Audi Q8 S Line 50TDI MHEV Quattro A

Reliability, estimated running costs, and MOT data across 1 model year from 555 MOT tests in 2024.

Avg Pass Rate

95%

Total Tests

555

Model Year

2021

Years Covered

About the Audi Q8 S Line 50TDI MHEV Quattro A

The Audi Q8 S Line 50TDI MHEV Quattro A was MOT tested 555 times in 2024 (DVSA data, retests included) across 1 model year (2021), with an average pass rate of 95%. That's comfortably above the average of 82% across all models in our data. Our records list diesel versions.

Compared to the Audi brand average of 90%, the Q8 S Line 50TDI MHEV Quattro A performs 5 points better, making it one of the more reliable options in the Audi range.

Estimated Running Costs

Fuel (Diesel, 2967cc)

£1,676

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£2,131

Per month£178/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2021 details

How reliable is the Audi Q8 S Line 50TDI MHEV Quattro A?

vs average of all models+13% (82% avg)

vs Audi brand average+5% (90% avg)

Audi Q8 S Line 50TDI MHEV Quattro A by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

Year	Pass Rate	Tests	Avg Mileage
2021	95%	555	32,646 mi

Questions about the Audi Q8 S Line 50TDI MHEV Quattro A

Is the Audi Q8 S Line 50TDI MHEV Quattro A reliable?

Across its 1 model year in our data (2021), the Audi Q8 S Line 50TDI MHEV Quattro A averages a 95% MOT pass rate, from 555 tests (DVSA MOT data for tests in 2024, retests included). That's 13 points above the average of 82% across all models in the same data.