2021 Volvo Xc40 Rdesign Pro B4 Mhev A — MOT failures & pass rate
Across 797 MOT tests analysed for the 2021 Volvo Xc40 Rdesign Pro B4 Mhev A, the most common recorded failure areas were tyres, lighting & signalling and visibility. Its pass rate of 94.3% was above the average for cars of a similar age (91.2%).
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 4.3% | 34 |
| 2 | Lighting & signalling | 1.3% | 10 |
| 3 | Visibility | 0.9% | 7 |
| 4 | Seat belts & restraints | 0.3% | 2 |
| 5 | Brakes | 0.3% | 2 |
| 6 | Suspension | 0.3% | 2 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 7 |
| 2 | Wipers | 6 |
| 3 | Washers | 3 |
| 4 | Brake pads | 2 |
| 5 | Registration plates | 2 |
| 6 | Tread depth | 2 |
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 | 21.1% | 168 |
| 2 | Brakes | 7.6% | 61 |
| 3 | Other defects | 5.1% | 41 |
| 4 | Visibility | 1.4% | 11 |
| 5 | Suspension | 0.8% | 6 |
| 6 | Lighting & signalling | 0.6% | 5 |
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 | 483 | 4.5% |
| 30-60k | 298 | 7.4% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 392 | 5.6% |
| 2025 | 395 | 5.8% |
What to check before buying a 2021 Xc40 Rdesign Pro B4 Mhev A
Before buying a 2021 Volvo Xc40 Rdesign Pro B4 Mhev A, focus on the areas it most often fails on. Tyres accounted for 4.3% of tests for this year.
- Tyres (4.3% 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.
- Lighting & signalling (1.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (0.9% 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 Volvo Xc40 Rdesign Pro B4 Mhev As pass their MOT?
94.3% of the 797 2021 Volvo Xc40 Rdesign Pro B4 Mhev A MOT tests in this dataset passed — a 5.7% fail rate.
What is the most common MOT failure on a 2021 Volvo Xc40 Rdesign Pro B4 Mhev A?
Tyres, recorded in 4.3% of tests, followed by lighting & signalling (1.3%).
Does the 2021 Xc40 Rdesign Pro B4 Mhev A get worse with mileage?
Its MOT fail rate rises from 4.5% in the 0-30k band to 7.4% in the 30-60k band.
Methodology & source. Based on 797 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.