Audi A4 SE TDI 6sp (2009)
2009 Audi A4 SE TDI 6sp
CarHunch analysed 928 real MOT records for the 2009 Audi A4 SE TDI 6sp. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2009 Audi A4 TDI is a serious reliability concern—just 39.9% pass first time against the UK average of 80%, meaning four in five examples fail their MOT on the first attempt. The good news is that dangerous defects are essentially absent from this cohort, so failures are typically fixable rather than safety-critical issues.
At 144,877 miles on average, these cars are well-worn, which partly explains the high failure rate, but the 0.68 average failures per vehicle suggests systemic mechanical wear rather than isolated problems. If you're considering one, budget for repairs before purchase and have a pre-buy inspection focus on suspension, braking components, and diesel engine condition.
What to check before buying a 2009 Audi A4 SE TDI 6sp
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 Audi A4 SE TDI 6sp
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 |
|---|---|---|---|
| Diesel (99%) | 920 | 39.5% | 0.67 |
| Gas Bi-Fuel (1%) | 8 | 77.9% | 1.63 |
Mileage Distribution
Most 2009 Audi A4 SE TDI 6sp 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 2009 Audi A4 SE TDI 6sp vehicles fall between 121,743 and 164,877 miles.
2009 Audi A4 SE TDI 6sp — Still on the Road
211 vehicles still getting MOTs in 2025 — 55% of the peak remain.
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 Audi A4 SE TDI 6sp?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.