MOT failures by make
Alfa Romeo MOT failures for “Side repeaters: not working”
Alfa Romeo cars failed their MOT on “Side repeaters: not working” in 1.31% of 146,332 tests in 2023–2024 (1,924 tests) — 2.8 times as often as comparable cars of the same age, mileage and fuel, which would have failed on it in about 0.47% of tests. It is the number 11 most common failure item on Alfa Romeos.
Data to 2024-12-30 · Page updated 2026-09-28 · Publisher: 73 Auto
- Alfa Romeo tests failing on it
- 1.31%
- 1,924 of 146,332 tests, 2023–2024
- Comparable cars
- 0.47%
- national rate at the same age, mileage and fuel
- Observed ÷ expected
- 2.82×
- 73 Auto analysis · rank #11 for Alfa Romeo
How unusual this is for the make
Across all MOT failures, Alfa Romeos fail 1.02× as often as comparable cars. On this item the gap is 2.78× wider than that overall level, so it is a genuine Alfa Romeo pattern rather than a reflection of how often the make fails in general. It is a major defect in the lights, reflectors and electrical part of the test. Nationally it appears on 0.42% of MOT tests.
Alfa Romeo models and “Side repeaters: not working”
The Alfa Romeo Giulietta is most affected (6.55× comparable cars); the Alfa Romeo MiTo least (0.38×). Not every model follows the make: the pattern is concentrated in some models. Model rows compare with cars of the same age and fuel.
| Model | Tests | Failed on it | vs similar cars |
|---|---|---|---|
| Alfa Romeo Giulietta | 52,254 | 3.10% | 6.55× |
| Alfa Romeo MiTo | 39,892 | 0.18% | 0.38× |
By age at test
The difference is largest at 11-12 years old: 3.31% of Alfa Romeo tests against 0.63% for comparable cars.
| Age (years) | Alfa Romeo tests | Alfa Romeo | Comparable cars |
|---|---|---|---|
| 3-4 | 10,663 | 0.06% | 0.14% |
| 5-6 | 16,573 | 0.42% | 0.23% |
| 7-8 | 18,660 | 0.73% | 0.34% |
| 9-10 | 19,493 | 1.65% | 0.46% |
| 11-12 | 27,848 | 3.31% | 0.63% |
| 13-15 | 29,617 | 1.16% | 0.63% |
| 16+ | 20,807 | 0.58% | 0.54% |
Other Alfa Romeo MOT faults that stand out
- Rbt (sp): efficiency below requirements · 2.11× comparable cars
- Position lamp: not working · 0.39× comparable cars
- Coil spring: fractured or broken · 1.54× comparable cars
- Condition: has ply or cords exposed · 1.57× comparable cars
Limitations
Official data: DVSA's anonymised MOT results (2023–2024), class 4 initial tests, cars at least 2.5 years old. 73 Auto analysis: the comparison rate applies the national rate of this item for each test's own age, mileage band and fuel to the Alfa Romeo tests. An MOT result reflects maintenance, mileage and how a car is used as well as its design, so this is not a measure of which make is most reliable. The wording of the defect is DVSA's.
Has this Alfa Romeo failed on it before?
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UK number plate or 17-character VIN
Where these figures come from
- Anonymised MOT tests and results (2023 and 2024) — Driver and Vehicle Standards Agency (DVSA). Open Government Licence v3.0.
Figures labelled as 73 Auto estimates are our own analysis of these sources, set out in the methodology and data sources. To report a factual error, see corrections.