1978 MG B 1.8L Petrol · CDF 457T

The most recent MOT conducted in September 2025 resulted in a pass, following a failure for a non-functional offside headlamp and an ineffective nearside windscreen wiper. While the latest result is positive, the overall maintenance trend reveals a history of recurring advisories that suggest a need for vigilant mechanical oversight. Specifically, the vehicle has a documented history of oil leaks and wheel bearing play, indicating that while the car is currently roadworthy, it has experienced persistent minor defects that require attention to prevent escalation into major mechanical failures. With a recorded mileage of 64,282 over nearly 48 years, this MG B has been driven at an exceptionally low rate of approximately 1,339 miles per annum. While this low mileage implies reduced wear on the internal engine components and drivetrain, it also suggests the vehicle may have spent significant periods stationary. For a classic car of this age, infrequent use can be as detrimental as high mileage, often leading to the degradation of rubber seals, the hardening of suspension bushes, and the potential for internal corrosion within fluid-carrying systems due to a lack of regular circulation. During a physical inspection and test drive, particular attention must be paid to the offside rear wheel bearing, which appeared as a recurring advisory for several years. Listen for any rhythmic humming, grinding, or vibration coming from the rear of the car, especially at varying speeds, as this indicates play in the bearing. Furthermore, the history of engine and gearbox oil leaks necessitates a thorough check of the underside for fresh seepage and the presence of heavy oil staining on the sump and transmission casing. You should also inspect the structural integrity of the chassis and sills, given the previous advisories regarding underbody and structural corrosion, to ensure that any rot is merely superficial and not compromising the vehicle's safety. Due to the low annual mileage, you must perform a detailed check of all perishable components. Inspect the tyres for sidewall cracking or perishing, which occurs due to age rather than tread wear, and check the brake discs for heavy corrosion or signs of binding calipers. It is also advisable to verify the service history to ensure that fluids such as brake fluid, coolant, and oil have been changed based on time intervals rather than just mileage, as moisture absorption in brake fluid and chemical breakdown in oil are common issues in low-use classics. Finally, examine all rubber hoses, fuel lines, and suspension bushes for signs of cracking or hardening to avoid sudden failures during more spirited driving.