Audi A3 Sport TDI S A (2017)
2017 Audi A3 Sport TDI S A
CarHunch analysed 152 real MOT records for the 2017 Audi A3 Sport TDI S A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2017 Audi A3 Sport TDI S-A falls short of the UK average with a 69.4% first-time pass rate versus 80%, suggesting these vehicles need more attention to stay road-legal. The good news is that dangerous defects are completely absent from this cohort, so you're not looking at safety-critical failures here.
With a median mileage of 69,000 miles for a seven-year-old car, these are moderate runners, and the negligible failure rate (0.12 per vehicle) means when problems do arise, they're typically minor. Before buying one, have a pre-purchase inspection focus on the diesel engine and emissions systems, which are the likely weak points pushing that pass rate down.
What to check before buying a 2017 Audi A3 Sport TDI S A
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 A3 Sport TDI S A
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2017 Audi A3 Sport TDI S A 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 2017 Audi A3 Sport TDI S A vehicles fall between 60,101 and 83,076 miles.
2017 Audi A3 Sport TDI S A — Still on the Road
Strong survival — 71 vehicles still getting MOTs in 2025, 91% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.
MOT History Averages
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