004 Mini One D has a first-time MOT pass rate of 74.4%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2004 Mini One D?

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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Mini One D (2004)

126 real MOT outcomes analysed • 74.4% first-time pass rate

2004 Mini One D

CarHunch analysed 126 real MOT records for the 2004 Mini One D. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

The 2004 MINI ONE D has a first-time MOT pass rate of 59.6%, nearly 21 percentage points below the UK average of 80%, which signals reliability concerns for this ageing diesel model. The dangerous defect rate is mercifully low at 0.8%, so catastrophic failures are rare, but the median CarHunch score of 50 reflects a vehicle that's genuinely high-risk on the secondhand market.

These diesels are running at 136,913 miles median—typical for their age—yet averaging 1.19 failures and 0.9 advisories per test, suggesting wear-related problems are mounting steadily. Before buying one, get a full diagnostic report on the fuel system and turbo, as diesel-specific components on this generation are prone to costly repairs once problems start.

We have limited data for the 2004 Mini One D — treat the figures below as indicative rather than definitive.

First-time pass

74.4%

UK average ~80%

Below average

Dangerous (ever)

0.8%

At least once in MOT history

Check this vehicle

Avg failures / car

1.19

Over 4.2 tests on record

High

Typical mileage

137k

Middle half: 105k–154k

For context

These stats describe 126 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

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 126 Mini One D cars.

Before you buy a 2004 Mini One D

Based on MOT data from 126 vehicles — here's what to check.

📋 Check the full MOT history. 0.8% 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
Diesel (99%)	125	74.5%	1.18

Mileage Distribution

Most 2004 Mini One D 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.

136,913

typical

104,679

low mileage

153,751

high mileage

Half of all 2004 Mini One D vehicles fall between 104,679 and 153,751 miles.

Is the mileage you're seeing normal?

✓ Under 104,679 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.

✓ 104,679–153,751 miles — normal for age. This is where most 2004 Mini One Ds sit.

⚠ Over 207,563 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2004 Mini One D — Still on the Road

Numbers are thinning — 22% of 2004 Mini One Ds are still active.

Numbers are declining — 16 vehicles still getting MOTs in 2025 (22% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
* 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

4.2

Avg MOT tests per vehicle

1.19

Avg failures per vehicle

0.9

Avg advisories per vehicle

Other model years — Mini One D: All One D years → Which year to buy? →

2003 2005 2010 2011 2012 2013 2014 2016

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Compare with another model

See how the 2004 Mini One D stacks up against a rival.

Buyer beware — pass it on