Audi A3 S Line 30 Tfsi: MOT pass rate and reliability data

The Audi A3 S Line 30 Tfsi passes its MOT first time more often than the average UK car, by 14.9 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 2,145 individual Audi A3 S Line 30 Tfsi tests. Nothing here is an estimate or a survey.

The numbers

What this means if you are buying one

A 91.6% first-time pass rate means roughly 8 in every 100 Audi A3 S Line 30 Tfsis presented for MOT fail on the first attempt. That is better than average, so a well-kept example is a reasonably safe used buy. The average Audi A3 S Line 30 Tfsi tested had covered 27,935 miles and was built around 2021.

What this means at salvage auction

Pass rate is a proxy for what a car costs to keep on the road. The Audi A3 S Line 30 Tfsi sits 14.9 points above the national average, ranked 449 of 2,005 models. On one bought as repairable salvage, the mechanical side is less likely to spring surprises, so your repair estimate should hold up reasonably well.

Before you bid: run the lot through the analyzer, check the car's own record, check the mileage, decode the VIN, and if it carries a marker use the write-off value calculator. Or compare it against another model.

Looking at a specific Audi A3 S Line 30 Tfsi rather than the model in general? The free check covers its MOT and mileage history, and the full HPI report confirms the insurance write-off category, outstanding finance and whether it is recorded stolen, from licensed data for 5 credits. Already own one that has been damaged? Work out whether fixing it beats selling it with the repair or scrap calculator, and see recorded closing bids for damaged Audi A3 S Line 30 Tfsis at UK salvage auction.

Most common MOT failures on a Audi A3 S Line 30 Tfsi

1. Tyre tread depth not in accordance with the requirements, 3.2% of tests
2. A tyre seriously damaged, 3.1% of tests
3. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 1% of tests
4. A tyre cords visible or damaged, 0.7% of tests
5. Engine MIL illuminated indicating a malfunction, 0.4% of tests
6. Wiper blade missing or obviously not clearing the windscreen, 0.4% of tests
7. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.3% of tests
8. An SRS malfunction indicator lamp (MIL) indicates a system malfunction, 0.3% of tests
9. Number plate does not conform to the specified requirements, 0.2% of tests (1.26x the national rate for this defect)
10. Excessive fluctuation in brake effort through each wheel revolution., 0.2% of tests

From 2,144 DVSA-tracked Audi A3 S Line 30 Tfsi tests, 2024. DVSA testers marked 6.68% of these flagged Audi A3 S Line 30 Tfsi defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 5.11% nationally.

Most common MOT advisories on a Audi A3 S Line 30 Tfsi

An advisory doesn't fail the car - the tester flags it as worth watching, but it still passes. A different list from the failures above: what testers are noting on a Audi A3 S Line 30 Tfsi before it actually fails on it.

1. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage, 8% of tests (2.05x the national rate for this advisory), also fails
2. A tyre seriously damaged, 20.6% of tests (1.33x the national rate for this advisory), also fails
3. Tyre tread depth not in accordance with the requirements, 21.1% of tests, also fails
4. Brake disc or drum excessively weakened, insecure or fractured, 3.7% of tests
5. a brake lining or pad worn below 1.5mm, 3.2% of tests
6. Number plate inscription missing or illegible, 1.4% of tests
7. Brake disc or drum significantly and obviously worn, 0.6% of tests
8. Excessive fluctuation in brake effort through each wheel revolution., 0.2% of tests, also fails
9. Brake fluid significantly below minimum mark, 0.1% of tests (1.79x the national rate for this advisory)
10. Number plate missing or so insecure that it is likely to fall off, 0.1% of tests (1.95x the national rate for this advisory)

From 2,144 DVSA-tracked Audi A3 S Line 30 Tfsi tests, 2024.

Audi A3 S Line 30 Tfsi pass rate by model year

From its 2020 to its 2021 model year, the Audi A3 S Line 30 Tfsi's first-time pass rate has fallen 0.2 points, from 92% to 91.8%, an unusual pattern where even its newest years fail more than its oldest. First-time pass rate for each Audi A3 S Line 30 Tfsi year:

• 2020 Audi A3 S Line 30 Tfsi - 92% first-time pass, 835 tests
• 2021 Audi A3 S Line 30 Tfsi - 91.8% first-time pass, 1,249 tests

Other Audi models

• Audi A3 - 78.1%
• Audi A4 - 76.3%
• Audi A1 - 79.5%
• Audi A6 - 81.9%
• Audi A5 - 80.4%
• Audi Tt - 78.8%
• Audi Q3 - 83.5%
• Audi Q5 - 84.8%

Models with a similar pass rate

• Volkswagen Up R-Line - 91.7%
• Kia Niro 4 + Ev - 91.6%
• MG 5 Exclusive - 91.6%
• Audi A5 S Line 40 Tfsi Mhev S-A - 91.6%
• Mercedes-Benz Gla 200 Amg Line Edition A - 91.6%
• Skoda Kodiaq Sportline Tsi S-A - 91.6%

If this car is a salvage or write-off

• What does Cat N mean? Category N explained
• What does Cat S mean? Category S explained
• Cat S vs Cat N: the real differences
• Do you need an HPI check on a car you know is a write-off?

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All 2,005 models ranked by MOT pass rate