2009 Mercedes-Benz B-Class 2.0L Diesel · FP09 CLO

A deeply unusual DVSA history defines this 2009 Mercedes-Benz B-Class, characterised by a complete absence of any recorded defects, advisories, or component-specific failure entries across every test presented. No brake, suspension, tyre, exhaust, lighting, or corrosion observations have been logged at any point in the available record. While this presents an ostensibly immaculate paper trail, the pattern of alternating pass and fail outcomes without any accompanying defect data is atypical and warrants close scrutiny. Most recently failing on 20 January 2026 with no defects recorded, the vehicle appears to have been presented in a condition that an examiner could not certify as roadworthy, yet without any itemised reason documented. This combination suggests either a procedural retest following a prior refusal to test, an administrative issue, or defects that were resolved and validated without formal entry. A prospective buyer should obtain the VT30 refusal-to-test documentation or written explanation from the testing station to clarify the precise nature of the 2026 failure and the subsequent unrecorded retest that produced the clean pass history on either side. At roughly 4,178 miles per annum over a seventeen-year lifespan, this B-Class has been driven considerably less than the typical annual average for a vehicle of its age and class. Such low accumulation can reflect occasional short journeys, extended periods of inactivity, or a secondary household role, all of which carry distinct mechanical implications. Prolonged standing periods tend to accelerate ageing of rubber components such as suspension bushes, anti-roll bar links, and wishbone bearings, while also encouraging moisture accumulation within the brake hydraulic system and corrosion of the underside. Despite the very modest mileage, the 12V battery, brake fluid, coolant, and automatic transmission fluid will all have aged on a calendar basis rather than purely by use. The mileage progression between tests is broadly consistent with low annual use, with no evidence of significant gaps, clocked readings, or rapid accumulation that might suggest tampering or inconsistent vehicle identity. For a prospective buyer, the lack of specific component data means inspection attention must shift to the areas most commonly affected on a W245 B-Class of this vintage and low mileage. Particular focus should be placed on the front lower suspension arms, including the spring links and control arm bushes, which are known to deteriorate with age irrespective of mileage and typically produce clonking noises over uneven surfaces and vague steering response. On a test drive, listen for any knocking, creaking, or rubbing from the front axle over speed humps and listen for any knocking, creaking, or rubbing from the front axle over speed humps, and feel for imprecise directional changes or wandering at speed. The brake system should be evaluated by checking for binding calipers, a soft or spongy pedal suggesting fluid contamination, and uneven disc wear, particularly given the long calendar interval since the brake fluid was likely last replaced. Inspect the underside closely for any subframe corrosion, exhaust integrity, and signs of oil seepage from the engine or transmission, as standing periods can accelerate gasket degradation. Beyond the running gear, the inspection should account for the broader age-related concerns of a seventeen-year-old vehicle that has seen limited use. Check the condition of all rubber seals, including the sunroof drains and door check straps, and verify the operation of the climate control, electric windows, and central locking, as electrical faults and regulator failures are common on this model. The 12V battery should be load-tested rather than merely voltage-checked, given the likelihood of calendar degradation from irregular use, and the tyres examined for age-related sidewall cracking even if the tread depth remains adequate. Finally, given the absence of any documented advisory history, it would be prudent to commission an independent pre-purchase inspection from a Mercedes-Benz specialist or a qualified independent garage, as the clean MOT paper trail does not preclude developing wear items that simply have not yet been formally tested. Establishing the full service history and verifying the circumstances behind the unrecorded 2026 failure will be essential to confirming the true mechanical condition of this unusually low-mileage example.