[kuno24]

OMSA- Ohne motor start automatik- don't write bullshit
Write to FA 536- this must work, attached picture from AOS portal .
Then code IHKA, CAS and CIC

Also attached Webasto retrofit manual for this car. In this manual is not suggested to exchange IHKA.

Other way, if you don't have basic knowledge for using Esys, use Ista. Or ask remotely help via Teamviewer. You must have installed also Ista and INPA for F-series and working.

   

F25 Webasto retrofit.txt
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Why you use Webasto Thermo Test for diagnose? Is the installed Webasto BMW original brand or Webasto brand? If the last, then it may be not suitable to IHKA LIN-bus. You must know what to do.