Audi A5 S Line TDI S A (2017)
2017 Audi A5 S Line TDI S A
CarHunch analysed 273 real MOT records for the 2017 Audi A5 S Line TDI S A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2017 Audi A5 S Line TDI is slightly less reliable than the UK average, with a first-time MOT pass rate of 74.4% versus the national 80%, though it's reassuring that no vehicles in this cohort have ever recorded a dangerous defect. The diesel engines show consistent performance across the board at 74.2% pass rate.
At 66,737 miles median, these cars have covered typical mileage for their age, and the low failure rate of just 0.19 per vehicle suggests that when they do need work, it's usually straightforward stuff. Before buying one, get a pre-purchase inspection focused on the suspension and cooling system—the items that show up in MOTs for this model—rather than assuming diesel reliability will carry you through without checks.
What to check before buying a 2017 Audi A5 S Line 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 A5 S Line TDI S A
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%) | 271 | 74.2% | 0.19 |
| Gas Bi-Fuel (1%) | 2 | 100% | 0 |
Mileage Distribution
Most 2017 Audi A5 S Line 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 A5 S Line TDI S A vehicles fall between 55,297 and 82,000 miles.
2017 Audi A5 S Line TDI S A — Still on the Road
118 vehicles still getting MOTs in 2025 — 78% of the peak remain.
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
Found a specific Audi A5 S Line TDI S A?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.
Other model years — Audi A5 S Line TDI S A: