Audi A3 S Line 30 Tdi
From 660 MOT tests. Above average for its class.
Common MOT failure categories
Pass rate by registration year
What goes wrong?
The most common MOT failure reasons are a tyre seriously damaged, wiper blade missing or obviously not clearing the windscreen and engine mil illuminated indicating a malfunction. The top issue, a tyre seriously damaged, caused 23 failures in 2024. Checking tread depth (1.6mm legal minimum, 3mm recommended) before your test can save an unnecessary fail. You can check prices at Black Circles if you need replacements. If you need repairs before retesting, sites like BookMyGarage let you compare local prices.
| a tyre seriously damaged | 23 |
| wiper blade missing or obviously not clearing the windscreen | 9 |
| engine mil illuminated indicating a malfunction | 7 |
| a brake lining or pad worn below 1.5mm | 7 |
| a shock absorber damaged to the extent that it does not function or showing signs of severe leakage | 6 |
| a tyre cords visible or damaged | 5 |
| a wheel with a loose or missing wheel nut, bolt or stud | 4 |
| tyre tread depth not in accordance with the requirements | 3 |
| the aim of a headlamp is not within limits laid down in the requirements | 3 |
| a spring or spring component fractured or seriously weakened | 2 |
How serious are these failures?
Not all MOT failures are equal. 21.7% of A3 S Line 30 Tdi failures could actually strand you: fractured springs, engine faults, exhaust problems. Another 50.7% are safety issues where the car still drives but shouldn't, such as worn brakes, corroded brake pipes, and steering wear. When it does fail, the average repair bill is around £102.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2021 | 87.3% | a tyre seriously damaged, wiper blade missing or obviously not clearing the windscreen |
| 2020 | 91% | a tyre seriously damaged, a tyre cords visible or damaged |
Typical mileage
Half of all A3 S Line 30 Tdis tested had between 25,534 and 45,582 miles on the clock. Relatively low mileage overall. Many are still fairly young.
At 32,167 median miles, the A3 S Line 30 Tdi has 0.036 failures per 10,000 miles driven.
Other Audi models
Common questions
What is the Audi A3 S Line 30 Tdi MOT pass rate?
The Audi A3 S Line 30 Tdi has a 88.3% MOT pass rate based on 660 real MOT tests. This is above the national average.
What are common MOT failures on a Audi A3 S Line 30 Tdi?
The most common MOT failure on the Audi A3 S Line 30 Tdi is a tyre seriously damaged, which caused 23 failures. Other common issues include wiper blade missing or obviously not clearing the windscreen.
What is the typical mileage of a Audi A3 S Line 30 Tdi at MOT?
The median mileage at MOT for a Audi A3 S Line 30 Tdi is 32,167 miles. The middle 50% of vehicles tested have between 25,534 and 45,582 miles.
Buying a used A3 S Line 30 Tdi?
Start with the free tools. Look up the specific vehicle's MOT history on GOV.UK The mileage at each test will show if it's been wound back, and the advisory history tells you what's wearing. Cross-reference that against the typical failures above to see if anything looks unusual for this model.
The free data won't tell you about outstanding finance, theft markers, or write-off history. For that, you need a vehicle history check This is especially important on a private sale where you have fewer legal protections.
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MOT data from DVSA anonymised test results, 2024 test year. Fleet data from DfT vehicle licensing statistics. Crown copyright, OGL v3.0. MOT pass rates are statistical summaries of test outcomes, not assessments of individual vehicle safety or condition. Always inspect a vehicle and check its full MOT history before purchasing. See terms of use.