Abstract: The invention relates to a locking aid drive for a motor vehicle lock, with a drive housing, the locking aid drive being coupleable in terms of drive to the motor vehicle lock via a Bowden cable with Bowden cable core and Bowden cable sheath, and a driving motor with a downstream feed mechanism for producing driving movements and a coupling element for transferring the driving movements being provided. It is proposed that the coupling element can be brought, in particular by means of the drive motor, into at least one coupling position in which said coupling element is accessible from the outside for the production of a coupling of the Bowden cable to the coupling element, and otherwise is inaccessible from the outside for the production of a coupling of the Bowden cable to the coupling element.

Abstract: The disclosure relates to an auxiliary locking drive for a motor vehicle lock, wherein the auxiliary locking drive, in the fitted state, provides an auxiliary locking drive train which has an auxiliary locking drive motor and a planetary gearing which is connected downstream of the auxiliary locking drive motor and has the following gearing elements: a sun gear, a planet gear carrier and a ring gear, wherein a first gearing element of the planetary gearing is coupled or is couplable to the auxiliary locking drive motor and a second gearing element of the planetary gearing is coupled or is couplable to the lock latch, wherein a switchable fixing device is provided, with which, for producing and releasing a drive coupling between the first gearing element and the second gearing element, the in each case third gearing element of the planetary gearing is fixable and releasable.

Abstract: The invention relates to a locking aid drive for a motor vehicle lock, with a drive housing, the locking aid drive being coupleable in terms of drive to the motor vehicle lock via a Bowden cable with Bowden cable core and Bowden cable sheath, and a driving motor with a downstream feed mechanism for producing driving movements and a coupling element for transferring the driving movements being provided. It is proposed that the coupling element can be brought, in particular by means of the drive motor, into at least one coupling position in which said coupling element is accessible from the outside for the production of a coupling of the Bowden cable to the coupling element, and otherwise is inaccessible from the outside for the production of a coupling of the Bowden cable to the coupling element.

Abstract: An auxiliary locking drive for a motor vehicle lock having its own drive housing and being located separate from the vehicle lock in the installed state. The auxiliary locking drive can be coupled to the vehicle lock by way of a transmission that transmits a linear driving motion produced by a drive motor to the vehicle lock for transferring the vehicle lock from the half-locked state into the main locked state by the driving motion. The auxiliary locking drive, for producing the linear driving motion, has a feed gear mechanism which is connected downstream of the drive motor and is made as a spindle-spindle nut gearing with a spindle and a spindle nut.

Abstract: An auxiliary locking drive for a motor vehicle lock having its own drive housing and being located separate from the vehicle lock in the installed state. The auxiliary locking drive can be coupled to the vehicle lock by way of a transmission that transmits a linear driving motion produced by a drive motor to the vehicle lock for transferring the vehicle lock from the half-locked state into the main locked state by the driving motion. The auxiliary locking drive, for producing the linear driving motion, has a feed gear mechanism which is connected downstream of the drive motor and is made as a spindle-spindle nut gearing with a spindle and a spindle nut.