CarCostCheck

AUDI A6 SLN BLK ED 50TFSI E QUAT SA (2021)

Running costs, common problems, and reliability data based on 159 real MOT tests in 2024.

MOT Pass Rate

97%

Total Tests (2024)

159

Avg Mileage

36,699 mi

Est. Annual Cost

£1,772

Is the 2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA reliable?

Excellent reliability. Very few MOT failures. That's 15 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.

At 3 years old, 97% of AUDI A6 SLN BLK ED 50TFSI E QUAT SAs from 2021 passed their MOT first time in 2024. That's based on 159 tests across the UK. The average mileage at this age is 36,699 miles.

How does the 2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA compare?

Rank among all 2021 cars374th out of 3,373(top 11%)
Rank among all AUDI models99th out of 1,079(top 9%)
vs national average+15% (82% avg)
vs 2021 cars average+5% (92% avg)
vs AUDI average+7% (90% avg)

Mileage Analysis

The average 2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA has 36,699 miles on the clock, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.

How much does a 2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA cost to run?

Fuel (Hybrid, 1984cc)
£1,327
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,772
Per month£148/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

AUDI A6 SLN BLK ED 50TFSI E QUAT SA by Year

YearPass RateTestsAvg Mileage
202297%3029,152 mi
202197%15936,699 mi
202086%3658,441 mi

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About the 2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA

The 2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA is a premium with a 1984cc hybrid engine. 159 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 11% of all 2021 cars for reliability.

With an average of 36,699 miles at 3 years old, AUDI A6 SLN BLK ED 50TFSI E QUAT SA owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.

2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA Fuel Costs

The 1984cc hybrid 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 hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.

What does it cost to own a 2021 AUDI A6 SLN BLK ED 50TFSI E QUAT SA?

Total estimated annual running cost is £1,772 148/month), broken down as £1327 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 97% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 AUDI A6 SLN BLK ED 50TFSI E 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 SLN BLK ED 50TFSI E QUAT SA

The AUDI A6 SLN BLK ED 50TFSI E QUAT SA is actually the most reliable option among similar hybrid premiums from this era. Here are comparable hybrid cars with similar engines: