AUDI RS6 (2015)
Running costs, common problems, and reliability data based on 49 real MOT tests in 2024.
MOT Pass Rate
96%
Total Tests (2024)
49
Avg Mileage
58,586 mi
Est. Annual Cost
£2,097
Is the 2015 AUDI RS6 reliable?
Excellent reliability. Very few MOT failures. That's 14 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.
At 9 years old, 96% of AUDI RS6s from 2015 passed their MOT first time in 2024. That's based on 49 tests across the UK. The average mileage at this age is 58,586 miles.
How does the 2015 AUDI RS6 compare?
Mileage Analysis
The average 2015 AUDI RS6 has 58,586 miles on the clock, which is in line with the expected 66,600 miles for a 9-year-old car, suggesting normal everyday use.
Best year to buy a AUDI RS6?
The most reliable year is the 2014 model with a 92% MOT pass rate, while the 2003 model has the lowest at 86%. The 2015 sits between the two at 96%.
How much does a 2015 AUDI RS6 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 RS6 by Year
Checking a specific AUDI RS6?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2015 AUDI RS6
The 2015 AUDI RS6 is a premium performance with a 3993cc petrol engine. 49 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 11% of all 2015 cars for reliability.
With an average of 58,586 miles at 9 years old, AUDI RS6 owners drive about as much as the UK average.
2015 AUDI RS6 Fuel Costs
The 3993cc 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 2015 AUDI RS6?
Total estimated annual running cost is £2,097 (£175/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 96% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
AUDI RS6 Reliability Trend
Newer AUDI RS6s show better MOT pass rates than older ones, with an average improvement of 4 percentage points.
Buying a Used 2015 AUDI RS6
At 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2014 model has the highest pass rate at 92%. Note: with only 49 tests in our data, these figures should be treated as indicative rather than definitive.
Alternatives to the 2015 AUDI RS6
The AUDI RS6 is actually the most reliable option among similar petrol premium performances from this era. Here are comparable petrol cars with similar engines:
- MERCEDES C (2016) 88% pass rate (-8%) from 80,181 tests
- AUDI A6 (2016) 89% pass rate (-7%) from 26,437 tests
- PORSCHE MACAN (2015) 91% pass rate (-5%) from 10,904 tests
- VOLKSWAGEN TOUAREG (2015) 85% pass rate (-11%) from 9,905 tests