The picture
A3 Sport 30 Tfsi: a strong MOT record by UK norms
Across 754 MOT tests, the A3 Sport 30 Tfsi returns 89.1% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is tyre tread under the limit. A seriously damaged tyre and windscreen damage round out the top three. Average tested mileage sits at 24,810, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
Top ten reasons for rejection.
- 01
Tyre tread depth not in accordance with the requirements
28 occurrences · 3.7% of tests
- 02
A tyre seriously damaged
22 occurrences · 2.9% of tests
- 03
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
13 occurrences · 1.7% of tests
- 04
A tyre cords visible or damaged
10 occurrences · 1.3% of tests
- 05
Wiper blade missing or obviously not clearing the windscreen
4 occurrences · 0.5% of tests
- 06
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
4 occurrences · 0.5% of tests
- 07
A wheel with a loose or missing wheel nut, bolt or stud
4 occurrences · 0.5% of tests
- 08
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
3 occurrences · 0.4% of tests
- 09
Engine MIL illuminated indicating a malfunction
3 occurrences · 0.4% of tests
- 10
A tyre seriously damaged
3 occurrences · 0.4% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 3 failures
£140–£235
If every one of this A3 Sport 30 Tfsi's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Tools that pre-empt a retest.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
Item 02 · Amazon UK
Bosch Aerotwin wiper blades
Cheap wipers fail the test on smear streaks. Bosch Aerotwins last a winter and clear a screen properly.
Search Amazon UK
Buying or keeping a A3 Sport 30 Tfsi?
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a A3 Sport 30 Tfsi and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.