climate control , a/c
 

another issue again, so i went to my garage to diagnose a/c issue, he told me there no leak, but the main reason why i dont get cold air is because my climate control only send 4volt to the compressor and it doesnt get enought electricity to work... anyone have a DIY solution?? beside replacing this 1000$ shit

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he also told me, my aux fan is dead, is it a repair ASAP or no ?

Only if you want AC.

Mmm , i believe i will not get a/c at red light.. And thats it? Or it can make damage to oher part?

Because he told me i need to replace climate control which is around 1k...

Does your a/c work sometimes or never? Are you having any other electrical problems?

Disconnect the aux fan, start the car, and see if the compressor ever turns on. On e39's a shorted aux fan can cause IHKA problems. A used IHKA (if you still need one) looks to be around $250 on ebay. For e39's, if you buy the same one (same buttons) it doesn't have to be coded to the car ($$$). Not sure about that for e53's so do your own research.

"...replace climate control..." is a VERY broad description.

I would suggest that it is not possible to advise based on this info.

a/c never work... its dead

is it possible that the ecu send a sginal to stop a/c when it detect a broken aux fan ?