The electronic ignition lock control module (N73) must be version coded. The version coding is menu-driven, menu point 6 in the HHT.

Possible version coding

Version
Vehicle version	W202/S202/A208/C208/W210/S210
Engine management	M111/other
Left hand/right hand steering	LHS/RHS
Country version	Australia/Rest of the world
Rain sensor	Yes/No
Vehicle models	Production/Armored/Taxi with emergency alarm/Taxi without emergency alarm
Multi-function control module, special vehicles	Yes/No
Electric seat adjustment, driver's seat with memory	Yes/No
Electric seat adjustment, passenger seat with memory	Yes/No
One touch window opening feature actrivated	Yes/No