Audi S4 Avant
From 553 MOT tests. Above average for its class.
Common MOT failure categories
What goes wrong?
The most common MOT failure reasons are a suspension pin, bush or joint excessively worn, a tyre seriously damaged and a suspension joint dust cover missing or no longer prevents the ingress of dirt etc. The top issue, a suspension pin, bush or joint excessively worn, caused 20 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 suspension pin, bush or joint excessively worn | 20 |
| a tyre seriously damaged | 14 |
| a suspension joint dust cover missing or no longer prevents the ingress of dirt etc | 11 |
| a tyre cords visible or damaged | 11 |
| a transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc | 9 |
| a rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources | 7 |
| a transmission shaft constant velocity joint boot severely deteriorated | 6 |
| emissions levels exceed default limits | 6 |
| the aim of a headlamp is not within limits laid down in the requirements | 6 |
| a rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps | 6 |
How serious are these failures?
Not all MOT failures are equal. 46.9% of S4 Avant failures are safety items (worn brakes, tyre damage, steering play). The car still drives, but you shouldn't. Only 9.4% are the kind that would actually strand you. When it does fail, the average repair bill is around £106.
Typical mileage
Half of all S4 Avants tested had between 80,689 and 113,981 miles on the clock. A significant number are high-mileage vehicles.
At 92,656 median miles, the S4 Avant has 0.016 failures per 10,000 miles driven.
Other Audi models
Common questions
What is the Audi S4 Avant MOT pass rate?
The Audi S4 Avant has a 85.5% MOT pass rate based on 553 real MOT tests. This is above the national average.
What are common MOT failures on a Audi S4 Avant?
The most common MOT failure on the Audi S4 Avant is a suspension pin, bush or joint excessively worn, which caused 20 failures. Other common issues include a tyre seriously damaged.
What is the typical mileage of a Audi S4 Avant at MOT?
The median mileage at MOT for a Audi S4 Avant is 92,656 miles. The middle 50% of vehicles tested have between 80,689 and 113,981 miles.
Buying a used S4 Avant?
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.