a/c problem - Mercedes-Benz Forum

 
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post #1 of 6 (permalink) Old 04-30-2010, 09:46 PM Thread Starter
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a/c problem

Can anybody tell me how to fill the A/c with one of those bottle you buy at the auto store? I have an ML 430 1999.( Should I have the car running? Have he AC on full blat? etc.

Thanks
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post #2 of 6 (permalink) Old 04-30-2010, 10:58 PM
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Hi, not trying to be a smart-a$$ by any means but the best instructions on how to use the can are usually printed right on the side of it. They may vary slightly with manufacturer so I recommend doing what it says on the one you buy.

To answer your specific questions, the one I bought suggested to have the car running and the A/C on, but again, verify this with the brand/type you have. Get one with a gauge if possible, it makes it easier to know when it's full so you don't blow your compressor.

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post #3 of 6 (permalink) Old 05-01-2010, 08:04 AM Thread Starter
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Hi DirectLA, thanks for your advise. I do know how to read, I just wante to know if there was anything different frm the blttle instructions.
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post #4 of 6 (permalink) Old 05-03-2010, 04:44 PM
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If your system is not holding R-134a, then there is a leak. These are sealed systems. It should not loose pressure. You need to find the leak and correct it, otherwise you are just wasting money throwing can of R-134a at it.
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post #5 of 6 (permalink) Old 05-03-2010, 08:37 PM
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You probably have a leak somewhere but there is another theory. That is pressurizing and depressurizing the R134a over a period of time will cause it to lose volume. In any event, take it to a shop specializing in A/C and ask then to check for a leak. If you have one, the most environmentally friendly thing you can do is to have the leak fixed.

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post #6 of 6 (permalink) Old 06-08-2010, 10:51 AM Thread Starter
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Thanks to all of you my A/C is fixed.
I have another question in regards to the electrical window bottons panel on my ML 430,
those bottons are a little loose and I wanted to fix it but I don't know how to take the panel apart ( the location is by the automatic shifting gear, cigarette tray) Thanks again
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