Hello 500E masters,
Sorry if this is covered elsewhere. I've searched the forum and interwebs and service manuals for some pictures or reference to answer my question, but after getting my car back and running smoothly after an ETA replacement and while-I'm-in-there top-end intake / ignition / injector refresh, my merciless 500E continues the march towards my destruction. I've been greeted with the sweet smell of glycol when I mat the fun pedal, and determined the source to be under the dash. Not entirely sure if it's the core (heat exchanger) itself, or if I disturbed one of the supply lines when I replaced the three-way feed hose from the back of the engine block. Doesn't matter, really... the dash is coming out.
I know a wise man will replace the vacuum pods while in there (and I intend to), but tell me is it necessary to open the A/C lines in order to remove the heater core? Does the box have to come out? I realize that smart money would be on doing the evaporator at the same time, but from what I've read here it seems like the majority of of the huge time estimates apart from getting the dash out are related to the evaporator R&R, and my A/C system apparently just had a lot of work done by the PO and blows beautifully cold (and is not leaking). I really need to get this car back into operational status as quickly as possible.
Just asking the question so I can get parts ordered for next weekend. Thanks!