Pass rate
92.7%
Above average — 1.5 pts ahead of the 91.2% that cars this age and mileage manage.
Across 275 recorded tests.
Typical repair bill £53–£124
2021 Audi A6 Sln MOT pass rate
- 2021
- typical 36,450 mi
Most common fault
Tyres
55.0% of faults · 19.8% nationally
mostly tread below the limit, cuts and sidewall bulges.
Part only £55–£85 for Tread depth below 1.6 mm. What fitting it takes →
Which year to buy
- Best 2022 96.8% pass
- Avoid 2021 92.7% pass · this year
Across the 3 years on record, a spread of 4.1 points. See every year →
- First-attempt pass
- 92.7%
- Typical mileage
- 36k mi
The 2021 Audi A6 Sln MOT pass rate is 92.7% of its MOT tests — 1.5 points ahead of what its age and mileage predict. Tyres is the biggest single reason it fails, at 55.0% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how Audi A6 Sln does in your corner of the country.
Expert verdict
Tyres: 2.8× the national share
Tyres make up 55.0% of everything recorded on the 2021 Audi A6 Sln, against 19.8% nationally — 35.2 points above. Check all four tyres yourself, including the inner shoulders, and look at the date stamp — a tyre can pass on tread and still be six years old.
- When it fails, it costs. Only 6% of this model’s typical repairs come in under £30 in parts — the failures here tend to be the kind that need a garage rather than a bulb.
- Based on a small sample. 275 tests back this page. That is enough to publish and to index, not enough to treat the decimal places as precise — read the pattern, not the second digit.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a Audi A6 Sln? Get an email when these numbers change .
How does the 2021 Audi A6 Sln compare?
Cars of this age and mileage average 91.2%, so this figure is 1.5 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 92.7%. The median 2021 Audi A6 Sln in this dataset had covered 36,450 mi.
64% of the tests on this vehicle ran on Hybrid, which passed 94.9% of the time. Pass rates also shift with the test month: tests recorded October–March passed 94.1% of the time, April–September 91.9%.
The single most recorded failure item is "Windscreen damaged but not adversely affecting driver's view", noted on 4.36% of tests.
- 275 recorded tests behind this page.
- 92.7% overall pass rate, 92.7% on a first attempt.
- Across every year of the Audi A6 Sln, the average is 94.4% — best year 2022 (96.8%), worst 2021 (92.7%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 275
- Typical mileage (median)
- 36,450 mi
- Make and model
- Audi A6 Sln
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Windscreen
Typically a garage job — get quotes before committing.
Does mileage affect the A6 Sln MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 79% so small gaps stay visible.
Fuel type and reliability
Pass rate by fuel type. Hybrid is the most common here (64% of tests).
Regional pass rates for the A6 Sln
| Region | Tests | Pass rate |
|---|---|---|
| South East | 73 | 94.5% |
| London | 40 | 90.0% |
| North West | 33 | 87.9% |
| Yorkshire | 31 | 93.5% |
| West Midlands | 22 | 81.8% |
| East Midlands | 19 | 94.7% |
| Scotland | 16 | 100.0% |
| South West | 15 | 93.3% |
Regions come from the postcode area recorded at the test station. Areas on region borders are assigned to the region with the majority of their population.
What fails a 2021 A6 Sln
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2021 A6 Sln
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the windscreen 4.4% of tests
“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.
-
Check the tyre tread 2.2% of tests
“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.
-
Check the brakes 0.7% of tests
“brake pads less than 1.5 mm thick”
Look through the spokes of each wheel at the pad — less than 3mm of friction material, or a lip on the disc edge, is the usual failure. Check the handbrake holds on a slope with a few clicks, not at the top of its travel.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2021 A6 Sln through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £53–£124 — and 6% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £53–£124
- Cheapest common item: anti-lock braking system warning lamp…
- £3–£15
- Dearest common item: windscreen damaged
- £80–£200
- Common items a careful owner can do at home
- 90%
- Repairs that still cost under £30
- 6%
Estimates from typical UK parts prices, weighted by how often each item appears in 275 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the A6 Sln, side by side
3 model years on record, from 2020 to 2022. Across them the pass rate runs from 92.7% to 96.8% — a spread of 4.1 points. The bar under each year is the item that failed it most often.
- 2020 95.0% windscreen damaged but not…
- 2021 92.7%windscreen damaged but not…
- 2022 96.8% windscreen damaged but not…
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2021 Audi A6 Sln with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2021 cars with a similar record
- Nissan Qashqai 92.7%
- BMW 118 92.7%
- MINI Countryman 92.7%
- Kia Rio 92.7%
- Toyota C-Hr Gr 92.7%
- MINI John COOPER Works 92.7%
Closest pass rates among 2021 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2021 Audi A6 Sln 10 failure items · 6 advisories · 9 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 131 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Tyres | 72 | 55.00% | 19.76% | +35.24 |
| Non-component advisories | 23 | 17.60% | 4.18% | +13.42 |
| Visibility | 14 | 10.70% | 4.97% | +5.73 |
| Brakes | 10 | 7.60% | 20.89% | −13.29 |
| Suspension | 6 | 4.60% | 20.98% | −16.38 |
| Lamps, reflectors and electrical equipment | 2 | 1.50% | 12.21% | −10.71 |
| Identification of the vehicle | 2 | 1.50% | 1.76% | −0.26 |
| Seat belts and supplementary restraint systems | 1 | 0.80% | 0.82% | −0.02 |
| Road Wheels | 1 | 0.80% | 0.75% | +0.05 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Windscreen damaged but not adversely affecting driver's view Visibility | Minor | 4.4% | £80–200 |
| Tread depth below requirements of 1.6mm Tyres | Major | 2.2% | £45–95 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Major | 1.8% | £45–95 |
| Brake pads less than 1.5 mm thick Brakes | Major | 0.73% | £18–45 |
| Has ply or cords exposed Tyres | Major | 0.73% | £45–95 |
| Obviously under inflated Tyres | Minor | 0.73% | £45–95 |
| Anti-lock braking system warning lamp indicates an ABS fault Brakes | Major | 0.36% | £3–15 |
| Fixing missing Road Wheels | Major | 0.36% | £20–55 |
| Has a lump, caused by separation or partial failure of its structure Tyres | Major | 0.36% | £45–95 |
| Headlamp cleaning device for LED or HID headlamp inoperative Lamps, reflectors and electrical equipment | Major | 0.36% | £5–25 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Tread depth below requirements of 1.6mm Tyres | Advisory | 13.4% | £45–95 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Advisory | 4.0% | £45–95 |
| Non-component advisories Nail in tyre Non-component advisories | Advisory | 4.0% | £45–95 |
| Non-component advisories Items removed from drivers view prior to test Non-component advisories | Advisory | 2.5% | £20–80 |
| Tread depth tread pattern not visible over the whole tread area when minimum depth required is 1.0mm Tyres | Advisory | 2.5% | £45–95 |
| Brake pads less than 1.5 mm thick Brakes | Advisory | 1.8% | £18–45 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 99 | 91.9% | 21,762 mi |
| 30-60k | 130 | 94.6% | 42,002 mi |
| 60-90k | 40 | 87.5% | 73,513 mi |
| 90-120k | 5 | 100.0% | 100,058 mi |
| 120k+ | 1 | 100.0% | 127,201 mi |
Source: 275 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2021 A6 Sln MOT questions
What is the MOT pass rate for a 2021 Audi A6 Sln?
92.7% of the 275 2021 Audi A6 Sln tests in this dataset passed, against a national average of 91.2% for cars first used in 2021. First-attempt pass rate: 92.7%.
What are the most common MOT failures on a 2021 Audi A6 Sln?
The three most recorded items are windscreen damaged but not adversely affecting driver's view (4.36%), tread depth below requirements of 1.6mm (2.18%), has a cut in excess of the requirements deep enough to reach the ply or cords (1.82%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2021 Audi A6 Sln MOT pass rate?
Yes. Cars under 30,000 miles passed 91.9% of the time, falling to 100.0% for those over 120,000 miles. The median 2021 Audi A6 Sln in this dataset had covered 36,450 mi.
Which fuel type is most reliable for a 2021 Audi A6 Sln?
Hybrid: 94.9% pass rate across 175 tests. Petrol: 89.0% pass rate across 100 tests. Shares are of the tests on this vehicle that recorded each fuel type.
Does the season affect the 2021 Audi A6 Sln MOT pass rate?
Tests recorded in the winter months (October–March) passed 94.1% of the time; summer months (April–September) passed 91.9%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.