AUDI Q8 SLN BLK ED 50 TDI MHEV QT A (2021)
Running costs, common problems, and reliability data based on 747 real MOT tests in 2024.
MOT Pass Rate
95%
Total Tests (2024)
747
Avg Mileage
35,299 mi
Est. Annual Cost
£1,690
Is the 2021 AUDI Q8 SLN BLK ED 50 TDI MHEV QT A reliable?
Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.
At 3 years old, 95% of AUDI Q8 SLN BLK ED 50 TDI MHEV QT As from 2021 passed their MOT first time in 2024. That's based on 747 tests across the UK. The average mileage at this age is 35,299 miles.
How does the 2021 AUDI Q8 SLN BLK ED 50 TDI MHEV QT A compare?
Mileage Analysis
The average 2021 AUDI Q8 SLN BLK ED 50 TDI MHEV QT A has 35,299 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 Q8 SLN BLK ED 50 TDI MHEV QT A 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 Q8 SLN BLK ED 50 TDI MHEV QT A by Year
Checking a specific AUDI Q8 SLN BLK ED 50 TDI MHEV QT A?
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About the 2021 AUDI Q8 SLN BLK ED 50 TDI MHEV QT A
The 2021 AUDI Q8 SLN BLK ED 50 TDI MHEV QT A is a premium performance with a 2967cc diesel engine. 747 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 25% of all 2021 cars for reliability.
With an average of 35,299 miles at 3 years old, AUDI Q8 SLN BLK ED 50 TDI MHEV QT A 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 Q8 SLN BLK ED 50 TDI MHEV QT A 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 2021 AUDI Q8 SLN BLK ED 50 TDI MHEV QT A?
Total estimated annual running cost is £1,690 (£141/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 AUDI Q8 SLN BLK ED 50 TDI MHEV QT A
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 Q8 SLN BLK ED 50 TDI MHEV QT A
The AUDI Q8 SLN BLK ED 50 TDI MHEV QT A is actually the most reliable option among similar diesel premium performances from this era. Here are comparable diesel cars with similar engines:
- MERCEDES E (2019) 90% pass rate (-5%) from 41,000 tests
- FORD RANGER (2019) 87% pass rate (-8%) from 32,194 tests
- AUDI Q5 (2019) 93% pass rate (-2%) from 24,241 tests
- AUDI A5 (2019) 90% pass rate (-5%) from 22,290 tests