AUDI RS 6 CRBN BLK TFSI MHEV QUAT A (2021)
Running costs, reliability data, and common problems from 507 real MOT tests.
Annual Cost
£2,192
£183/month
MOT Pass Rate
89%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 35-50
3996cc Petrol
Solid Option
89% pass rate, £2192/year to run. 7 points above average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 5 years old, 89% of AUDI RS 6 CRBN BLK TFSI MHEV QUAT As from 2021 passed their MOT first time in 2026. That's based on 507 tests across the UK. The average mileage at this age is 24,668 miles.
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How Does It Compare?
Mileage Analysis
24,668
Average miles
37,000
Expected for age
The average 2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A has 24,668 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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Best Year to Buy?
The most reliable year is the 2020 model with a 97% MOT pass rate, while the 2021 model has the lowest at 89%. Consider a different year if reliability is a priority.
AUDI RS 6 CRBN BLK TFSI MHEV QUAT A by Year
Similar Cars to Consider
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About the 2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A
The 2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A is a premium performance with a 3996cc petrol engine. 507 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It sits in the bottom 80% of 2021 cars for MOT pass rates.
With an average of 24,668 miles at 5 years old, AUDI RS 6 CRBN BLK TFSI MHEV QUAT A owners tend to use this car less than the typical driver.
2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A 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 2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A?
Total estimated annual running cost is £2,192 (£183/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A
At 5 years old, the AUDI RS 6 CRBN BLK TFSI MHEV QUAT A offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Common Issues to Watch For
Based on the 2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A's fuel type, age, and engine size, these are the most likely problem areas to check.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2021 AUDI RS 6 CRBN BLK TFSI MHEV QUAT A stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| AUDI RS 6 CRBN BLK TFSI MHEV QUAT A(2021) | 89% | £1592 | £195 | Grp 35-50 | £2192 |
| MERCEDES C(2019) | 91% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| PORSCHE CAYENNE(2019) | 95% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| PORSCHE 911(2019) | 97% | £1592 | £190 | Grp 35-50 | £2037-£155 |
| AUDI A6(2020) | 94% | £1592 | £190 | Grp 35-50 | £2037-£155 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Audi Models
Explore other Audi cars or similar models in the same category.
AUDI A3
2015 · 1598cc Diesel
AUDI A1
2016 · 1395cc Petrol
AUDI A4
2017 · 1968cc Diesel
MERCEDES C
2019 · 3982cc Petrol
PORSCHE CAYENNE
2019 · 3996cc Petrol
PORSCHE 911
2019 · 3996cc Petrol
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