2004 SEAT Leon MOT pass rate, common failures & what to check
In 2025, 61.8% of SEAT Leons first used in 2004 passed their MOT first time, against 57.8% for all cars first used in 2004. Across 4,195 Leon first tests from 2023 to 2025, the most common failure areas were lamps and electrical equipment, brakes and suspension.
This page analyses first MOT tests for SEAT Leons first used in 2004 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.
Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026
How the 2004 SEAT Leon MOT pass rate has changed
Share of first tests passed in each year, Leons first used in 2004 against all cars first used in 2004 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the Leon figure was 4.0 points higher.
View this chart as a table
| Test year | 2004 Leon | All cars first used 2004 | Leon first tests |
|---|---|---|---|
| 2021 | 56.9% | 53.9% | 2,616 |
| 2022 | 59.7% | 55.2% | 2,097 |
| 2023 | 60.2% | 56.0% | 1,728 |
| 2024 | 61.2% | 56.4% | 1,370 |
| 2025 | 61.8% | 57.8% | 1,097 |
Common 2004 SEAT Leon MOT failures
Share of the 1,637 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.
Most common failure items
| DVSA failure item | Share of failed first tests | Tests |
|---|---|---|
| Parking brake efficiency (sp): efficiency below requirements | 12.8% | 209 |
| Position lamp: not working | 11.7% | 191 |
| Drive shaft joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt | 10.4% | 170 |
| Malfunction indicator lamp: inoperative or indicates a malfunction | 9.9% | 162 |
| Stop lamp: not working | 9.4% | 154 |
Item names are DVSA’s own wording. 2023–2025 combined.
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What to check on a 2004 SEAT Leon before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Lamps and electrics. Ask someone to watch while you work the brake lights, indicators, sidelights, dipped and main beam, and the number-plate lamps.
- Brakes. Worth looking at the discs and pads through the wheel spokes for scoring and a worn lip, and noticing on the test drive whether the car pulls to one side or the pedal feels long.
- Suspension. Worth looking behind the front wheels with a torch at the coil springs, and listening for knocks over bumps on the test drive.
Common 2004 SEAT Leon MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2004 Leons, as a share of all 4,195 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Rigid brake pipes: corroded, covered in grease or other material | 17.3% | 725 |
| Tread depth: worn close to legal limit/worn on edge | 16.8% | 703 |
| Engine oil leaks: leak, but not excessive | 15.1% | 633 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 14.5% | 610 |
| Suspension arm pins and bushes: pin or bush worn but not resulting in excessive movement | 10.3% | 431 |
Questions about the 2004 SEAT Leon MOT
What is the MOT pass rate of a 2004 SEAT Leon?
In 2025, 61.8% of Leons first used in 2004 passed their MOT first time, against 57.8% for all cars first used in 2004. A car fixed during the test counts as a fail.
What does a 2004 Leon most often fail its MOT on?
Lamps and electrical equipment (in 48.4% of failed first tests, 2023–2025), brakes (32.7%) and suspension (30.7%). The single most common item was “Parking brake efficiency (sp): efficiency below requirements” (12.8%).
How often does a 2004 SEAT Leon fail its MOT?
In 2025, 38.2% of first tests on Leons first used in 2004 did not pass first time: 30.1% failed, and a further 8.1% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 1,637 of 4,195 first tests did not pass first time.
What are the most common 2004 SEAT Leon MOT advisories?
“Rigid brake pipes: corroded, covered in grease or other material” (on 17.3% of first tests, 2023–2025), “Tread depth: worn close to legal limit/worn on edge” (16.8%), “Engine oil leaks: leak, but not excessive” (15.1%), “Brake discs: worn, pitted or scored, but not seriously weakened” (14.5%) and “Suspension arm pins and bushes: pin or bush worn but not resulting in excessive movement” (10.3%).
Is a 2004 SEAT Leon reliable?
An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 56.9% in 2021 to 61.8% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 2004
The most-tested cars from the same year. Each page uses the same method.
2004 Ford Fiesta MOT statistics · 2004 MINI Hatch MOT statistics · 2004 Ford Focus MOT statistics · 2004 Toyota Yaris MOT statistics · 2004 Volkswagen Polo MOT statistics
Checking a specific 2004 Leon?
The numbers above cover every Leon first used in 2004 and tested in Great Britain. Our free check shows the actual MOT history, mileage record and tax status of the one you are looking at.
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