[W126 Coupe] W126 A/C question?

[Markus Meyer]

Sounds like the frustrations I went through with my SEC a/c after I first
bought it.  In my case the a/c manifold hose was clogged and kept killing
compressors.  I haven't heard much good with switching from R12 in these
cars.  You have to make sure the right amount of oil and freon is in there
for starters, that your expansion valve isn't clogged, and that the
receiver/dryer is replaced along with the compressor when the job is done.
How about the high/low pressure switches?  They should be able to hook up
gauges to see what is going on.  Might be time to find another a/c shop like
I did.

There's a guy on benzworld in the 126 forum (48hp) who is having widebody
panels made from ones he just cut off a wrecked carcass he bought.  Should
be available soon.  You might want to search there and read up on it, look
for Widebody - Rise of the Phoenix or a posting along those lines.

Good luck!
Markus

On Tue, May 4, 2010 at 9:59 PM, <johnfolger at earthlink.net> wrote:


>  I have come to expect terrific advice from this experienced group, sinceI have now stumped 3 mechanics, spent over $

> 2500, and still no solution. My 1988 560 SEC used to have good A/C. It was

> changed a couple of years ago from R12. The system lost pressure after a

> couple of months, and hasn’t acted right for the last 2 years. The initial

> problem was that the Cold air would switch to heat for no apparent reason.

> It was suggested that a new mono valve, which helped for a while. I think

> I recall that with the A/C setting on high and the high speed fan switched

> on, it would go into max, which it no longer does. I have put in a new

> controller and new compressor with no real improvement. My fancy shop

> recommended that I replace the evaporator for about $2500, but they didn’t

> bother to mention Cryo-seal, which I just put in for about $200 bucks. I

> want to replace the dash later, so I was looking for a reasonable fix. The

> A/C now works, but is not cold,  unless I’m running at highway speeds. I’m

> told that it could take a week of running for the Cryo-seal to get up to

> speed. I’m really baffled here team, can anyone advise?

>

> I took the car to one specialty A/C shop and the mechanic told be the

> compressor was stuck-only problem was he was pointing to the pump!!!LOL

>

> Also-Can you still buy rear wide body AMG style panels anywhere? How about

> Rocarro seats?

>

> Thanks in advance for any advice.

>

> John

>

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