2004 Mercedes-Benz ML MOT pass rate, common failures & what to check
In 2025, 58.1% of Mercedes-Benz MLs first used in 2004 passed their MOT first time, against 57.8% for all cars first used in 2004. Across 4,033 ML first tests from 2023 to 2025, the most common failure areas were lamps and electrical equipment, suspension and brakes.
This page analyses first MOT tests for Mercedes-Benz MLs 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 Mercedes-Benz ML MOT pass rate has changed
Share of first tests passed in each year, MLs 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 ML figure was in line with the all-cars figure.
View this chart as a table
| Test year | 2004 ML | All cars first used 2004 | ML first tests |
|---|---|---|---|
| 2021 | 53.6% | 53.9% | 2,629 |
| 2022 | 56.4% | 55.2% | 2,104 |
| 2023 | 57.6% | 56.0% | 1,733 |
| 2024 | 56.5% | 56.4% | 1,302 |
| 2025 | 58.1% | 57.8% | 998 |
Common 2004 Mercedes-Benz ML MOT failures
Share of the 1,719 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 |
|---|---|---|
| Track rod end: ball joint has excessive play | 16.2% | 279 |
| Coil spring: fractured or broken | 13.8% | 238 |
| Position lamp: not working | 13.4% | 230 |
| Stop lamp: not working | 12.9% | 222 |
| Headlamp aim: projected beam image is obviously incorrect | 9.7% | 166 |
Item names are DVSA’s own wording. 2023–2025 combined.
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Typical repair costs for common MOT failures
Typical UK garage prices for the job, not for an ML in particular, and not a quote.
| Failure item | Typical job | Typical UK price | Usual range |
|---|---|---|---|
| Coil spring: fractured or broken | Coil spring replacement | £248 | £175–£400 |
From published UK repair-cost guides, checked September 2026. Only jobs with a published typical price are shown.
What to check on a 2004 Mercedes-Benz ML 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.
- Suspension. Worth looking behind the front wheels with a torch at the coil springs, and listening for knocks over bumps on the test drive.
- 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.
Common 2004 Mercedes-Benz ML MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2004 MLs, as a share of all 4,033 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Engine oil leaks: leak, but not excessive | 30.8% | 1,242 |
| Rigid brake pipes: corroded, covered in grease or other material | 22.9% | 925 |
| Tread depth: worn close to legal limit/worn on edge | 16.5% | 665 |
| Brake pads: wearing thin | 13.7% | 553 |
| Ball joint: has slight play | 11.0% | 443 |
Questions about the 2004 Mercedes-Benz ML MOT
What is the MOT pass rate of a 2004 Mercedes-Benz ML?
In 2025, 58.1% of MLs 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 ML most often fail its MOT on?
Lamps and electrical equipment (in 56.5% of failed first tests, 2023–2025), suspension (37.5%) and brakes (32.7%). The single most common item was “Track rod end: ball joint has excessive play” (16.2%).
How often does a 2004 Mercedes-Benz ML fail its MOT?
In 2025, 41.9% of first tests on MLs first used in 2004 did not pass first time: 34.1% failed, and a further 7.8% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 1,719 of 4,033 first tests did not pass first time.
What are the most common 2004 Mercedes-Benz ML MOT advisories?
“Engine oil leaks: leak, but not excessive” (on 30.8% of first tests, 2023–2025), “Rigid brake pipes: corroded, covered in grease or other material” (22.9%), “Tread depth: worn close to legal limit/worn on edge” (16.5%), “Brake pads: wearing thin” (13.7%) and “Ball joint: has slight play” (11.0%).
Is a 2004 Mercedes-Benz ML 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 53.6% in 2021 to 58.1% 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
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