A device and a method for reading out adaptation values of self-adapting
functions from a motor vehicle control unit to an external readout unit
are provided. The device consists of a motor vehicle control unit, an
external readout unit, and a communication interface between the external
readout unit and the motor vehicle control unit, the motor vehicle
control unit including a nonvolatile memory for storing adapted
parameters or parameter sets of the self-adapting functions. The motor
vehicle control unit additionally includes a receiver for receiving at
least one test value set transmitted by the external readout unit, a
calculation unit for calculating at least one adaptation value as a
function of the test value set and the adapted parameters or parameter
sets, and a transmitter for transmitting the at least one calculated
adaptation value to the external readout unit.