Proton Impian (2004)

372 real MOT outcomes analysed • 72.1% first-time pass rate

2004 Proton Impian

CarHunch analysed 372 real MOT records for the 2004 Proton Impian. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 7.9% below UK average
72.1%
pass MOT first time
UK average: ~80%
53,497
typical mileage
39,749–65,807 middle half
25.3%
ever had a dangerous defect
recorded at any MOT
3.76
avg MOT failures per car
over 12.7 tests on record

What to check before buying a 2004 Proton Impian

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • ⚠️ 25.3% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Proton Impian

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (92%) 344 71.6% 3.92
LPG (6%) 24 78.6% 1.88
Diesel (1%) 3 73.9% 1.67
CNG (0%) 1 100% 0

Mileage Distribution

Most 2004 Proton Impian vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

39,749
low mileage
53,497
typical
65,807
high mileage

Half of all 2004 Proton Impian vehicles fall between 39,749 and 65,807 miles.

2004 Proton Impian — Still on the Road

Numbers are declining — 13 vehicles still getting MOTs in 2024 (6% of peak).

236 13 2014 2024

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2024.

MOT History Averages

12.7
Avg MOT tests per vehicle
3.76
Avg failures per vehicle
11.9
Avg advisories per vehicle

Most Common MOT Issues — 2004 Proton Impian

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 57.9%
    Nearside Front Tyre worn close to the legal limit
  • 54.5%
    Offside Front Tyre worn close to the legal limit
  • 47.6%
    Parking brake: efficiency below requirements
  • 43.8%
    Front Brake pad(s) wearing thin
  • 39.7%
    Nearside Steering rack gaiter split
  • 38.6%
    Offside Steering rack gaiter split
  • 34.8%
    Offside Rear Tyre worn close to the legal limit
  • 30.1%
    Nearside Rear Tyre worn close to the legal limit

Data covers a 3-year window centred on 2004. Counts include advisories and failures.

Found a specific Proton Impian?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Proton Impian:

2001 2002 2003 2005 2006 2007