A/C Recharge - Mercedes-Benz Forum

 
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post #1 of 8 (permalink) Old 06-06-2007, 02:21 PM Thread Starter
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A/C Recharge

Hello
I have 96' C220. Does anybody know where exactly is the vent where I would hook up freon and recharge the A/C system on my car. I would assume that there would be in and out vent, and I guess I need in vent. Thanks.
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post #2 of 8 (permalink) Old 06-06-2007, 05:52 PM
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no offense but based on how you are asking this, dont touch your ac system and have some qualified to work on it.
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post #3 of 8 (permalink) Old 06-06-2007, 05:57 PM
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Good point Streetglower; I wouldn't call the refrigerant intake valve a vent either.

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post #4 of 8 (permalink) Old 06-07-2007, 12:27 PM Thread Starter
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Ok, let's call it refrigerant intake valve. Excuse my ignorance. I would appreciate if one of you could tell me where it is.
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post #5 of 8 (permalink) Old 06-07-2007, 01:35 PM
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The reason some people may be hesistant to answer is AC systems have a low pressure side and a high pressure side. If you plug the can of R134 into the wrong side, it will explode in your hand.
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post #6 of 8 (permalink) Old 06-08-2007, 12:33 PM
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I'll throw in my .02 at this point as well.

Modern cars are not cars of old that could just be manhandled under shade trees. If your modern car's AC is not working properly you don't just screw on a can and add it. You don't have a sight glass, so you need a manifold gauge set to do the job properly. And it could easily be a sensor issue, line constriction/deterioration or saturated dryer, and not low refrigerant.

If you just add a can of refrigerant to it and it's not low, you will in fact DAMAGE the system, perhaps getting to buy a compressor, hose or other component. The cost of repairing the mistake you make -- assuming you're not also injured in the process -- with exceed by many, many times the cost of taking it in and having it done properly by someone who knows what they are doing.

Moreover, most shops will also do a leak check, if you're low on refrigerant it has to be going someplace. Then it is actually fixed and you don't have to continue to add refrigerant.

Take care and enjoy the ride,
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post #7 of 8 (permalink) Old 06-08-2007, 01:46 PM Thread Starter
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Thanks Greg
I really appreciate your answer and I won't touch it. It's good to be talking to some down to earth people who are kind enough to go into detail and explain the complexity of my problem. I'll probably go to the stealer. Thanks again.
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post #8 of 8 (permalink) Old 06-08-2007, 03:20 PM
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Quote:
Originally Posted by Babarogue
Thanks Greg
I really appreciate your answer and I won't touch it. It's good to be talking to some down to earth people who are kind enough to go into detail and explain the complexity of my problem. I'll probably go to the stealer. Thanks again.
No, big, B. And welcome to the forum, by the way.

You don't need to take it to the stealer, any good shop can do the work, many around here run specials.

Take care and enjoy the (cool) ride,
Greg

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