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Old 01-31-2011, 02:57 AM
tinypanzer tinypanzer is offline
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Join Date: Jul 2008
Posts: 1,236
Unhappy W126 Heater Core Replacement - HELP!

Hello everyone,

I've been breaking my back all day taking apart the 300SE for a heater core swap. I've gotten the dash out, the steering wheel off, and I have even opened the top of the heater box and can see the heater core.

How in the hell do I swap that core? It looks like I have to take the whole heater box out. If so, how does one do that? All the write-ups I've seen leave off at this point. Do I have to discharge the A/C system and pull the evap too?

I'm stuck and need help.


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition
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