CONNECTING DEVICE FOR A STEERING WHEEL OF A MOTOR VEHICLE, MOTOR VEHICLE AND METHOD FOR MOUNTING A STEERING WHEEL ON A STEERING COLUMN

The invention relates to a connecting device (1) for transmitting electrical signals to and/or from a steering wheel (23) of a motor vehicle, having a positionally fixed component (2) for positionally fixed installation in the motor vehicle, having a hub part (3) which is rotatably mounted on the positionally fixed component (2) and which serves for connection to the steering wheel (23), and having a locking element (6) which is movably mounted on a bearing part (3) and which, during the connection of the hub part (3) to the steering wheel (23), is movable counter to a spring force of a spring element (14) from an installation position, in which a blocking bar (9) of the locking element (6) blocks the rotation of the hub part (3) relative to the positionally fixed component (2), into an operating position, in which the rotation of the hub part (3) is enabled, wherein the connecting device (1) has a plunger (18) which is mounted movably relative to the locking element (6) and which, during the connection of the hub part (3) to the steering wheel (23), moves the locking element (6) into the operating position, in which the locking element (6) is held spaced apart from the steering wheel (23) by the plunger (18).