@Yoha thx. when you have no Problems than iam very confused

@Yoha jea the problem is not that the wiper not work - they are working. the first export is ok and work but all other export after this (and only when i import/ merge a part) work not. than zmod say he dont know door_hatch. i import the working car move the wiper its work after expert. and what i must tell you what i forget is with import new parts i mean file like .obj or .3ds.

@ImNotMentaL I let make update each every start. i think thats not the Problem. I mean its work only this one Problem.

@Yoha I hope you understand me right. My Problem are not to create the Wiper my Problem are the export after import or merge from other Parts. After this imports Zmod not knowing the door_hatch and bring the Error. I must first import and merge the Files, after this import the working Car (with wiper) move the import and merged Parts to the working imported Car end Export all now. Than it is working. But without the Import of the working Car, when i move the new Parts to the Car what i saved as Zmodfile it will not work. I hope you know what i mean. Here the Pic of the Hirarchie.

@Yoha Good Tutorial Thanks but one Problem. I have bring one Time the Wiper to work. But when i import new Parts on Zmod or merge parts from a other Zmodfile than the export becom this Error:

Unknown object name "door_hatch_l". Using random ID: it might not work correctly in game script. Unknown object name "door_hatch_r". Using random ID: it might not work correctly in game script.
Exported all lods......

I have saved the working Car before i import the new Parts and the last Way before i export the Car is, that i import the working Car and move all the edit and new Parts to the working Car. What is wrong or why come the Error after import from Stuff? I have update my Zmod, use the last Script and have at no other Mods at the Game. I hope you have a Idea or Answer for this Problem.

@Yoha hi iam now sure it is an export problem. i have load your marbella and test ingame it work. i have renamed as police, add it and it work. so i import the marbella to zmod move a lightbar to the car and export it. and now the curios. when i spawn the car the wiper DONT work. only swinging. the same is mit your satria file. when i merge this to my the same. not working only swinging. So iam now very confused what i can do that it work.

@Yoha i not understand this. your car (the railant) work but my work not. When i export the Car with your Wipers (and with my wipers the same) i become this Error: Unknown object name "door_hatch_l". Using random ID: it might not work correctly in game script. Unknown object name "door_hatch_r". Using random ID: it might not work correctly in game script.
Exported all lods...... What i must do all that it work corectly?

@Yoha i think the problem is the script or the path from the script. i have merged for test your wipers and with this i have the same problem. only swinging wit fast driving but not work.

@Yoha i have a DVD version of the Game. yes i have named this. i have copyed both front doors and use this dummys and how i sayed the wipers ar swinging bit nort working with the script. and i have the latest script load here.

@Yoha Hi i have create the wipers how your Video and the Text but ingame is it not working. the Wipers swing with the Car wen i drive fast left or right but she not wipe. The scripts are complet with Folder on Mainfolder from GTA5. I have test it with only the DLL and ini too but nothing. Any Chance the become a unlockt file with only the working wipers so that i can look and und make it on my Mods? Have i install the Sript right? or Must the Car i a specific Path? I hope you can help me. Thanks