[W126 Coupe] Fw: AIRCON is "Kaput"

[Jonathan Hodgman]

How long ago did you do the conversion?  Some MB's just do not respond
well to switching to R134a.  If the conversion was done some time ago
chances are you are low on refrigerant as R134a will perpetually leak
from our systems.  When you did the conversion did you replace all the
low/high pressure and temp sensors?  The pressure bugger is rather
prone to failing and not allowing the compressor to engage.

If the compressor won't engage I would see about getting a set of
gauges on there to see if you have enough refrigerant, if you do, I
would jump the compressor and see if that does the trick.

Jonathan


On Fri, 21 Jan 2005 21:31:04 +0800, Dan Gardner <cruftsk9 at tpg.com.au> wrote:
> 
> 
> > My SEC continues to give me grief,1 year after a r134a conversion its a
> > warm as toast.
> >    The system is not the climate control 5 button unit fitted to most 560
> > SEC's but the twin wheel manual model.With ignition on blower fan on II
> > but engine not running I cannot hear the compressor clutch cut in when
> > select A/C.Fuses are ok.
> >    I am aware there is supposed to be a speed sensor,but the CD rom refers
> > to the climate control 5 button unit .If anyone can point me in the right
> > direction to faultfinding this unit I would be gratefull.
> >
> >                                                    Kind Regards  Dan
> > Gardner    1986 560 SEC euro 220kw(300HP)
> >
> 
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