[W126 Coupe] AC Problem with 1983 380SEC

[Dick Spellman]

Hi Greg:

The mono-valve repair kit is $40 or so from Jonathan or Rusty on this 
list.  I'd do it yourself if you are inclined.  Time will be under 1 
hour even for the shop.  Depending on the year of your SEC (83-85 it's 
right there in between the firewalls next to the battery and easy to get 
at) (86 and up and you have to move/lift one item bolted/screwed to the 
firewall that sits just over the mono-valve head).  With the repair kit 
the valve housing stays put and you just lift the old head out of the 
valve and drop then screw the new head with plunger in.  I'd degunk  the 
valve housing with a bit of compressed air to remove any sludge or use a 
hose with water or a rag if you can reach in there.  There's a simple 
electrical connection on the head that you un-plug with the typical 
squeeze to release MB clip.   In either case it's no big deal to get 
this done with a screw driver and 1/4 drive metric socket set and you'll 
lose no more than an ounce or two of coolant in the process.

How's the dealer going to repair the system leak he found??/  Just curious.

Dick

kashella at comcast.net wrote:

> I wrote back on June 29th about the climate control problem I was 
> having.  Dick answered back.  He was right, after charging the system 
> twice for me and saying that the system had no leaks, the dealer found 
> a leak at the compressor today.
>  
> The dealer also confirmed Dick's diagnosis that I also have a 
> mono-valve problem.  Only thing is that I can find the mono-valve from 
> an internet supplier for $50, the dealer is charging $100 for the part 
> and says it takes 2.3 hours of labor to put it in.
>  
> Dick, thanks for your help.
>  
> Greg Kashella 
>
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