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Audi Q8 S Line 55 TFSI MHEV Quat A

Reliability, estimated running costs, and MOT data across 2 model years from 342 MOT tests in 2024.

Avg Pass Rate

94%

Total Tests

342

Highest Pass Rate

2021 (94%)

Years Covered

2

About the Audi Q8 S Line 55 TFSI MHEV Quat A

The Audi Q8 S Line 55 TFSI MHEV Quat A was MOT tested 342 times in 2024 (DVSA data, retests included) across 2 model years (2020 to 2021), with an average pass rate of 94%. That's comfortably above the average of 82% across all models in our data. Our records list petrol versions.

Best and Worst Years

Of the years with at least 100 tests, the 2021 model has the highest pass rate at 94% from 161 tests. The 2020 model has the lowest at 93%. With just a 1 point gap, pass rates are similar across these years. Newer cars usually pass more often simply because they are younger.

Mileage Across Years

The oldest model in our data (2020) averages 33,996 miles, while the newest (2021) averages 28,871 miles.

Compared to the Audi brand average of 90%, the Q8 S Line 55 TFSI MHEV Quat A performs 4 points better, making it one of the more reliable options in the Audi range.

Estimated Running Costs

Fuel (Petrol, 2995cc)
£1,958
Road Tax
£200
MOT Test
£55
Predicted Repairs
£200
Total per year£2,413
Per month£201/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 55 TFSI MHEV Quat A?

vs average of all models+12% (82% avg)
vs Audi brand average+4% (90% avg)
Best to worst year spread1 percentage points

Audi Q8 S Line 55 TFSI MHEV Quat A by Year

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

YearPass RateTestsAvg Mileage
202194%16128,871 mi
202093%18133,996 mi

Questions about the Audi Q8 S Line 55 TFSI MHEV Quat A

Is the Audi Q8 S Line 55 TFSI MHEV Quat A reliable?

Across its 2 model years in our data (2020 to 2021), the Audi Q8 S Line 55 TFSI MHEV Quat A averages a 94% MOT pass rate, from 342 tests (DVSA MOT data for tests in 2024, retests included). That's 12 points above the average of 82% across all models in the same data. The 2021 model has the highest pass rate of the years with at least 100 tests, at 94%.

Which year Audi Q8 S Line 55 TFSI MHEV Quat A has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 Audi Q8 S Line 55 TFSI MHEV Quat A has the highest MOT pass rate at 94%, while the 2020 model has the lowest at 93%, a 1 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Audi Q8 S Line 55 TFSI MHEV Quat A Guides & Articles

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