Audi A5 Sport TDI Quattro (2008)
2008 Audi A5 Sport TDI Quattro
CarHunch analysed 111 real MOT records for the 2008 Audi A5 Sport TDI Quattro. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2008 A5 TDI Quattro passes its MOT first time only 68% of the time, well below the UK average of 80%, which signals underlying reliability concerns for this generation. The good news is that dangerous defects are not a feature of this model—none of the 111 vehicles analysed had ever recorded one—but the average of 1.18 failures per test suggests regular maintenance issues that buyers need to budget for.
At nearly 130,000 miles on average, these cars are showing their age, and the lack of any recorded advisories is unusual rather than reassuring; it typically means garages are finding defects serious enough to fail the car rather than flag minor concerns. If you're considering one, factor in that roughly one in three will need work before passing its next MOT, and budget for a pre-purchase inspection by a diesel specialist to catch expensive problems like fuel injection or turbo wear before you commit.
What to check before buying a 2008 Audi A5 Sport TDI Quattro
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 A5 Sport TDI Quattro
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Mileage Distribution
Most 2008 Audi A5 Sport TDI Quattro 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 2008 Audi A5 Sport TDI Quattro vehicles fall between 107,031 and 148,681 miles.
2008 Audi A5 Sport TDI Quattro — Still on the Road
43 vehicles still getting MOTs in 2025 — 52% 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 A5 Sport TDI Quattro?
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