[bmw] Re: [SIG@M535i] E28 Heater Core ??

["Donald McMahon" <McMahonDon@xxxxxxxxxxxx>]

Chris

Thanks for the advice. Is Tim M still on this list? 

Part of my issue is keeping my daily driver on the road.

I was thinking I would try to purchase a used core and
a new hoses to and from the interior of the firewall. I've
heard horror stories of a pressure tested core being
put in then leaking.

I have found this response Off http://www.MyE28.com:
>craigb93@domain.elided September 06, 2003 at 23:58:42
>Bentley's just gives up. It says they don't cover replacement 
>because it's too involved. But then they describe as how the 
>A/C evap & case must be removed to access the heater case
>& core. This means the whole center console & all the 
>refrigerant must be removed.

Perhaps Tim M would be able to tell these guys where they went 
wrong.   (-:

Don

>>> grafff1@domain.elided 12/3/2003 9:32:53 PM >>>
You basically have to take out the entire dash to get to the heater
core. It's
not that difficult, just that it takes a long time. And you're being
more of
an accountant than anything else (making sure you remember how many and
which
screws go with what piece).

You DO NOT have to remove the AC evaporator (thanks to Tim M who did
this
job). You can finagle the heater core by removing the top half of the
heater
box out. The AC evaporator has enough play to be able to remove the
heater
core out.

Plan for a full days work (morning, afternoon, and evening). 

-Chris
> Well I've been dealing with a foggy windshield for the last several 
> years in my '85 535i. This morning the situation got a little worse 

> when steam began emerging from the defogging (humph) vents.
> 
> Checking through several FAQs I have not found any information 
> on digging through an E28 console to get at the heater core. Does 
> anybody have a description of this process?
> 
> Most of the steam seems to be coming up on the passenger side.
> Does anyone know what I'm going to find when this is opened up?
> Is it most likely that the heater core needs to be replaced or could
> it just be an interior hose?
> 
> Don McMahon, Okemos, MI
> '85 535i, '86 535i, '75 3.0Si
> (I need a new car)
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