Audi A4: reliability by registration year
1999-2022 · 24 registration years · 232,307 first tests
Registration years
First-attempt MOT results for every A4 registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table. Years without their own report are listed here with the same figures.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2022 | 6,332 | 87.6% | 89.4% | Tyre condition (front) 30.9% |
| 2021 | 6,782 | 87.6% | 89.1% | Tyre condition (front) 27.9% |
| 2020 | 8,075 | 87.4% | 89.1% | Tyre condition (front) 22.6% |
| 2019 | 12,510 | 83.5% | 85.4% | Coil spring (rear) 20.6% |
| 2018 | 12,882 | 79.5% | 81.5% | Coil spring (rear) 38.7% |
| 2017 | 20,081 | 78.7% | 81.2% | Coil spring (rear) 35.7% |
| 2016 | 20,832 | 78.3% | 81.1% | Coil spring (rear) 33.6% |
| about 2 in every 100 better than the years either side. What most often failed a 2016 A4: Coil spring (rear) (33.6%) · Tyre tread depth (front) (10.2%) · Tyre condition (front) (8.3%) | ||||
| 2015 | 15,482 | 73.6% | 77.8% | Drive shaft joints and boots (front) 12.1% |
| about 2 in every 100 worse than the years either side. What most often failed a 2015 A4: Drive shaft joints and boots (front) (12.1%) · Tyre condition (front) (10.4%) · Tyre tread depth (front) (9.7%) | ||||
| 2014 | 15,932 | 72.6% | 76.9% | Drive shaft joints and boots (front) 11.5% |
| 2013 | 15,094 | 72.3% | 77.2% | Drive shaft joints and boots (front) 11.3% |
| 2012 | 12,475 | 70.7% | 75.6% | Suspension arm pins and bushes (front) 10.6% |
| 2011 | 12,652 | 68.4% | 74.1% | Suspension arm pins and bushes (front) 14.0% |
| 2010 | 11,589 | 65.7% | 71.5% | Drive shaft joints and boots (front) 17.9% |
| 2009 | 10,978 | 64.5% | 70.4% | Drive shaft joints and boots (front) 19.2% |
| 2008 | 12,492 | 62.5% | 69.5% | Drive shaft joints and boots (front) 16.3% |
| 2007 | 11,899 | 63.7% | 70.8% | Drive shaft joints and boots (front) 11.8% |
| 2006 | 9,953 | 62.5% | 69.3% | Drive shaft joints and boots (front) 12.5% |
| 2005 | 5,426 | 61.6% | 69.1% | Headlight aim 11.1% |
| 2004 | 4,784 | 61.6% | 68.6% | Suspension arm pins and bushes (front) 12.6% |
| 2003 | 2,678 | 60.6% | 68.0% | Suspension arm pins and bushes (front) 13.1% |
| 2002 | 1,406 | 61.0% | 67.6% | Suspension arm ball joint (front) 11.0% |
| 2001 | 659 | 63.3% | 69.2% | |
| 2000 | 723 | 61.3% | 65.4% | Drive shaft joints and boots (front) 17.9% |
| 1999 | 591 | 61.6% | 67.0% | |