1977 MG Midget 1.5L Petrol · TTB 139S

The latest DVSA MOT test for the 1977 MG Midget was conducted on 2026-07-07 and resulted in a pass, though it included a single advisory regarding the underside of the vehicle being covered in underseal. This advisory, while not failing the vehicle, suggests a potential area of concern that should be addressed promptly. The absence of any recorded failures or repeated advisories over the short period since the last test indicates a stable maintenance trend thus far. Given the vehicle’s age and the minimal intervening MOT history, there is no evidence of a deteriorating mechanical condition or a pattern of neglect. However, the underseal advisory merits closer inspection to determine whether it is a cosmetic issue or indicative of underlying corrosion protection failure, which could lead to structural or component damage if left unchecked. The recorded mileage of 64,758 miles for a vehicle that is approximately 49 years old represents a remarkably low annual usage rate of around 1,322 miles per year. Such low mileage is atypical for a vehicle of this vintage, especially one that has not been in regular service, and may reflect periods of prolonged inactivity or storage. While low mileage can sometimes mitigate wear on consumables like brake pads and tyres, it also raises concerns about potential issues arising from standing conditions. Over extended periods without movement, components such as brake discs can corrode or bind within the calipers, suspension bushes may stiffen or dry out, and fluids like brake fluid and differential oil can degrade due to lack of circulation. Additionally, standing in damp or corrosive environments accelerates rust formation on metal surfaces, including the chassis, exhaust components, and undercarriage. To ensure the MG Midget remains roadworthy and avoids costly repairs, prospective buyers should conduct a thorough physical inspection. First and foremost, examine the tyres for signs of sidewall cracking or perishing, which can weaken their structural integrity over time, even at low mileage. Check the brake system for any corrosion on the discs, particularly around the brake pads and caliper bolts, and listen for unusual grinding or binding when the brakes are applied—this could indicate seized components. Inspect the suspension for excessive play or clunking noises when driving over bumps, which may signal worn suspension bushes or broken coil springs. The underseal advisory prompts a detailed undercarriage check for any signs of rust or fluid leaks, especially around the engine bay, exhaust system, and wheel arches, where moisture can accumulate. The engine oil, differential oil, and transmission fluid should be assessed for their condition, with particular attention to any signs of sludge, contamination, or excessive wear particles. Given the vehicle’s age, the engine’s coolant system should also be inspected for leaks or corrosion, and the battery should be tested for voltage output and cleanness of terminals to ensure it remains operational without premature failure. Finally, since the vehicle has not been driven regularly, consider a professional inspection of the drivetrain, including the clutch and gearbox, to confirm there are no hidden issues from prolonged standing. If the underseal is found to be inadequate, a replacement should be prioritised to prevent corrosion-related failures, which could compromise the vehicle’s structural integrity and safety. A service history check, if available, would also provide valuable insight into past maintenance, though the lack of recorded MOT failures suggests that the vehicle has been generally well-maintained despite its low usage profile.