My 1991 350SD has a bad evaporator. I got the heater box out -- what fun that was!!
According to the manual, I am supposed to remove the heater core before I remove the evaporator.
I took the heater core cover off and took the support for the three pipes off. There is supposed to be a retaining bracket inside the area where the heater core is and I am supposed to unscrew it and remove the heater core.
However, I have nothing that is screwed in. What I have is a shaft that goes through the opening that is attached to a vacuum element that rotates the shaft.
The heater core will not come out because the bottom pipe hits the shaft when I pull it up. It seems like the shaft has to be removed.
Has anyone done this and can tell me how to get the core out?

No, Really...If you've gotten the Heater box cover off... You're much more patient than I'll be in 6 or 7 re-incarnations. 'Job Well Done!

I Don't have any access to the W126 Chassis HVAC manual.
(Or ANY W126 Manuals)

I believe you're talking about one of the operating rods for the Vacuum Pods ?
[Gently, remove it from your work path]

Just for fun,inspect the engine compartment side of the FireWall(s?) to make
sure one of the Gnomes in Stuttgart didn't SECURE the rod on the other side
with a nut.

All the MB Vacuum Pods have got to be the same,same.
(Germans hate Non-Conformity,and standardization is kinda a religion over there)
they are kinda a Twist lock release design.

These are a couple of GSXR's AND SIXTO's Vacuum pod Tutorials for W124 they should be
generic enough to help you:

87 300D center vent pod replacement

87 300D recirc and defrost pod replacement

And

W124 climate control vacuum pod replacement

http://www.w124performance.com/images/W124_dash/

__________________
'84 300SD sold
124.128

I ended up getting my evaporator core replaced. What a PAIN!!

I had to pretty much take the whole airbox completley apart to get to the evaorator core. Now I need to get the airbox back in the car and get the cooling system filled again so I can get it to the mechanic to fill it up with freon and see if it will hold a charge now.

It better after all that work. If it does, then I'll get it all back together. I saw a post for someone that got the dash off in 2 hours. for me it is more like a day....

Save the charge, see if it will hold a good vacuum, if so, then freon.

__________________
CC: NSA

All things are burning, know this and be released.

82 Benz 240 D, Kuan Yin
12 Ford Escape 4wd

You're four times

It's hard to

more likely to

concentrate on

have an accident

two things

when you're on

at the same time.

a cell phone.

www.kiva.org It's not like there's anything wrong with feeling good, is there?