2022 Mercedes-Benz Sprinter 315 Progressive CDI 1.9L Diesel · WN72 HTJ

The latest MOT test for this 2022 Mercedes-Benz Sprinter 315 Progressive CDI recorded a failure on 2025-10-28, with two major defects identified: a non-functional near-side dipped beam headlamp and an ineffective near-side windscreen wiper system. This contrasts sharply with the clean pass on 2025-10-29, suggesting either a transient electrical issue or a temporary malfunction in the wiper mechanism, which could have been resolved during the intervening period. However, the presence of a near-side rear tyre defect—specifically a cut exceeding the legal ply or cord penetration limit—indicates a persistent, critical failure that must be addressed immediately. While the overall maintenance trend appears to be stable between tests, the failure highlights a need for proactive component inspection, particularly in the lighting and tyre systems, to prevent recurring or escalating issues. The recorded mileage of 41,975 miles for a vehicle aged four years represents an average annual usage of approximately 10,494 miles, which is within the expected range for a Sprinter of this class, particularly if the vehicle has been used for commercial or operational purposes. However, the lack of a recent MOT test prior to the failure suggests there may have been periods of inactivity or lower mileage accumulation, potentially leading to standing-related wear. For example, prolonged idling or stationary use can accelerate corrosion in brake systems, particularly on discs and calipers, or cause fluid degradation in hydraulic components. Additionally, if the vehicle has been used in harsh conditions—such as dusty environments or frequent short trips—the wear on suspension bushes, seals, and tyres may be more pronounced than typical. Given the recent MOT failure, the buyer should prioritise a thorough inspection of the near-side rear tyre, which must be replaced immediately to comply with roadworthiness standards and prevent further damage to the tyre’s structure. During a test drive, listen for signs of uneven tyre wear or excessive vibration, which could indicate alignment or suspension issues contributing to the cut. The non-functional near-side dipped beam headlamp should be repaired or replaced by a qualified electrician to restore compliance with lighting regulations; symptoms of a faulty bulb or wiring include intermittent illumination or a complete absence of light when switched on. For the windscreen wiper system, check for smooth operation and effective clearing of the windscreen, as well as any signs of fluid leakage or mechanical binding, which may require servicing or replacement of the wiper arms or blades. Beyond the immediate defects, the buyer should conduct a comprehensive physical inspection of the vehicle’s mechanical and electrical systems. Focus on the brake system, particularly the near-side components, as standing can cause corrosion or binding in calipers and discs, leading to reduced braking performance or uneven wear. Inspect the 12V battery and associated wiring for signs of corrosion or damage, especially if the vehicle has been stationary for extended periods. Additionally, check the tyre sidewalls for signs of age-related perishing or cracking, which can compromise structural integrity, particularly if the vehicle has been in storage for prolonged periods. For fluid systems, such as the cooling, transmission, and brake fluids, consider a calendar-based check—even with the current mileage—due to the risk of degradation over time, especially if the vehicle has not been serviced recently. Finally, verify that the service book is up to date, as the Sprinter’s CDI engine and drivetrain require scheduled maintenance, including oil changes and filter replacements, to mitigate wear from the accumulated mileage.