1. A system for the diagnosis of a component of a motor vehicle, the system comprising: a server configured to separately transmit at least one test sequence for diagnosing the component, and at least one execution parameter allocated to the test sequence, wherein the at least one execution parameter defines a performance during the test sequence, a diagnostic device configured to receive and pre-execute the at least one test sequence, receive the at least one execution parameter separately from and subsequent to the receipt of the at least one test sequence, and execute, using a script execution device, the received at least one test sequence according to the execution parameter.