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Car Forum / Mercedes-Benz Cars / July 2006

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89 560SL A/C

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John 560SL - 12 Jul 2006 18:47 GMT
Is the suction hose allowed to be cold?  Should it not at least be
warm?  What could cause this?  The cabin temp is not as cold as it
should be.  The vent temp reads 75 at 100 degrees outside.  Could it be
a flap problem?  What is involved in working on the flaps if that is
the case.  Big job?
Tiger - 12 Jul 2006 18:55 GMT
The suction line should feel cold. If not, then you are probably low on
freon... I don't think it is anything else.
John 560SL - 12 Jul 2006 19:14 GMT
> The suction line should feel cold. If not, then you are probably low on
> freon... I don't think it is anything else.

There are bubbles in the sight glass.
I'll have them check the gas charge.

They added 1 can of R12 in the spring, but I suppose I could have a
small leak.
John 560SL - 12 Jul 2006 19:14 GMT
> The suction line should feel cold. If not, then you are probably low on
> freon... I don't think it is anything else.

There are bubbles in the sight glass.
I'll have them check the gas charge.

They added 1 can of R12 in the spring, but I suppose I could have a
small leak.
Tiger - 12 Jul 2006 22:33 GMT
Bubbles means low charge... you lost some freon.
 
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