Proton Gen 2 (2005)
2005 Proton Gen 2
CarHunch analysed 1,008 real MOT records for the 2005 Proton Gen 2. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2005 Proton Gen-2 falls short of the UK average with a 73.1% first-time pass rate, and nearly 30% of these cars have recorded a dangerous defect at some point—a significant reliability warning for a buyer. Petrol versions show no meaningful advantage at 72.9%, so fuel type isn't a differentiator here.
These cars average around 50,000 miles for their age, which is actually reasonable, yet they still rack up 3.57 failures and 13.4 advisories per test. Before buying one, have a pre-purchase inspection focus on why nearly a third have flagged serious safety issues—it's the kind of pattern that suggests structural or systemic problems rather than isolated wear items.
What to check before buying a 2005 Proton Gen 2
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.
- ⚠️ 29.9% 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 Gen 2
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 (99%) | 995 | 72.9% | 3.59 |
| LPG (1%) | 10 | 86.3% | 1.8 |
| Diesel (0%) | 3 | 86.1% | 1 |
Mileage Distribution
Most 2005 Proton Gen 2 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.
Half of all 2005 Proton Gen 2 vehicles fall between 35,072 and 61,079 miles.
2005 Proton Gen 2 — Still on the Road
Numbers are declining — 48 vehicles still getting MOTs in 2023 (6% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2023.
MOT History Averages
Most Common MOT Issues — 2005 Proton Gen 2
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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65.9%
Nearside Front Tyre worn close to the legal limit
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61.8%
Offside Front Tyre worn close to the legal limit
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49.9%
Parking brake: efficiency below requirements
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42.1%
Front Brake pad(s) wearing thin
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36.9%
Offside Rear Tyre worn close to the legal limit
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34.7%
Nearside Rear Tyre worn close to the legal limit
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31.8%
Rear Brake pad(s) wearing thin
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30.9%
Parking brake lever has little reserve travel
Data covers a 3-year window centred on 2005. Counts include advisories and failures.
Found a specific Proton Gen 2?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.