1991 Vauxhall Cavalier 1.8L Petrol · H195 DUE

A thirty-five-year-old Cavalier with two emissions and headlamp-related failures on its MOT record presents a defined mechanical profile rather than an open-ended inspection question. Across the seven tests captured between 2007 and 2012, the car has passed on five of the seven recorded attempts, with the most recent outcome being a pass on 14 February 2012 free of any advisories or defects. The earlier failures, however, are worth weighing carefully: a 2007 test failed on excessive carbon monoxide content at the exhaust, and the 2010 retest cycle saw a failure for both headlamp aim settings being too low before a same-day pass was issued with advisories. The single advisory on file concerns a minor exhaust gas leak at the rear, which along with the emissions failure points to historically inconsistent exhaust and combustion behaviour rather than a one-off sensor reading. The mileage profile is unusually low for the vehicle's age, with 50,643 miles recorded over thirty-five years, equating to roughly 1,447 miles per year on average. The testing history itself is clustered between 2007 and 2012, with annual intervals, suggesting the car was in regular but modest use during that period; there is then a substantial gap with no recorded tests from 2012 to the present. A vehicle of this age with such light annual accumulation is more likely to have been used sparingly or stood for extended intervals, both of which can produce their own mechanical concerns even where the recorded wear is low. Standing periods encourage硬化 of rubber seals, drying of brake fluid, oxidation of brake disc surfaces, and degradation of exposed wiring, all of which fall beyond what the MOT history alone can evidence. A prospective buyer should focus the physical inspection on the areas the record highlights and on the typical weak points of a Cavalier of this generation. With a historic emissions failure for CO and an advisory for a rear exhaust leak, check the condition of the rear silencer and intermediate pipe joints for black soot deposits and listen for a ticking or hiss on the overrun, as well as ensuring the engine reaches operating temperature quickly and idles smoothly without hunting, which can point to a tired coolant temperature sensor or vacuum leak affecting mixture. With the 2010 headlamp aim failure in mind, verify that both beams sit at the correct height on a flat surface against a wall and that the headlamp reflector bowls are not heavily oxidised, as the standard units on this model are prone to dulling. On the test drive, pay particular attention to clonks or knocking from the front suspension over bumps, vague or wandering steering, and binding at the front brakes, all of which are common wear items on a Cavalier reaching this age irrespective of the low recorded mileage. Given the long testing gap since 2012, a buyer should treat the MOT record as historical context only and budget for a thorough pre-purchase inspection covering brake fluid age, tyre condition including sidewall cracking from age rather than tread depth, condition of the cooling system hoses and radiator, and any corrosion to the underbody, sill seams, and suspension subframe mounting points. Check for damp carpets or a musty smell inside the cabin indicating water ingress, as prolonged standing can allow perished door and boot seals to go unnoticed. Confirm that all warning lamps extinguish correctly on start-up, that the handbrake holds on a steep incline, and that there is no excessive play in the steering before committing, as the MOT history cannot speak to mechanical condition accumulated during the years the car was not presented for test.