Re: [diesel_mercedes] Heater box?

 

I agree with Tom here.  What, exactly, is the climate control system doing/not doing?  Too much heat? No heat?  No A/C?  Intermittent?

"Locked up heater box" is a term and condition I've never heard of nor encountered.  (Only been working on cars for 35-years, though....)  What does this mean, and how was this diagnosis determined?

Generally, one only needs to access the heater core if it's leaking or has low or no heat output (because it's plugged up for some reason).

Mark in Lakewood, CO
From: audiolaw@aol.com
To: "diesel mercedes" <diesel_mercedes@yahoogroups.com>
Sent: Wednesday, June 29, 2011 9:23:06 PM
Subject: Re: [diesel_mercedes] Heater box?

 

    What does "locked up heater box" mean? 
 
    Climate control systems can be problematic.  But the controls run duct and radiator systems that are pretty much like any car, I think.  And the systems in a 190D should be essentially identical to any gasser in the same body class. 
 
    "Locked up" has that 'stuck door' kind of imagery, that so often refers to a non-working vacuum control valve, or a stuck hinge.  So it may be that instead of looking at a big, expensive "assembly" you might be looking at a fix or replacement of a single part. 
 
    This is the kind of stuff that I always learn watching Nate work on vehicles. 
 
Tom
 
 
In a message dated 6/29/2011 7:01:10 P.M. Pacific Daylight Time, jdblackwell2@gmail.com writes:
 

I recently added an '86 190D 5 speed to my fleet and while it looks and runs good, it has some climate control issues apparently due to a locked up heater box. The price for a new one is obscenely high and getting one from a PAP seems unlikely in terms of finding one locally or getting one removed and shipped. Any insights?

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