1990 Mercedes 1114 6.0L Diesel · SXI 5322

The 1990 Mercedes 1114’s most recent MOT test on 29 June 2024—just over two years ago—confirms it passed without defects at 115,788 miles, though the preceding test in May 2023 failed without recorded issues. This abrupt failure without explanation suggests either a temporary administrative oversight or a critical fault that wasn’t logged, though the subsequent pass indicates no unresolved structural or safety-critical problems. The absence of advisories or recurring faults in the latest pass implies the vehicle has not experienced progressive wear in suspension, steering, or drivetrain components. However, the 2023 failure remains unexplained, which is unusual for a vehicle of this age and should prompt further investigation into whether the fault was intermittent or related to a specific component. The recorded mileage of 115,788 miles over approximately 36 years equates to around 3,216 miles annually, a figure significantly lower than average for a vehicle of this vintage. The gap between tests—just 11 months between failures—suggests either prolonged periods of non-use or inconsistent maintenance. The lack of mileage progression between the 2023 and 2024 tests (only 263 miles in 14 months) is particularly notable and may indicate the vehicle was stored or driven infrequently during that period. While low mileage can reduce wear on high-stress components, it also raises questions about fluid changes, rust prevention, and general upkeep during periods of inactivity. Given the sparse MOT record, a buyer should prioritise an independent inspection of the suspension system, particularly the rear axle and coil springs, which are common failure points in older Mercedes models. The 2023 failure without defects recorded could imply a hidden issue such as binding brakes, worn suspension bushes, or corrosion in critical areas. Corrosion around wheel arches, sills, and the subframe should be closely examined, as should the integrity of the exhaust system and fuel lines, which are prone to deterioration in a vehicle of this age. Tyre condition, despite the low mileage, warrants scrutiny—failing twice on tread depth in the past suggests either neglect or aggressive driving habits. Finally, verify that all fluid levels (brake, coolant, power steering) have been recently serviced, as stagnation can accelerate component failure in a vehicle that has not been regularly driven.