Audi A3 S Line TDI Reliability, MOT Pass Rate & Common Faults
Free Audi A3 S Line TDI car check
Is the Audi A3 S Line TDI reliable? We analysed 7,667 real MOT tests across 1,612 vehicles to find out.
Got a specific Audi A3 S Line TDI? Enter the reg for a free check:
The Audi A3 S Line TDI is above average for reliability based on real UK MOT data. Common problems include all position lamps not working, anti-roll bar rubber bush deteriorated resulting in excessive movement and coil spring broken. Here's everything you need to know before buying a used Audi A3 S Line TDI.
Audi A3 S Line TDI Number Plates
Number plates registered to a Audi A3 S Line TDI. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Audi A3 S Line TDI Problems — What Goes Wrong?
The most common reasons a Audi A3 S Line TDI fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Audi A3 S Line TDI Mileage — What's Normal?
How many miles does a typical Audi A3 S Line TDI owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Audi A3 S Line TDI Mileage Distribution
Total mileage recorded across all Audi A3 S Line TDI MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
How Does the Audi A3 S Line TDI Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Audi A3 S Line TDI THIS CAR | 89.5% | 7,667 | 87,120 mi | — yrs |
| Audi A3 | 78% | 7,415,025 | 78,776 mi | 29 yrs |
| Audi A4 | 76.1% | 7,096,957 | 96,834 mi | 31 yrs |
| Audi A6 | 78.4% | 2,724,792 | 98,890 mi | 31 yrs |
| Hyundai I20 Premium MHEV T-gdi Auto | 86.3% | 2,723 | 19,088 mi | — yrs |
Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi A3 S Line TDI outperforms both on MOT reliability.
Found a Audi A3 S Line TDI you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Audi A3 S Line TDIShould you buy a used Audi A3 S Line TDI?
The Audi A3 S Line TDI has an overall MOT pass rate of 89.5% across 7,667 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Audi A3 S Line TDI are all position lamps not working (2 recorded failures), anti-roll bar rubber bush deteriorated resulting in excessive movement (2), and coil spring broken (2). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Audi A3 S Line TDI owner drives around 9,012 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.