2015 Dethleffs Sunlight 2.3L Diesel · FN65 BLZ

Brake‑system reliability dominates the vehicle’s recent MOT narrative, with a dangerous rear‑brake hose leak recorded in September 2024 and a major parking‑brake efficiency failure just a year later; both items point to potential hydraulic degradation that could compromise stopping performance if left unaddressed. The subsequent passes in 2025 and September 2026, each showing no defects, indicate that the issues were either remedied or have not re‑manifested, but the history still flags the braking circuit as the primary mechanical risk for a prospective buyer. At 14,934 mi after eleven years the annualised mileage averages roughly 1,350 mi, well below typical usage for a 2015 model. Such low utilisation often reflects periods of infrequent driving or extended storage, which can accelerate ageing of rubber components, seals and hoses even when wear from distance is minimal. The MOT record shows a consistent yearly test schedule with no gaps, suggesting the vehicle has been regularly presented for inspection despite the modest mileage, but the low‑use profile reinforces the need to verify the condition of time‑sensitive parts rather than assuming low wear equates to good health. When examining the brakes, a test‑drive should include a firm, progressive pedal feel without sponginess, and the vehicle should stop in a straight line without pulling to one side. Pay particular attention to any external fluid traces around the nearside rear‑brake hose connection and listen for hissing or wet spots that could indicate a recurring leak. The parking brake must hold the car securely on an incline; any gradual release or need for excessive force on the lever suggests the underlying mechanism may still be compromised and could require adjustment or replacement of cables, shoes or the rear‑drum assembly. The power‑steering advisory from 2024 warrants a visual inspection of the steering rack for any seepage and a drive‑by check for a consistent, smooth steering effort without sudden drag or whining noises that could betray internal wear. Verify that all external lighting, including the registration‑plate lamp flagged in 2022, operates correctly, and inspect surrounding bodywork for corrosion that might affect hose routing or rack mounts. Given the documented hydraulic and steering concerns, a comprehensive service of the brake circuit—including hose replacement, fluid flush and parking‑brake overhaul—paired with a power‑steering system check, would be prudent before committing to purchase.