Re: [MBZ] We interrupt your politics to talk about: A cars air con

2014-09-18 Thread Jim Cathey via Mercedes

Well if I had pressure gauges...


Well, then using a schematic you can chase the compressor
signal to see where it stops.  It might indeed still be the
Klima.

-- Jim


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Re: [MBZ] We interrupt your politics to talk about: A cars air con

2014-09-17 Thread Hendrik and Fay via Mercedes
My A/C has been a bit naughty lately, the compressor will run when hot 
wired and it gets cool but otherwise the system will only run for a 
short period and then switch off.
My suspicion is the Klima relay, I have had a bit of a solder around on 
the board but it's still flakey, may be the RPM sensor on the compressor 
but it's within spec.

Anyone have any clues or BTDT?

Hendrik
who would like AC soon

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Re: [MBZ] We interrupt your politics to talk about: A cars air con

2014-09-17 Thread Jim Cathey via Mercedes

when hot wired and it gets cool but


It gets cool is not sufficient.  What are the pressures doing
when it is running?  One of the safety switches could be engaging.

-- Jim


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Re: [MBZ] We interrupt your politics to talk about: A cars air con

2014-09-17 Thread Hendrik and Fay via Mercedes
Well if I had pressure gauges, speaking of which did you know that fuel 
pressure gauges can be used to check transmission pressures?
Anyway what I meant to say that there is refrigerant in the system and 
it was 'topped up' before last summer.


Hendrik
who is under pressure

On 18/09/14 11:11, Jim Cathey wrote:

when hot wired and it gets cool but


It gets cool is not sufficient.  What are the pressures doing
when it is running?  One of the safety switches could be engaging.

-- Jim




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Re: [MBZ] We interrupt your politics to talk about: A cars air con

2014-09-17 Thread Meade Dillon via Mercedes
On my '87 wagon, the engine rpm signal wasn't getting passed to the KLIMA
relay via the main engine computer, so I ended up installing a bypass
relay in place of the KLIMA relay.  I lost transmission kick-down function
and the compressor cut-off belt saving feature, but gained AC.

Max Dillon,
Charleston SC
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