2023 Renault Trucks Master 35 Lwb — MOT failures & pass rate
321 MOT tests on the 2023 Renault Trucks Master 35 Lwb are in this dataset, and 91.0% of them passed. That is 3.2 percentage points worse than all cars of a similar age, which fail at 5.8%. Failures cluster in lighting & signalling, visibility and brakes.
What the MOT record shows
One area stands out: lighting & signalling, recorded in 13.7% of tests against 3.1% for the next-worst category.
At component level the recurring items are headlamp aim, outline marker lamp and wipers — headlamp aim alone was recorded 40 times.
Condition tracks the odometer closely. Failures run at 7.6% in the 0-30k band and 17.6% in the 60-90k band, a 10.0-point spread — more than double.
Tyres is the most common advisory, noted on 12.5% 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 | 13.7% | 44 |
| 2 | Visibility | 3.1% | 10 |
| 3 | Brakes | 3.1% | 10 |
| 4 | Emissions & environmental | 2.2% | 7 |
| 5 | Tyres | 1.6% | 5 |
| 6 | Suspension | 0.9% | 3 |
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 | 40 |
| 2 | Outline marker lamp | 23 |
| 3 | Wipers | 12 |
| 4 | Brake pads | 10 |
| 5 | Headlamp | 5 |
| 6 | Registration plate lamp(s) | 5 |
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 | 12.5% | 40 |
| 2 | Brakes | 12.5% | 40 |
| 3 | Lighting & signalling | 3.7% | 12 |
| 4 | Visibility | 3.7% | 12 |
| 5 | Other defects | 2.8% | 9 |
| 6 | Suspension | 2.2% | 7 |
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 | 157 | 7.6% |
| 30-60k | 123 | 8.1% |
| 60-90k | 34 | 17.6% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2024 | 141 | 4.3% |
| 2025 | 173 | 13.3% |
What to check before buying a 2023 Master 35 Lwb
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 13.7% of tests. Start there.
- Lighting & signalling (13.7% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (3.1% 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.
- Brakes (3.1% 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.
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 Trucks Master 35 Lwbs pass their MOT?
91.0% of the 321 2023 Renault Trucks Master 35 Lwb MOT tests in this dataset passed — a 9.0% fail rate.
What is the most common MOT failure on a 2023 Renault Trucks Master 35 Lwb?
Lighting & signalling, recorded in 13.7% of tests, followed by visibility (3.1%).
Does the 2023 Master 35 Lwb get worse with mileage?
Its MOT fail rate rises from 7.6% in the 0-30k band to 17.6% in the 60-90k band.
Methodology & source. Based on 321 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.