AUDI A6 S LINE 45 TFSI MHEV QUAT SA (2021)
Running costs, common problems, and reliability data based on 166 real MOT tests in 2024.
MOT Pass Rate
89%
Total Tests (2024)
166
Avg Mileage
26,445 mi
Est. Annual Cost
£1,922
Is the 2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA reliable?
Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.
At 3 years old, 89% of AUDI A6 S LINE 45 TFSI MHEV QUAT SAs from 2021 passed their MOT first time in 2024. That's based on 166 tests across the UK. The average mileage at this age is 26,445 miles.
How does the 2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA compare?
Mileage Analysis
The average 2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA has 26,445 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.
Best year to buy a AUDI A6 S LINE 45 TFSI MHEV QUAT SA?
The most reliable year is the 2020 model with a 92% MOT pass rate, while the 2021 model has the lowest at 89%. Consider a different year if reliability is a priority.
How much does a 2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA 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 S LINE 45 TFSI MHEV QUAT SA by Year
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About the 2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA
The 2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA is a premium with a 1984cc petrol engine. 166 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 81% of 2021 cars for MOT pass rates.
With an average of 26,445 miles at 3 years old, AUDI A6 S LINE 45 TFSI MHEV QUAT SA owners drive about as much as the UK average.
2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA Fuel Costs
The 1984cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 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 A6 S LINE 45 TFSI MHEV QUAT SA?
Total estimated annual running cost is £1,922 (£160/month), broken down as £1327 fuel, £190 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 A6 S LINE 45 TFSI MHEV QUAT SA
At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet.
Alternatives to the 2021 AUDI A6 S LINE 45 TFSI MHEV QUAT SA
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- VOLKSWAGEN GOLF (2019) 92% pass rate (+3%) from 89,653 tests
- NISSAN QASHQAI (2020) 93% pass rate (+4%) from 52,321 tests
- MINI COOPER (2019) 92% pass rate (+3%) from 52,140 tests
- HYUNDAI TUCSON (2019) 90% pass rate (+1%) from 42,920 tests