2020 Audi Q3 S Line Ed 1 40 Quat Sa — MOT failures & pass rate
Across 1,209 MOT tests analysed for the 2020 Audi Q3 S Line Ed 1 40 Quat Sa, the most common recorded failure areas were tyres, brakes and visibility. Its pass rate of 93.2% was above the average for cars of a similar age (90.5%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.1% | 61 |
| 2 | Brakes | 1.2% | 15 |
| 3 | Visibility | 1.2% | 14 |
| 4 | Lighting & signalling | 0.7% | 9 |
| 5 | Emissions & environmental | 0.3% | 3 |
| 6 | Other defects | 0.2% | 2 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Brake pads | 19 |
| 2 | Washers | 13 |
| 3 | Headlamp aim | 7 |
| 4 | Tread depth | 7 |
| 5 | Registration plates | 3 |
| 6 | Malfunction indicator lamp | 3 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 18.2% | 220 |
| 2 | Brakes | 17.0% | 206 |
| 3 | Other defects | 7.9% | 96 |
| 4 | Suspension | 4.6% | 56 |
| 5 | Visibility | 2.1% | 25 |
| 6 | Lighting & signalling | 0.4% | 5 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 640 | 5.0% |
| 30-60k | 519 | 8.9% |
| 60-90k | 44 | 9.1% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 930 | 6.3% |
| Diesel | 279 | 8.2% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2023 | 400 | 5.0% |
| 2024 | 394 | 7.1% |
| 2025 | 405 | 8.4% |
What to check before buying a 2020 Q3 S Line Ed 1 40 Quat Sa
Before buying a 2020 Audi Q3 S Line Ed 1 40 Quat Sa, focus on the areas it most often fails on. Tyres accounted for 5.1% of tests for this year.
- Tyres (5.1% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Brakes (1.2% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Visibility (1.2% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2020 Audi Q3 S Line Ed 1 40 Quat Sas pass their MOT?
93.2% of the 1,209 2020 Audi Q3 S Line Ed 1 40 Quat Sa MOT tests in this dataset passed — a 6.8% fail rate.
What is the most common MOT failure on a 2020 Audi Q3 S Line Ed 1 40 Quat Sa?
Tyres, recorded in 5.1% of tests, followed by brakes (1.2%).
Does the 2020 Q3 S Line Ed 1 40 Quat Sa get worse with mileage?
Its MOT fail rate rises from 5.0% in the 0-30k band to 9.1% in the 60-90k band.
Methodology & source. Based on 1,209 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.