Crackers or rattles after the climate

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#1
Original: German · machine translated
Hey, guys!!!!
Have a cracker or rattle when I turn on the climate.

I was told in this forum that the rattle or claw is the pulley. Only you need to know that this is only rattle when the climate is on.(I'm not talking about ventilation now)=> ONLY IF THE CLIMATE IS AN!!!!
The rattle would have to be there all the time. Because the belt disc is permanently driven by the belt and the belt disc is also too.(right?)
...mhm....
INFO: the climate is getting cold. Although not so cold that the fingers freeze off, there is definitely a difference in feeling between climate and Econ at the same temperature (but the difference is not large)

So, now to the next wave point:.....
For other Audis with Kima, it is true that after the climate has been reflected in impulses in the engine compartment of the fans from the climate. I have noticed that I rarely hear a fan in my V8 HEAR. I'm probably overhearing him too.

THE IMPORTANT QUESTION!!!!! : can it be that if I turn on the climate the fan for the climate does not work???
Because the fan has to snap in a gear somewhere for the fan (or am I wrong?) otherwise it will not be put into operation. ...doesn't hit the gear at all and just grind through??? and this creates the clacking?????
Because so I could also explain to myself why no big temperature difference between Econ and climate is.
Because the climate can't get so cold because the fan doesn't work ....pfff well I'll wait and see what you think about it.......

Thanks already in advance for the recall!
PS:have 91ér 3.6L without preheating

SORRY, IF THE TEXT IS A KEY CHALLENGE AND BLACK!!!!
BUT A WONDER WHEN I HAVE BEEN SELECTED BY THINKING THE FEDERAL

Edited by René

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#2
Moin moin Rene,

das mit dem klackern zuerst: Das ist bei mir ganz genau so und soweit ich das bis jetzt verstanden habe soll das auch was mit der "Kupplung" zu tun. Die Scheibe dreht wohl so lange frei bis die Kupplung, durch das Betätigen der Klima, gesagt bekommt jetzt zu Kuppeln und die Welle mit nimmt. Soweit meine Theorie.

Nun zum Lüfter: Welchen meinst Du den vom Innenraum oder den im Motoraum auf der linken Seite? Wenn Du den im Motorraum meinst der ist mit ner Sicherung abgesichert die bedingt durch das alter den Geist aufgibt. Den vom Innenraum muß man nicht hören aber merken, denn er bläßt ganz gut wenn er auf Anschlag läuft.

Zum letzten: Soweit ich weiß erfolgt die Steuerung der Klimalüfter / Innenraumlüftern über Spannung und nicht über Zahnräder.
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