AUDI A6 (2020)
Running costs, common problems, and reliability data based on 3,470 real MOT tests in 2024.
MOT Pass Rate
94%
Total Tests (2024)
3,470
Avg Mileage
42,761 mi
Est. Annual Cost
£2,037
Is the 2020 AUDI A6 reliable?
Excellent reliability. Very few MOT failures. That's 12 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.
At 4 years old, 94% of AUDI A6s from 2020 passed their MOT first time in 2024. That's based on 3,470 tests across the UK. The average mileage at this age is 42,761 miles.
How does the 2020 AUDI A6 compare?
Mileage Analysis
The average 2020 AUDI A6 has 42,761 miles on the clock, which is above the expected 29,600 miles for a 4-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
How much does a 2020 AUDI A6 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
AUDI A6 by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 93% | 2,105 | 36,146 mi |
| 2020 | 94% | 3,470 | 42,761 mi |
| 2019 | 92% | 16,657 | 54,594 mi |
| 2018 | 92% | 16,546 | 62,634 mi |
| 2017 | 91% | 19,296 | 75,408 mi |
| 2016 | 89% | 26,437 | 85,249 mi |
| 2015 | 89% | 22,966 | 96,950 mi |
| 2014 | 88% | 21,808 | 106,355 mi |
| 2013 | 87% | 20,882 | 115,551 mi |
| 2012 | 86% | 16,143 | 125,550 mi |
| 2011 | 82% | 13,126 | 135,985 mi |
| 2010 | 81% | 12,471 | 143,668 mi |
| 2009 | 81% | 8,341 | 150,654 mi |
| 2008 | 80% | 11,124 | 156,627 mi |
| 2007 | 79% | 10,782 | 162,839 mi |
| 2006 | 78% | 6,542 | 165,663 mi |
| 2005 | 78% | 3,534 | 163,283 mi |
| 2004 | 75% | 2,156 | 155,383 mi |
| 2003 | 74% | 1,408 | 153,657 mi |
| 2002 | 73% | 771 | 164,916 mi |
| 2001 | 78% | 356 | 157,216 mi |
| 2000 | 75% | 389 | 150,802 mi |
| 1999 | 73% | 410 | 157,368 mi |
| 1998 | 76% | 222 | 151,701 mi |
| 1997 | 71% | 215 | 176,094 mi |
| 1996 | 78% | 316 | 189,126 mi |
| 1995 | 76% | 136 | 162,842 mi |
| 1994 | 81% | 53 | 140,857 mi |
Checking a specific AUDI A6?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 AUDI A6
The 2020 AUDI A6 is a premium performance with a 3996cc petrol engine. 3,470 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model beats that benchmark.
With an average of 42,761 miles at 4 years old, AUDI A6 owners cover more miles than the average driver.
2020 AUDI A6 Fuel Costs
The 3996cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 AUDI A6?
Total estimated annual running cost is £2,037 (£170/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
AUDI A6 Reliability Trend
Newer AUDI A6s show better MOT pass rates than older ones, with an average improvement of 11 percentage points.
Buying a Used 2020 AUDI A6
At 4 years old, the AUDI A6 offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Alternatives to the 2020 AUDI A6
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- MERCEDES C (2019) 91% pass rate (-3%) from 52,838 tests
- PORSCHE CAYENNE (2019) 95% pass rate (+1%) from 9,063 tests
- PORSCHE 911 (2018) 96% pass rate (+2%) from 7,623 tests
- BENTLEY CONTINENTAL GT (2019) 97% pass rate (+3%) from 3,204 tests