Thanks Peter -
That video Hendrik provided gives a pretty good idea of the work
involved! If i can just find a way work as fast as that guy in the
video it won't be bad! ;-) Like Hendrik i have also been gathering
the PDFs & putting them into a notebook. I am also printing some of
the photos which show me exactly what to look for as i remove the bits &
pieces. I still have not found a pdf telling how to R&R the glove box
so hopefully it'll be intuitive.
OK - when the instrument cluster is removed the WSM states the
speedo cable must be disconnected at the tranny. I have never
disconnected one on a W124 but I keep thinking it may be a CYA exercise
but then again, if I must disconnect it I need to be ready and get it
over with. Has anyone left it connected without any problem?
Also, Wilton's write up is very well done but it is for an '87
W124. Does anyone know how much difference there is between an 87 and
a 91? Can I assume the differences between the 87 and 91 evap R&R are
mostly cosmetic?
This weekend I will order the parts and plan, plan, plan - as wilton
said - it's the best way. Back when I worked, I was a planner for
construction projects like nuclear power stations and refineries so this
kind of complex project is just the thing to get me going again! :-)
Thanks again for all the help from all who replied. ;-)
Sincerely,
Larry T
91 300D 2.5
On 4/11/2014 9:01 PM, Peter Frederick wrote:
Yes, the expansion valve is in the engine compartment.
If the new evaporator leaks you have a problem, but otherwise any
leaks are in the engine compartment.
I would flush the rest of the system and covert it to PAG oil (dump
the compressor out and add 120 mL PAG oil), add 2 oz of oil for the
now fairly clean condenser, and replace ALL the o-rings. These are the
most like sources of leaks and by now are in poor shape.
You should consider replacing the short line between the condenser and
the receiver/dryer as well as these are the most likely to leak in my
experience.
And have the shop install a new receiver/dryer immediately prior to
charging. Saves all sorts of problems.
With a clean condenser and a proper charge the AC will work just fine
on R134a -- they came filled with it after 1992 anyway.
Peter
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