Model Reports 8 min read Updated 11 Sep 2026 DVSA open data · 14,270 tests analysed

MINI Hatch 2004: reliability & common MOT faults

6,418 first-attempt MOT failures were recorded on the 2004 MINI Hatch in 2025. The items recorded most often on them were Headlamp aim and Drive shafts — Joints (front). Figures are among first-attempt failed MOT tests, not among all tests.

Petrol Hatchs passed first time 4.2 pp more often than diesel ones (55.1% of 13,954 vs 50.9% of 316).

First-attempt pass

55.0%

of 14,270 first tests (2025)

First tests

14,270

test year 2025

Failed first attempts

6,418

failed first-attempt tests

Most common fail

13.2%

Headlamp aim

MOT pass rates

First-attempt and official-style rates among class 4 first tests of the year.

First-attempt pass

55.0%

of 14,270 first tests (2025)

Official-style pass

61.7%

incl. same-day PRS fixes

First tests

14,270

class 4 · first MOT of the year

Typical age 21.0 yrs · median mileage 102,573 mi

vs 2024: +1.7 pp first-attempt

Note:

  • Class 4 cars · first MOT of the year per vehicle · P/PRS/F outcomes (2025 data).
  • PRS (fixed at the station the same day) counts as a fail in the first-attempt rate.
  • Raw outcomes for this cohort — not adjusted for age, mileage, or peer mix.
  • MOT doesn't test engine or gearbox internals.

Common faults

Failure patterns that show up more often on this registration year than on similar cars.

These MOT failure patterns show up more often on this registration year than on similar cars of the same class, age, and mileage.

Shares below are measured across the 6,413 of 6,418 failed first attempts (99.9%) that recorded an odometer reading in 2025 — the subset the age-and-mileage comparison can be computed on.

Standout: Fuel cap/sealing device — 4.4% of this year's failed first attempts

Recorded on 280 of those tests. It tops the table on elevation — about 8.4× more often than on similar cars of the same age and mileage. That is what makes it unusual for its class, which is a different question from what is most likely to fail; the buying checklist ranks by that. The full ranked list is in the table below.

Fault pattern Location Failures vs similar cars Share of fails Confidence
Fuel cap/sealing device
Body, chassis, structure > Fuel system > Fuel cap/sealing device
 Any 280 ×8.4 4.4% Strong
Wheel bearings (front)
Suspension > Wheel bearings
 Front 453 ×4.8 7.1% Likely
Rigid brake pipes (front)
Brakes > Rigid brake pipes
 Front 445 ×3.1 6.9% Likely
Individual direction indicators (front)
Lamps, reflectors and electrical equipment > Direction indicators > Flashing type > Individual direction indicators
 Front 257 ×2.6 4.0% Possible
Pins and bushes (front)
Suspension > Suspension arms > Pins and bushes
 Front 509 ×2.1 7.9% Possible
Exhaust system (rear)
Body, chassis, structure > Exhaust system
 Rear 324 ×2.1 5.1% Possible
Track rod end
Steering > Steering linkage components > Track rod end
 Any 240 ×2.0 3.7% Possible

Only patterns that clear minimum sample and elevation thresholds are shown (at least 20 failures and about 2.0× more often than similar cars).

Note: Rates and comparisons are among first-attempt failed tests, not all MOTs. Patterns come from MOT defect codes — not manufacturer service bulletins, recalls, or a diagnosis of any individual car. Failures and advisories are listed separately.

Wear patterns

Usage and mileage effects that often track road use rather than model design.

These patterns look like wear or usage effects rather than model-specific design faults. Tyres, brake friction material, and alignment-related defects often track mileage and road use.

Pattern Location Failures vs similar cars Share of fails Confidence
Brake discs (rear)
Brakes > Mechanical brake components > Brake discs and drums > Brake discs
 Rear 139 ×2.5 2.2% Wear
Note: These patterns are not treated as a model design fault in our common-faults ranking.

Advisories

Notes recorded at the test that appear more often than on similar cars.

Advisory notes recorded on failed first-attempt tests that appear more often than on similar cars.

Advisory pattern Location Notes vs similar cars Share Confidence
Power steering — Pump
Steering > Power steering > Pump
 Any 64 ×14 1.0% Elevated
Pipes and hoses (front)
Steering > Power steering > Pipes and hoses
 Front 349 ×8.9 5.4% Likely
Macpherson strut (rear)
Suspension > Macpherson strut > Macpherson strut
 Rear 45 ×8.6 0.7% Elevated
Hydraulic fluid leaks
Noise, emissions and leaks > Fluid leaks > Hydraulic fluid leaks
 Any 29 ×6.8 0.5% Elevated
Service brake performance (rear)
Brakes > Brake performance > Service brake performance > Plate brake tester > Service brake performance
 Rear 136 ×3.7 2.1% Elevated
Other components (front)
Steering > Power steering > Other components
 Front 132 ×3.7 2.1% Possible
Other leaks
Noise, emissions and leaks > Fluid leaks > Other leaks
 Any 37 ×3.2 0.6% Elevated
Rigid brake pipes (front)
Brakes > Rigid brake pipes
 Front 1,280 ×2.9 20.0% Likely
Note: Advisories are not a fail rate — they flag issues noted at the test, often before they become failures.

If you are buying one

What this year's MOT record means for the decision in front of you.

On this year, prefer the petrol. The diesel cars passed first time 4.2 pp less often, on 316 tests.

What to check on a 2004 Hatch

The items that failed 2004 Hatchs most often, as a share of the year's failed first attempts. This is what goes wrong, not what is unusual — the table further up the page covers that.

  • Headlamp aim — recorded on 13.2% of failed first attempts
  • Drive shafts — Joints (front) — recorded on 10.7% of failed first attempts
  • Position lamp (front) — recorded on 10.0% of failed first attempts
  • Track rod end (front) — recorded on 8.5% of failed first attempts
  • Rbt (sp) — recorded on 8.2% of failed first attempts

Every figure here is a first-attempt MOT rate from DVSA open data for this model line. MOTs do not test engine or gearbox internals, so this is a pre-purchase checklist, not a full reliability score.

FAQs

Short answers about how to read this model-year guide.

Petrol Hatchs passed first time 4.2 pp more often than diesel ones (55.1% of 13,954 vs 50.9% of 316). In 2025, 55.0% of 14,270 first MOTs on the 2004 MINI Hatch passed first time (PRS — items fixed at the station the same day — counted as a fail). The official-style rate including PRS is 61.7%. Among 6,418 failed first-attempt MOT tests (test year 2025), Fuel cap/sealing device appears more often than on similar car…
Ranked by how often they were actually recorded, the items that failed 2004 MINI Hatchs most often at the first attempt were Headlamp aim (13.2%), Drive shafts — Joints (front) (10.7%) and Position lamp (front) (10.0%) — each as a share of the year's failed first attempts. That is what goes wrong on the car. It is a different question from which patterns are unusual for the class, which the common-faults table answe…
Among failed first-attempt tests we highlight patterns that appear more often than on similar cars. Top example: Fuel cap/sealing device (4.4% of those tests; 280 observed failures; about 8.4× more often than similar cars). These are statistical signals, not a diagnosis of any individual car.
Fuel cap/sealing device shows up more often than on similar cars (4.4% of those tests; 280 observed failures; about 8.4× more often than similar cars). That does not prove a design fault — age, mileage, and how the car was used still matter. Treat it as a pre-purchase check point, not a manufacturer service bulletin.
Common MOT problem areas for the 2004 MINI Hatch include Fuel cap/sealing device, Wheel bearings (front), Rigid brake pipes (front). These patterns show up more often than on similar cars after we filter out sparse noise — not a full list of every possible fault on an individual car.
Advisories flag issues noted at the test and are not a fail rate. We show advisory patterns that appear more often than on similar cars among failed first-attempt tests, separate from common failure rows. Use them as early-warning checks, not as a pass/fail score.
This page highlights MOT failure patterns for the 2004 MINI Hatch (registration year) using UK DVSA open data for the selected test year. Patterns are compared with cars of a similar age and mileage. It is a buyer checklist from MOT defect statistics — not a full service history or manufacturer service-bulletin list.
No. MOT tests do not cover engine internals, gearboxes, or many electronic modules. Patterns here come from MOT defect statistics only and should not be read as engine or gearbox reliability scores.

About this data

How this page is built and what it can (and can't) say.

These figures come from UK MOT open data for this model year. We surface common failure patterns against similar cars — not a full reliability score, and not a pass/fail verdict on any individual vehicle.

2024 2025

What we include

UK Class 4 cars only. Normal MOT tests (not retests); first test per vehicle per calendar year; results pass, PRS, or fail.

Same-day repairs

PRS means the car failed items that were fixed at the test station and then passed the same day. We count PRS as a first-attempt fail in headline rates so same-day repairs do not hide problems.

How we compare

We compare this model year with other Class 4 cars of similar age and mileage in the same test year. This model family is left out of the peer group so the car is not measured against itself.

What this does not cover

  • MOTs do not cover engine internals, gearboxes, or many electronics — this is not a full reliability score.
  • Common faults come from MOT defect stats, not manufacturer TSBs or recalls.
  • Age and mileage matching reduces — but does not remove — differences in how cars were used and maintained.
  • We never invent pass rates, star scores, or ranks when those data marts are missing.

Contains public sector information licensed under the Open Government Licence v3.0.

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