Audi A3 S Line 35 TDI Reliability, MOT Pass Rate & Common Faults
Free Audi A3 S Line 35 TDI car check
Is the Audi A3 S Line 35 TDI reliable? We analysed 1,110 real MOT tests across 296 vehicles to find out.
Got a specific Audi A3 S Line 35 TDI? Enter the reg for a free check:
The Audi A3 S Line 35 TDI is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Audi A3 S Line 35 TDI.
Audi A3 S Line 35 TDI Number Plates
Number plates registered to a Audi A3 S Line 35 TDI. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Audi A3 S Line 35 TDI MOT Pass Rate by Year
How likely is a Audi A3 S Line 35 TDI to pass its MOT? Here's the pass rate for each registration year, newest first.
Audi A3 S Line 35 TDI Common Faults & Problems
These are the most common serious faults found on Audi A3 S Line 35 TDI models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Audi A3 S Line 35 TDI Mileage — What's Normal?
How many miles does a typical Audi A3 S Line 35 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 35 TDI MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Audi A3 S Line 35 TDI year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2022 | 105 | 90.5% | 32,582 | 54,052 | 68,582 |
| 2021 | 62 | 91.9% | 26,910 | 46,507 | 71,104 |
| 2020 | 316 | 88.3% | 30,904 | 42,878 | 60,598 |
| 2019 | 587 | 88.8% | 26,594 | 37,534 | 53,557 |
How Long Does a Audi A3 S Line 35 TDI Last?
Based on 296 Audi A3 S Line 35 TDI vehicles on UK roads.
Audi A3 S Line 35 TDI Mileage Distribution
Total mileage recorded across all Audi A3 S Line 35 TDI MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Audi A3 S Line 35 TDI
Based on MOT pass rates across all registration years with sufficient test data.
91.9% MOT pass rate from 62 tests
88.3% MOT pass rate from 316 tests
The best year to buy a used Audi A3 S Line 35 TDI is 2021, which has the highest MOT pass rate at 91.9% across 62 tests. The 2020 model year has the lowest pass rate at 88.3% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Audi A3 S Line 35 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 35 TDI THIS CAR | 89.2% | 1,110 | 41,363 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 |
| Honda TL125 | 86.8% | 514 | 7,092 mi | 51 yrs |
Compared to the Audi A3 (78.0% pass rate) and the Audi A4 (76.1% pass rate), the Audi A3 S Line 35 TDI outperforms both on MOT reliability.
Found a Audi A3 S Line 35 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 35 TDIShould you buy a used Audi A3 S Line 35 TDI?
The Audi A3 S Line 35 TDI has an overall MOT pass rate of 89.2% across 1,110 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Audi A3 S Line 35 TDI with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Audi A3 S Line 35 TDI owner drives around 8,412 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.