The picture
A1 Sport 25 Tfsi S-A: a strong MOT record by UK norms
Across 515 MOT tests, the A1 Sport 25 Tfsi S-A returns 87.0% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is windscreen damage. Brake pads worn below 1.5 mm and a seriously damaged tyre round out the top three. Average tested mileage sits at 22,396, 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
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
12 occurrences · 2.3% of tests
- 02
a brake lining or pad worn below 1.5mm
11 occurrences · 2.1% of tests
- 03
A tyre seriously damaged
10 occurrences · 1.9% of tests
- 04
Tyre tread depth not in accordance with the requirements
9 occurrences · 1.7% of tests
- 05
A tyre cords visible or damaged
8 occurrences · 1.6% of tests
- 06
Seat belt not functioning as intended or of an incorrect type
4 occurrences · 0.8% of tests
- 07
Windscreen or window excessively tinted but not adversely affecting driver's view
3 occurrences · 0.6% of tests
- 08
Wiper blade defective
3 occurrences · 0.6% of tests
- 09
A headlamp cleaning device inoperative in the case of LED or gas discharge systems (HID)
3 occurrences · 0.6% of tests
- 10
A wheel with a loose or missing wheel nut, bolt or stud
3 occurrences · 0.6% 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
£200–£350
If every one of this A1 Sport 25 Tfsi S A'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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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
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
Item 02 · 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
Buying or keeping a A1 Sport 25 Tfsi S A?
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 A1 Sport 25 Tfsi S A 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.