Audi A4 S Line 30 Tdi S-A
From 299 MOT tests. Above average for its class.
Common MOT failure categories
What goes wrong?
The most common MOT failure reasons are a tyre seriously damaged, a spring or spring component fractured or seriously weakened and windscreen washers not working or not providing sufficient fluid to clear the windscreen. The top issue, a tyre seriously damaged, caused 6 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 | 6 |
| a spring or spring component fractured or seriously weakened | 5 |
| windscreen washers not working or not providing sufficient fluid to clear the windscreen | 4 |
| brake lining or pad worn down to wear indicator | 2 |
| tyre tread depth not in accordance with the requirements | 2 |
| a brake lining or pad worn below 1.5mm | 2 |
| wiper blade defective | 2 |
| smoke opacity levels exceed the manufacturer's specified limit | 2 |
| engine mil illuminated indicating a malfunction | 1 |
| seat belt retractor not functioning as intended | 1 |
How serious are these failures?
Not all MOT failures are equal. 22.2% of A4 S Line 30 Tdi S-A failures could actually strand you: fractured springs, engine faults, exhaust problems. Another 29.6% 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 £100.
By registration year
| Year | Pass rate | Top failures |
|---|---|---|
| 2020 | 88.1% | a tyre seriously damaged, a spring or spring component fractured or seriously weakened |
Typical mileage
Half of all A4 S Line 30 Tdi S-As tested had between 34,308 and 62,682 miles on the clock.
At 45,266 median miles, the A4 S Line 30 Tdi S-A has 0.027 failures per 10,000 miles driven.
Other Audi models
Common questions
What is the Audi A4 S Line 30 Tdi S-A MOT pass rate?
The Audi A4 S Line 30 Tdi S-A has a 87.6% MOT pass rate based on 299 real MOT tests. This is above the national average.
What are common MOT failures on a Audi A4 S Line 30 Tdi S-A?
The most common MOT failure on the Audi A4 S Line 30 Tdi S-A is a tyre seriously damaged, which caused 6 failures. Other common issues include a spring or spring component fractured or seriously weakened.
What is the typical mileage of a Audi A4 S Line 30 Tdi S-A at MOT?
The median mileage at MOT for a Audi A4 S Line 30 Tdi S-A is 45,266 miles. The middle 50% of vehicles tested have between 34,308 and 62,682 miles.
Buying a used A4 S Line 30 Tdi S-A?
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.