Thanks for the reply. No, not Rapide. There was technically nothing wrong with the crankshaft seal; it was still performing but it was old, as in original-when-the-car-was-bought old. He didn't insist on it. He just advised that since they're disassembling to replace the engine support and clutch disk, might as well replace the seal, rather than wait til it breaks than disassemble everything again just for the seal. In fairness, they showed me the old seal and it was not pliant anymore. Is it possible they put in a wrong/ill-fitting seal even if it's original? Is a leak traceable to know it's a seal problem or is it too inside the many parts to know definitely?