Door seals keep out wind, rain, and road noise, while cockpit liners finish the interior face of the sills and lower body sides. When these components are in good condition the car feels tight and well-finished; when they are perished, split, or missing, the cabin becomes noticeably draughty and the interior looks neglected regardless of the condition of the seats or carpet. Door seals are available in the correct profiles for the MGB. Correct fitment matters, a seal that does not sit properly against the door shut face will not compress correctly when the door closes and will allow water and wind ingress however new it is.
The seal profile changed between production periods and between Roadster and GT, so confirming the correct type for the car is important when ordering. Cockpit liners cover the inner sill area and lower body sides within the cabin, providing a finished appearance and protecting the occupants from contact with bare metalwork. They are available in the correct material and colour for each interior trim specification. Fitting is straightforward but benefits from patience, the liners must be trimmed carefully around the seat belt mountings, pedal box area, and any other protrusions to achieve a clean result.