2021 Mercedes-Benz Eqv 300 + — MOT failures & pass rate
The 2021 Mercedes-Benz Eqv 300 + passed 90.9% of its 1,599 recorded MOT tests. All cars of a similar age fail at 8.2%, so the 2021 Eqv 300 + sits squarely on the average. Failures cluster in tyres, body, structure & corrosion and visibility.
What the MOT record shows
Tyres dominates the failure mix at 5.5% of all tests — 3.4 points clear of body, structure & corrosion, so it is the first thing to check.
At component level the recurring items are joints, wipers and tread depth — joints alone was recorded 40 times.
Mileage matters less than usual here: the 2021 Eqv 300 + fails 9.3% of the time in the 0-30k band and 6.5% at 90-120k, a spread of only 2.8 points.
Advisories point at the next bill rather than this one: tyres was flagged on 15.2% of tests without failing them.
The trend is worsening — 4.5% of tests failed in 2022 against 8.7% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 5.5% | 88 |
| 2 | Body, structure & corrosion | 2.1% | 34 |
| 3 | Visibility | 2.1% | 33 |
| 4 | Suspension | 1.3% | 20 |
| 5 | Brakes | 0.6% | 10 |
| 6 | Lighting & signalling | 0.4% | 7 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Joints | 40 |
| 2 | Wipers | 30 |
| 3 | Tread depth | 17 |
| 4 | Shock absorbers | 16 |
| 5 | Headlamp aim | 9 |
| 6 | Service brake performance | 7 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 15.2% | 243 |
| 2 | Other defects | 3.9% | 63 |
| 3 | Visibility | 2.1% | 34 |
| 4 | Body, structure & corrosion | 2.0% | 32 |
| 5 | Suspension | 2.0% | 32 |
| 6 | Brakes | 1.9% | 30 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 578 | 9.3% |
| 30-60k | 652 | 9.4% |
| 60-90k | 252 | 8.7% |
| 90-120k | 92 | 6.5% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2022 | 66 | 4.5% |
| 2023 | 227 | 5.3% |
| 2024 | 640 | 11.3% |
| 2025 | 666 | 8.7% |
What to check before buying a 2021 Eqv 300 +
On a 2021 Eqv 300 +, tyres is what the MOT record says goes wrong most — it appeared in 5.5% of tests. Check these areas before you commit.
- Tyres (5.5% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Body, structure & corrosion (2.1% of tests): The one to take seriously on older cars — corrosion to structural areas can be costly and is an MOT failure. Typical repair: £200–£1,500+.
- Visibility (2.1% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2021 Mercedes-Benz Eqv 300 +s pass their MOT?
90.9% of the 1,599 2021 Mercedes-Benz Eqv 300 + MOT tests in this dataset passed — a 9.1% fail rate.
What is the most common MOT failure on a 2021 Mercedes-Benz Eqv 300 +?
Tyres, recorded in 5.5% of tests, followed by body, structure & corrosion (2.1%).
Does the 2021 Eqv 300 + get worse with mileage?
Its MOT fail rate rises from 9.3% in the 0-30k band to 6.5% in the 90-120k band.
Methodology & source. Based on 1,599 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.