I only can answer this question in english ...
But the motronic is doing a "checksum" test when it boots.
So if you directly start the engine, then it doesn't do a checksum test...
Buttt......... a good programmer can solve this problem by adjust the cheksum (sum of bytes in eprom)
Arno gave me also a chip for my motronic 2.5 wich also runs with the motronic light on

but i bought an eprom programmer and solved it myself now
So Arno... maybe i can help you ???????????