2018 KIA Optima 1.7L Diesel · SD18 AVB

Over the recorded MOT history this 2018 Kia Optima presents a clean and largely uneventful roadworthiness profile, with the most recent test on 22 January 2026 returning a pass and no advisories or defects recorded, mirroring the identical clean pass logged exactly twelve months earlier. Across seven tests spanning 2021 through 2026 the vehicle has produced only one outright failure, which occurred on 21 April 2021 and was caused solely by both headlamps being aimed too high, a straightforward adjustment issue rather than any structural, braking, or suspension failure. The handful of advisories captured in the record are minor and isolated, comprising a low coolant level in January 2024, front tyres worn down to 2 mm in December 2022, and an offside rear nail in the tyre alongside inner-edge wear noted in April 2021. There are no recurring advisories on the same components, no corrosion flags, no brake or suspension defects, and no exhaust or emissions issues, suggesting a stable mechanical trajectory rather than a worsening pattern. With 80,925 miles recorded over approximately eight years, the vehicle is accumulating around 10,100 miles per year, a rate that sits comfortably within the typical band for a car of this age and is neither notably low nor excessively high. There are no extended gaps in the MOT record and no obvious jumps in mileage between consecutive tests, indicating the car has been in continuous use rather than laid up for long periods. This steady, moderate annual usage is mechanically favourable for the Optima, as it tends to keep consumables, brake components, and suspension wear progressing at predictable rates rather than suffering from either the dry-joint and oil-seal issues associated with very low-mileage cars or the accelerated component wear associated with high-mileage motorway use. Given the average mileage, mid-life inspection of wear items such as discs, pads, and tyre wear patterns would be the natural mechanical priority at this stage. The single failure in 2021 for headlamp aim warrants a brief check on a viewing, although it was rectified at the same test. A headlamp aim that has drifted high again would show up as oncoming drivers flashing or as the beams striking the same test screen pattern that originally caused the fail, so confirming the aim with a wall test or by asking for the adjuster mechanism to be demonstrated is worthwhile. The 2024 advisory for low coolant should prompt a thorough inspection for any persistent leak or seepage from the radiator, coolant hoses, water pump, or the area around the thermostat housing, as a one-off low level can simply be a top-up, but recurring loss would suggest an underlying issue that may have developed since. On a test drive, keep an eye on the temperature gauge for any upward creep under load or when idling, and smell for any sweet coolant odour around the engine bay. The tyre-related advisories from 2021 and 2022, including the inner-edge wear on the offside rear, point to alignment geometry worth verifying. Although these advisories were not flagged on subsequent tests, inner-edge wear can sometimes indicate worn rear suspension bushes, trailing arm bushes, or slight camber misalignment that may not be immediately obvious on a casual look. On a test drive, listen for any knocking or clonking from the rear suspension over speed bumps or uneven road surfaces, and feel for any vagueness or wandering through the steering, particularly on motorway cruising. Brake pedal feel should be firm without excessive travel or judder under braking, and the vehicle should pull neither to the left nor to the right. With the full MOT history documented and no outstanding advisories from the January 2026 test, the recorded evidence indicates the Optima has maintained a consistent standard of roadworthiness through to its current mileage, though a hands-on inspection of the items previously flagged remains the prudent next step.