Is the Audi S4 black edition tdi quattro a reliable?

The Audi S4 black edition tdi quattro a has an average MOT pass rate of 94% across 3 years, based on 1,625 tests in 2026. That's 12 points above the national average of 82%. The most reliable year is 2021 with a 98% pass rate.

Which year Audi S4 black edition tdi quattro a is best?

The 2021 Audi S4 black edition tdi quattro a has the highest MOT pass rate at 98%, while the 2019 model has the lowest at 91%. There's a 7 percentage point spread between the best and worst years.

Audi S4 black edition tdi quattro a

Reliability, running costs, and MOT data across 3 years from 1,625 real MOT tests.

Avg Pass Rate

94%

Total Tests

1,625

Best Year

2021 (98%)

Years Covered

About the Audi S4 black edition tdi quattro a

The Audi S4 black edition tdi quattro a has been tested 1,625 times in 2026 MOT data across 3 model years (2019 to 2021), with an average pass rate of 94%. That's comfortably above the national average of 82%, making it a reliable choice. Available as diesel.

Best and Worst Years

The 2021 model is the most reliable with a 98% pass rate from 64 tests. The 2019 model has the lowest at 91%. The 7 point spread between years means reliability varies somewhat, but no year is dramatically different.

Reliability Trend

Newer AUDI S4 BLACK EDITION TDI QUATTRO As show better MOT pass rates than older ones, with an average improvement of 5 percentage points.

Mileage Across Years

The oldest model in our data (2019) averages 45,639 miles, while the newest (2021) averages 35,102 miles.

Compared to the Audi brand average of 90%, the S4 black edition tdi quattro a performs 4 points better, making it one of the more reliable options in the Audi range.