2021 Mercedes-Benz Sprinter 315 Progressive CDI 1.9L Diesel · HX71 WMM

The Sprinter's most recent MOT, conducted on 4 September 2025 at 294,732 miles, resulted in a pass, but the record reveals a maintenance trend that warrants caution rather than confidence. Two advisories were logged at that test: a nearside front tyre worn close to the legal limit and worn on its edge, plus slight play in the offside front steering linkage ball joint. These are not critical failures, yet their presence at such extreme mileage suggests the vehicle has been run hard with minimal preventative intervention. Comparing this to the August 2024 test at 232,818 miles, where advisories covered a damaged windscreen and slight play in both front lower suspension arm ball joints, the pattern is not resolving. Suspension and steering components have been flagged across consecutive years, and while none have escalated to outright failures, the recurrence points to cumulative wear that has not been addressed proactively. The mileage accumulation is striking. Between the August 2024 test and the September 2025 test, the vehicle covered approximately 61,914 miles in just over twelve months, a rate of roughly 5,160 miles per month. Over its five-year life, the annual average sits near 58,946 miles, which is exceptionally high even for a commercial Sprinter. This is not a lightly used van. Such relentless use accelerates wear on consumables like tyres, brake discs, and suspension bushes, and places sustained stress on drivetrain and structural components. The gap between tests is standard at roughly thirteen months, so there is no suspicious lapse in testing frequency, but the sheer volume of miles covered in that window underscores the intensity of its working life. A buyer should treat the front suspension and steering as the primary areas of concern. The repeated advisories for ball joint play, across both lower suspension arms in 2024 and the steering linkage in 2025, indicate that these components are operating beyond their optimal service life. Physical inspection should focus on checking for play in all front suspension ball joints, tie rod ends, and track rod ends, along with examining the condition of coil springs and damper tops for corrosion or cracking. The nearside front tyre wear pattern flagged in 2025 suggests possible alignment issues or worn suspension geometry, so a four-wheel alignment check is advisable before committing to purchase. Beyond the front end, the sheer mileage demands a thorough underbody inspection. At nearly 295,000 miles, structural rust on the chassis, outriggers, and spring mounting points is a realistic risk even on a relatively modern Sprinter. Exhaust system integrity, particularly the DPF and associated sensors, should be verified given the likelihood of sustained high-load diesel operation. Brake disc and pad condition, along with caliper operation, deserve close scrutiny as well. This van has clearly earned its miles through relentless commercial use. It remains roadworthy today, but the record suggests a history of reactive rather than preventative maintenance, and any buyer should budget for near-term suspension and steering renewal.