I am doing my A/C system on a 603.961 300 SDL
I got my switches
dryer
oil
R-12
temp sensors
expansion valve
low side hose ECT.
pretty much everything but the condensor ,big hoses, compressor, climate control unit

My compressor clutch was only engageing when 5-7 pin was jumped at the kilma
so I will do this to kick it in while it is charging and after A/C is charged

if it doesn't kick in then I will replace kilma am I right in thinking this?

But here is the real issue
I was at the junk yard the other day to get some interior parts off an 85 SD

I saw where the expansion valve was on the 85 it's not that bad at least you can get to it!

now I get home and got to take my dash out for some repairs ECT. (thats a tuff job but doable)

I find where the expansion valve is and try to figure a way to get to it I don't think it is possible

I have all the dash out
duct work out
trim panels
even the big braket that bolts the steering colum to the trans tunnel doesn't help
it seems to be one of those things that even if I got it out
getting it back in would be impossible

I am a logical calm person but I see no way to do this
I NEED TIPS or should I just leave it

Yes, it can be done, without removing the dash. I did it quite a while ago and can't remember the particulars, but if I recall, you need a good set of tubing wrenches, don't go with cheap, they will bend. While this job is difficult, I would not skip it, you have several O-rings in there that are old and should be replaced.

Pretty sure this is the same as your car:

http://www.funnyyouasked.com/Mercedes/W126/ExpValve/removal_and_replacement_of_expan.htm

Yes they are not too bad, just get out some box fans to help cool you while you contortion your body to fit inside there.

Takes me about 30min to R&R one usually.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

I had to fix my dash anyway (P.O. dog ate part of dash pad and A-pillar if you are reading this you have a bad dog!)

So I put foam, fiber glass, and bondo to shape it then I will put carbon fiber on it
I will post pics!

So I am all in on this issue dash duct work out
and I am the type that if I am going to do something I go all the way and do it right

I am also the type that says well if I am in there anyway I might as well do...... as well since I in here.
so these projects take awhile

thanks for the link crowsfeet of coarse that will work instead of custom grinding and bending wrenches