2023 Renault Master Lm35 Business+ Blue — MOT failures & pass rate
The 2023 Renault Master Lm35 Business+ Blue passed 94.1% of its 661 recorded MOT tests. That is effectively the same as all cars of a similar age (5.8% fail rate), so the MOT record here is unremarkable in either direction. Failures cluster in lighting & signalling, brakes and body, structure & corrosion.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 9.1% of tests against 1.7% for the next-worst category.
At component level the recurring items are headlamp aim, outline marker lamp and headlamp — headlamp aim alone was recorded 39 times.
A 60-90k example is materially riskier than a 0-30k one: 13.0% versus 4.0%.
Brakes is the most common advisory, noted on 9.1% of tests — work that passed today but is likely due soon.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 9.1% | 60 |
| 2 | Brakes | 1.7% | 11 |
| 3 | Body, structure & corrosion | 1.7% | 11 |
| 4 | Tyres | 1.4% | 9 |
| 5 | Emissions & environmental | 1.2% | 8 |
| 6 | Visibility | 1.1% | 7 |
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 | 39 |
| 2 | Outline marker lamp | 28 |
| 3 | Headlamp | 16 |
| 4 | Malfunction indicator lamp | 6 |
| 5 | Wipers | 6 |
| 6 | Registration plate lamp(s) | 6 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 9.1% | 60 |
| 2 | Tyres | 6.7% | 44 |
| 3 | Lighting & signalling | 3.8% | 25 |
| 4 | Suspension | 2.3% | 15 |
| 5 | Visibility | 1.8% | 12 |
| 6 | Body, structure & corrosion | 1.5% | 10 |
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 | 397 | 4.0% |
| 30-60k | 196 | 7.6% |
| 60-90k | 54 | 13.0% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 303 | 3.3% |
| 2025 | 350 | 8.3% |
What to check before buying a 2023 Master Lm35 Business+ Blue
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 9.1% of tests. Start there.
- Lighting & signalling (9.1% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (1.7% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Body, structure & corrosion (1.7% 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+.
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 2023 Renault Master Lm35 Business+ Blues pass their MOT?
94.1% of the 661 2023 Renault Master Lm35 Business+ Blue MOT tests in this dataset passed — a 5.9% fail rate.
What is the most common MOT failure on a 2023 Renault Master Lm35 Business+ Blue?
Lighting & signalling, recorded in 9.1% of tests, followed by brakes (1.7%).
Does the 2023 Master Lm35 Business+ Blue get worse with mileage?
Its MOT fail rate rises from 4.0% in the 0-30k band to 13.0% in the 60-90k band.
Methodology & source. Based on 661 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.