Reliability report
Audi S4 reliability and common faults
Based on 23,238 roadworthiness tests, led by the UK MOT. Each country is compared only with its own average for cars of the same age.
🇬🇧 United Kingdom · MOT
14.9%
fail rate · average 23.3%
much better than average
1,222 MOT tests (DVSA)
🇳🇱 Netherlands · APK
26.0%
with defects · average 40.3%
much better than average
670 APK inspections (RDW)
🇱🇹 Lithuania · inspection
44.9%
first-time pass · average 44.1%
about average
21,346 inspections
Testing regimes differ from country to country – don’t compare the figures between countries; compare each one only with its own average. MOT data: contains public sector information licensed under the Open Government Licence v3.0.
Weak spots
What goes wrong on the Audi S4
How often each area fails compared with the average car of the same age (vertical line = average, 100%). Red – more often than average.
Wheels
Plates and identification
Suspension
Tyres
Exhaust and emissions
Brakes
Seat belts and airbags
Visibility
Steering
Lights and electrics
Body and structure
Results by vehicle age
| Age | 🇬🇧 MOT fail rate | 🇳🇱 APK defects |
|---|---|---|
| 3–5 years | 9.6% avg 9.9% | — |
| 6–8 years | — | 24.2% avg 36.7% |
| 9–11 years | — | 28.0% avg 44.4% |
| 12–15 years | 18.1% avg 30.3% | — |
| 16–20 years | 18.9% avg 34.6% | — |
🇱🇹 First-time pass rate in Lithuania – by year of manufacture
| Year | S4 | Average for year | Inspections |
|---|---|---|---|
| 2014 | 55.3% | 68.0% | 38 |
| 2013 | 60.6% | 65.9% | 71 |
| 2012 | 46.9% | 63.7% | 49 |
| 2011 | 51.1% | 61.2% | 47 |
| 2010 | 50.0% | 57.3% | 34 |
| 2007 | 46.5% | 50.6% | 43 |
| 2006 | 49.2% | 48.7% | 591 |
| 2005 | 46.7% | 46.6% | 5,493 |
| 2004 | 44.1% | 44.5% | 3,369 |
| 2003 | 44.7% | 42.9% | 3,993 |
| 2002 | 42.8% | 42.0% | 4,581 |
| 2001 | 44.1% | 40.9% | 2,527 |
| 2000 | 43.8% | 39.6% | 235 |
| 1999 | 52.3% | 38.6% | 107 |
| 1998 | 30.4% | 37.8% | 46 |
Audi S4 – FAQs
How reliable is the Audi S4?+
In the UK the Audi S4 fails 14.9% of MOT tests, against an average of 23.3% for cars of the same age – much better than average. In the Netherlands, inspectors found defects at 26.0% of APK inspections (average there 40.3%) – much better than average. In Lithuania 44.9% pass their roadworthiness test first time (average for those years there 44.1%) – about average.
More Audi models
Sources: anonymised MOT test results (DVSA) – contains public sector information licensed under the Open Government Licence v3.0; APK inspection defects (RDW, open data); Lithuanian roadworthiness test results (data.gov.lt). Initial tests only; retests are not counted. Photo: Mr.choppers, CC BY-SA 3.0, Wikimedia Commons (licence).