Method for producing a spindle drive for an adjusting element of a motor vehicle

A method for producing a spindle drive for an adjustable element of a motor vehicle, wherein the spindle drive has, along a geometrical spindle drive axis, a substantially tubular spindle drive housing and two connections for diverting driving movements, wherein at least one connection of the spindle drive has a connection head which is furthermore connected to the spindle drive via a connection neck which is thinner than the connection head, wherein

• a sealing cap for the spindle drive housing is provided with a sealing opening, in that, in order to install the sealing cap, in an installation step the sealing cap is pulled with the sealing opening thereof over the connection head of a connection of the spindle drive, and in that, in the process, the peripheral region of the sealing opening is elastically deformed by the engagement with the connection head and is therefore widened, and in that the peripheral region of the sealing opening is subsequently deformed back elastically in frictionally sealing engagement with the connection neck.