2010 Mercedes-Benz Viano 3.0L Diesel · X8 JPO

The most recent MOT test on 2025-10-17 confirms the Viano remains roadworthy at 120,951 miles, with no defects recorded over the past two tests. While the October 2024 failure—just one mile before passing—suggests a narrow margin for error, the subsequent tests show a stable pattern of compliance. The lack of advisories or recurring issues in the last three passes indicates no obvious mechanical degradation, though the 2024 failure window hints at a component nearing its limit, possibly related to brakes or suspension, which are common failure points at this mileage. Mileage accumulation averages around 7,559 miles annually, a typical rate for a vehicle of this age. The gap between the 2023 and 2024 tests spans roughly 13 months, with minimal mileage gain (6,000 miles), suggesting the vehicle was either lightly used or stood idle during that period. The October 2024 failure, occurring just one mile before passing, may imply a component was operating at its threshold, though the subsequent tests show no further issues. No major mileage spikes or prolonged inactivity are evident, which could have accelerated wear. Given the lack of recorded defects, a buyer should prioritise a thorough inspection of the braking system, particularly rear calipers and discs, as the 2024 failure could indicate binding or uneven wear. Suspension components—coil springs, bushes, and shock absorbers—should be checked for deterioration, as these are prone to failure without visible external signs. Exhaust emissions should also be monitored, as older Mercedes-Benz models can develop leaks or catalytic converter issues over time. Finally, corrosion in wheel arches, sills, and underbody areas warrants attention, as rust can compromise structural integrity without immediate impact on MOT passability.