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Old 12-28-2012, 04:33 PM
the imitator the imitator is offline
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Location: Pacific NorthWest
Join Date: Dec 2012
Posts: 5
Mein Auto: 91' e34 535i
e34 535i Not getting any heat

Hello, thanks in advance for those who help.

I currently receive very little heat at idle, perhaps barely 60 degrees in the cabin while outside is 40 degrees or under.

Heres the info:
Heater valves seem to be working, I can twist the nobs from cold to full heat and hear and th valves pop open and close.

I do wake up in the morning to my windows being steamed up, but no smell of coolant, that or any sort of greasy condensation, its just water. This past summer while cleaning my car I did experience a slight water leak in my back window, but with that said I live in the Northwest and its currently the rainy season and the rear window shows no signs of leaking, but that obviously doesn't mean moisture can still get in, or out?

I did a micro filter change, which was quick and easy, but I did encounter lots of moisture in there as well, not physically on the filter but within the dash.

This all is pointing towards a bad heater core I feel..

The auxiliary pump could be corn, but I wont know til I get a meter to see if its doing anything. But being that most cars never used Aux pumps to begin with and have no problem heating up the cabin, this all has me thinking.

Thanks again.
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