Question about 1998 Audi A4

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My Ac is always going off within a short time

My AC is always going of within a short time when the temperature gets to -50. Also if i start it and driver for some distance and try putting on the AC, it doesn't come on. One of my catalyst has been removed. And am using it in Africa.What is the impact of this catalyst.

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Hi charles,

i don't think the catalyst has something to do with the ac. you mentioned you are in africa and i am assuming it is positive 50 degrees celcius and not negative 50 degrees celcius as stated in your post. i could see a dash before the number 50.

anyway, there is a pressure switch that would de-activate your compressor once the high pressure reaches an abnormal level. and this level could easily be reached at 50 degrees celcius ambient temperature. so it seems there is nothing you can do about it.

i could suggest that you put an adittional fan if you still don't have, to cool the condenser further.
or just try to cool the condenser, while parked, turn the ac on, and doze the condenser with water and observe if the ac would still cut off. if it does not, then the problem is your ambient temperature.

tnx 4 using fixya,


Posted on Oct 01, 2008


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