Is the Audi A6 reliable?

The Audi A6 has an average MOT pass rate of 82% across 28 years, based on 238,662 tests in 2026. That's 0 points above the national average of 82%. The most reliable year is 2020 with a 94% pass rate.

Which year Audi A6 is best?

The 2020 Audi A6 has the highest MOT pass rate at 94%, while the 1997 model has the lowest at 71%. There's a 23 percentage point spread between the best and worst years.

Audi A6

Reliability, running costs, and MOT data across 28 years from 238,662 real MOT tests.

Avg Pass Rate

82%

Total Tests

238,662

Best Year

2020 (94%)

Years Covered

About the Audi A6

The Audi A6 has been tested 238,662 times in 2026 MOT data across 28 model years (1994 to 2021), with an average pass rate of 82%. That's close to the national average of 82%. Available as petrol and diesel.

Best and Worst Years

The 2020 model is the most reliable with a 94% pass rate from 3,470 tests. The 1997 model has the lowest at 71%. With a 23 point spread, choosing the right year makes a big difference to reliability.

Reliability Trend

Newer AUDI A6s show better MOT pass rates than older ones, with an average improvement of 11 percentage points.

Mileage Across Years

The oldest model in our data (1994) averages 140,857 miles, while the newest (2021) averages 36,146 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Compared to the Audi brand average of 90%, the A6 is 8 points lower, placing it among the less reliable Audi models.

Estimated Running Costs

Fuel (Petrol, 1984cc)

£1,327

Road Tax

£195

MOT Test

£55

Predicted Repairs

£200

Total per year£1,777

Per month£148/mo

Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.

Full 2021 details

How reliable is the Audi A6?

vs national average+0% (82% avg)

vs Audi brand average-8% (90% avg)

Best to worst year spread23 percentage points

Reliability trendImproving over years

Audi A6 by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

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