Pass rate, every year
571 tests across 3 model years, 2020–2022.
+13.4 pts vs the national average
Pass rate, every year
571 tests across 3 model years, 2020–2022.
+13.4 pts vs the national average
Best year to buy
2022 96.8%
The strongest of the 3 years on record. See the 2022 page →
Worst year to buy
2021 92.7%
4.1 points below the 2022 peak. See the 2021 page →
The Audi A6 Sln MOT pass rate is 94.4%, +13.4 percentage points above the UK average. That is 571 DVSA MOT tests recorded between 2020 and 2022. This page lists the most common Audi A6 Sln MOT failures by category, names the best and worst model years, and finishes with a pre-MOT checklist you can run at home.
The Audi A6 Sln passed on its first attempt in 94.3%, and its overall record sits +13.4 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Audi A6 Sln in the 2023–2025 data: 571 tests across 3 model years (2020–2022). A test still carries exactly one pass or fail verdict.
| Measure | This model |
|---|---|
| Tests analysed | 571 |
| Overall pass rate | 94.4% |
| Passed on first attempt | 94.3% |
| Average mileage at test | 41,870 mi |
| Model years covered | 2020–2022 (3 years) |
| Versus UK national average | +13.4 pts above |
Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.
Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Audi A6 Sln, the Visibility section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.
| Inspection section | Share of failures |
|---|---|
| Visibility | 45% |
| Tyres | 35% |
| Lamps, reflectors and electrical equipment | 8% |
| Brakes | 6% |
| Identification of the vehicle | 2% |
| Suspension | 2% |
| Seat belts and supplementary restraint systems | 2% |
| Road Wheels | 2% |
Shares are over the Audi A6 Sln's recorded defect strings, merged across its year pages.
Around 45% of the recorded Audi A6 Sln failures fall in the Visibility section of the MOT inspection manual. Testers recorded "Windscreen damaged but not adversely affecting driver's view" (4.0%), "Wipers blade defective" (0.5%), "Mirrors slightly damaged" (0.2%) among the Audi A6 Sln's visibility faults.
Around 35% of the recorded Audi A6 Sln failures fall in the Tyres section of the MOT inspection manual. Testers recorded "Has a cut in excess of the requirements deep enough to reach the ply or cords" (1.6%), "Tread depth below requirements of 1.6mm" (1.4%), "Has ply or cords exposed" (0.4%) among the Audi A6 Sln's tyres faults.
Around 8% of the recorded Audi A6 Sln failures fall in the Lamps, reflectors and electrical equipment section of the MOT inspection manual. Testers recorded "Headlamp aim too high" (0.3%), "Headlamp aim too low" (0.3%), "Headlamp cleaning device for LED or HID headlamp inoperative" (0.2%) among the Audi A6 Sln's lamps, reflectors and electrical equipment faults.
The descriptions below are the exact DVSA failure strings testers recorded most often for the Audi A6 Sln, each with how many of the model's 571 tests it was noted on.
The strongest Audi A6 Sln model year on record is 2022 (96.8% across 156 tests), and the weakest is 2021 (92.7%). The gap between them is 4.1 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.
Audi A6 Sln reliability is improving in the DVSA data — the pass rate moves about 0.9 points a year across the most recent model years shown above.
| Year | Tests | Pass rate |
|---|---|---|
| 2022 A6 Sln | 156 | 96.8% |
| 2021 A6 Sln | 275 | 92.7% |
| 2020 A6 Sln | 140 | 95.0% |
Newest model year first. Only years with at least 50 recorded tests are listed.
These checks follow this Audi A6 Sln's own most-recorded failure strings, starting with what a tester is most likely to flag on a Audi A6 Sln.
the windscreen — “windscreen damaged”
Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.
the tyre tread — “tread depth below requirements of 1.6mm”
Check all four tyres cold, including the inner shoulder where wear hides — 1.6mm across the central three-quarters is the legal limit, and most testers fail at 1.6mm without argument.
the wipers and washers — “wipers blade defective”
Run the wipers with the screen wet: they should clear it in one sweep without smearing or juddering. Top the washer bottle up and check both jets hit the screen.
Derived from the DVSA failure strings testers recorded for the Audi A6 Sln. A check that finds nothing means the item is likely fine, not that the test is guaranteed.
94.4% of the 571 recorded Audi A6 Sln MOT tests ended in a pass, +13.4 percentage points above the national average. 94.3% of those passed on the first attempt.
2022 is the strongest Audi A6 Sln year on record at 96.8%, while 2021 is the weakest at 92.7%. The year-by-year table below lists every model year with at least 50 recorded tests.
The most recorded Audi A6 Sln failures are "Windscreen damaged but not adversely affecting driver's view" and "Has a cut in excess of the requirements deep enough to reach the ply or cords" — together around 6% of tests, mostly in the Visibility section.