Toyota Yaris T3 D 4d (2004)
2004 Toyota Yaris T3 D 4d
CarHunch analysed 120 real MOT records for the 2004 Toyota Yaris T3 D 4d. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2004 Yaris D-4D has a first-time MOT pass rate of just 57.6%, well below the UK average of 80%, which suggests these diesel examples are hitting their reliability ceiling at this age. The good news is that no vehicles in this sample have ever recorded a dangerous defect, so safety-critical failures aren't the issue here—it's the accumulated wear on an ageing engine and ancillaries.
At a median mileage of 130,279 miles, these cars have genuinely high usage for their age, which explains why the average vehicle carries 0.88 failures per test. If you're considering one, budget for regular remedial work and expect to fail the MOT more often than not; prioritise a pre-purchase inspection by a diesel specialist and check the full service history carefully.
What to check before buying a 2004 Toyota Yaris T3 D 4d
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.
- 📄 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 Toyota Yaris T3 D 4d
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (99%) | 119 | 57.5% | 0.87 |
| Gas Bi-Fuel (1%) | 1 | 75% | 2 |
Mileage Distribution
Most 2004 Toyota Yaris T3 D 4d 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 2004 Toyota Yaris T3 D 4d vehicles fall between 104,593 and 168,617 miles.
2004 Toyota Yaris T3 D 4d — Still on the Road
Numbers are declining — 21 vehicles still getting MOTs in 2025 (25% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
MOT History Averages
Found a specific Toyota Yaris T3 D 4d?
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