2018 Mercedes-Benz E 1.9L Diesel · RT08 JAT

A clean and largely uneventful MOT history defines this 2018 Mercedes-Benz E-Class at first glance, with the most recent test on 2 July 2026 returning a pass with no defects recorded and the prior test on 22 July 2025 producing an identical result. Across seven recorded tests since June 2021, only one outright failure is documented, and that was driven by two specific items rather than systemic deterioration: a dangerous nearside front tyre with exposed cords recorded on 16 July 2025, accompanied by an advisory for an offside front tyre worn close to the legal limit. The earlier failure of 22 June 2021 was similarly narrow in scope, limited to both front windscreen washer jets providing insufficient fluid and a minor windscreen damage note. A repeat minor windscreen damage entry on 27 July 2022 and a deteriorated front number plate advisory on the same date complete the recorded defect picture. The overall pattern therefore suggests a vehicle whose roadworthiness compliance has been stable rather than deteriorating, with the recent two-year run of clean passes following resolution of the tyre issue. With 34,808 miles accumulated over roughly eight years, this E-Class records an annual mileage of around 4,351 miles, which is notably low for the vehicle's age and segment. There are no significant gaps between annual tests, indicating the car has been presented consistently rather than left dormant for extended periods, though the modest annual accumulation still implies a higher proportion of short urban journeys and standing time relative to motorway use. From a mechanical standpoint, low annual mileage of this nature typically allows longer life from major drivetrain components but can accelerate deterioration of items affected by infrequent use, including brake discs corroding on the surface, brake caliper sliders seizing, coolant and brake fluid ageing in situ, and the 12V battery suffering reduced capacity from shallow discharge cycles. Tyre wear in particular tends to be uneven on lightly used vehicles, with shoulders and inner edges degrading faster than the centre tread. On a physical inspection, particular attention should be directed to the front brake discs and calipers, as any surface corrosion, lipping, or binding should be evaluated by pulling each front wheel and checking for smooth rotation and even pad contact. The front tyres should be examined closely for uneven shoulder wear, inner-edge deterioration, and any signs of sidewall cracking or perishing consistent with age rather than mileage, given that tyres fitted to low-mileage vehicles often require replacement on age rather than tread depth. The windscreen should be inspected for the noted offside damage to confirm it has not extended or migrated into the driver's primary sightline, and the washer system should be verified as functioning on both sides with adequate jet reach, as the 2021 failure indicates this was previously a weak spot. A short drive over uneven surfaces should be used to listen for any suspension clonks or knocks from the front end, as a low-mileage Mercedes of this age may still present with degraded control arm bushes or anti-roll bar links that have not yet been flagged at test but warrant direct appraisal. Under the bonnet, the engine and ancillaries should be checked for oil misting or residue around the cam covers, oil filter housing, and turbo plumbing if applicable, as well as coolant level and condition, given the low annual mileage can lead to concentration of corrosion inhibitors. The coolant expansion tank, radiator, and pipework should be visually examined for staining or crusting, while the power steering reservoir and lines should be checked for any seepage. Finally, the 12V battery should be tested for its resting voltage and load capacity, as prolonged standing periods and short journeys will have placed it through repeated shallow cycles, and a weak battery can mask or mimic electronic control unit faults on this model. Taken with the otherwise compliant MOT record, the principal mechanical risks for a prospective buyer centre on age-related degradation of consumables and standing-related wear rather than any pattern of structural or systemic failure.