Vehicle with an adjustable and/or calibratable sensor, the sensor and the method for monitoring the sensor

Motor vehicle (1) comprising at least one sensor (2) to be adjusted and/or calibrated, which is mounted in a fixed installation position within the motor vehicle (1), wherein a detection device (5) for detecting a temporary removal of the sensor (2) from the installation position and a control device (6) that initiates at least one measure upon detecting a temporary removal of the sensor (2) from the installation position are provided.