Audi S3 Tfsi Quattro S-A: MOT pass rate and reliability data

The Audi S3 Tfsi Quattro S-A passes its MOT first time more often than the average UK car, by 16.2 percentage points. These figures come from the DVSA's full year of anonymised MOT results, covering 2,210 individual Audi S3 Tfsi Quattro S-A tests. Nothing here is an estimate or a survey.

The numbers

First-time pass rate92.9%
UK national average76.7%
Difference+16.2 points
Tests analysed2,210
Average mileage at test26,088 miles
Average year of manufacture2021
Reliability rank264 of 2,005 models

What this means if you are buying one

A 92.9% first-time pass rate means roughly 7 in every 100 Audi S3 Tfsi Quattro S-As 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 S3 Tfsi Quattro S-A tested had covered 26,088 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. On a Audi S3 Tfsi Quattro S-A bought as a 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 S3 Tfsi Quattro S-A 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 what damaged Audi S3 Tfsi Quattro S-As actually sold for at UK salvage auction.

Most common MOT failures on a Audi S3 Tfsi Quattro S-A

  1. A tyre seriously damaged, 2.2% of tests
  2. Tyre tread depth not in accordance with the requirements, 1.2% of tests
  3. A tyre cords visible or damaged, 0.6% of tests
  4. Windscreen washers not working or not providing sufficient fluid to clear the windscreen, 0.3% of tests
  5. Lambda coefficient outside the default limits or the range specified by the manufacturer, 0.2% of tests
  6. Brake lining or pad worn down to wear indicator, 0.2% of tests
  7. a brake lining or pad worn below 1.5mm, 0.1% of tests
  8. Number plate does not conform to the specified requirements, 0.1% of tests
  9. A headlamp cleaning device inoperative in the case of LED or gas discharge systems (HID), 0.1% of tests (4.83x the national rate for this defect)
  10. Engine MIL illuminated indicating a malfunction, 0.1% of tests

From 5,134 DVSA-tracked Audi S3 Tfsi Quattro S-A tests, 2024. DVSA testers marked 7.96% of these flagged Audi S3 Tfsi Quattro S-A defects as "dangerous", meaning the tester judged the car unsafe to drive away, against 4.97% nationally.

Audi S3 Tfsi Quattro S-A pass rate by model year

Pass rates fall steadily as cars age, so the model year matters as much as the model. First-time pass rate for each Audi S3 Tfsi Quattro S-A year:

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All 2,005 models ranked by MOT pass rate