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Read and comply with notes on protection against electrostatic damage (ESD protection).
Necessary preliminary tasks:
Remove trim from rear apron
Remove right luggage compartment trim panel
Partially detach insulating mat.
Release screws (1) and pull back device holder (2).
Unlock plug connections (1) and disconnect.
Unlock catch (2) in direction of arrow and remove control unit (3) upwards from device carrier (4).
Carry out programming/coding.