AUDI S6 TDI QUATTRO AUTO (2020)
Running costs, common problems, and reliability data based on 192 real MOT tests in 2024.
MOT Pass Rate
88%
Total Tests (2024)
192
Avg Mileage
49,228 mi
Est. Annual Cost
£1,840
Is the 2020 AUDI S6 TDI QUATTRO AUTO reliable?
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.
At 4 years old, 88% of AUDI S6 TDI QUATTRO AUTOs from 2020 passed their MOT first time in 2024. That's based on 192 tests across the UK. The average mileage at this age is 49,228 miles.
How does the 2020 AUDI S6 TDI QUATTRO AUTO compare?
Mileage Analysis
The average 2020 AUDI S6 TDI QUATTRO AUTO has 49,228 miles on the clock, which is well above the expected 29,600 miles for a 4-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
Best year to buy a AUDI S6 TDI QUATTRO AUTO?
The most reliable year is the 2019 model with a 92% MOT pass rate, while the 2020 model has the lowest at 88%. Consider a different year if reliability is a priority.
How much does a 2020 AUDI S6 TDI QUATTRO AUTO 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.
Checking a specific AUDI S6 TDI QUATTRO AUTO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 AUDI S6 TDI QUATTRO AUTO
The 2020 AUDI S6 TDI QUATTRO AUTO is a premium performance with a 2967cc diesel engine. 192 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 83% of 2020 cars for MOT pass rates.
With an average of 49,228 miles at 4 years old, AUDI S6 TDI QUATTRO AUTO owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2020 AUDI S6 TDI QUATTRO AUTO Fuel Costs
The 2967cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 AUDI S6 TDI QUATTRO AUTO?
Total estimated annual running cost is £1,840 (£153/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2020 AUDI S6 TDI QUATTRO AUTO
At 4 years old, the AUDI S6 TDI QUATTRO AUTO 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 S6 TDI QUATTRO AUTO
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- MERCEDES E (2019) 90% pass rate (+2%) from 41,000 tests
- MERCEDES GLC (2018) 91% pass rate (+3%) from 40,494 tests
- FORD RANGER (2019) 87% pass rate (-1%) from 32,194 tests
- LAND ROVER RANGE ROVER VELAR (2018) 91% pass rate (+3%) from 29,640 tests