Heater woes ...

PaulBoy

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Location
Surrey UK
#1
My E39 [2000 SE 520 manual] has developed an annoying fault ...
The heater system appears to work fine and then on the lowest or second lowest setting suddenly starts to blow like Vesuvius!
I did a search here & can't find anyone reporting similar - any ideas?
TIA ... Paul ;)
 
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Location
Florida
#2
My AC is all F'd up. If i leave it on "auto" that's when I get problems. It'll run cold out the top and hot by the feet...when its 95 outside. That's not right.

To bypass, I manually select the dash airflow only...then it cools fine. As long as I don't use the Auto feature at all, it's fine.

As for why yours/mine is going crazy? I have no idea. I wish I knew but something tells me I'd have to replace the whole unit and I aint paying for that. I've checked the outside air temp sensor and I know it's not that. I wonder if it's a service bulleting computer update that need to be done. HAven't had a chance to dig into it.
 


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