Question about Audi A4
Likely, the easiest problem to fix is gas refill. If your air
conditioning system is fine however it has run out of gas, one hundred anywhere
will get you a refill. This will get you cooled down again. However, if
the gas has leaked from somewhere, then a simple refill will only mean
the gas leaking again.
Before you assume that there is a leak from under the dash, ensure that there is a leak to begin with as a dash leak cannot be physically spotted without pulling the dash apart and getting inside. Generally, if you get a refill, and your air conditioning goes good for a few days then starts taking ages to cool the cabin down again, you can definitely assume a leak exists.
Sometimes, your evaporator core or heater core hasn't stuffed up, instead maybe a connecting pipe has developed a pin *****, which is enough to leak the gas. Either way, you will need to get into the dash, to find the pin *****, if indeed that is the problem, in order to replace or patch up the pipe. Now other things that can go wrong, could be a faulty heater tap, it may not be sending or receiving either way which means cold will work but heat wont, or the other way around. Another thing it could be, sometimes the actual switch that you use to point it to cold on the dash, sometimes that switch can stuff up, so when you point it to cold, because a short circuit has occurred, your air conditioning system wont actually receive the information that you want cold, and hence wont deliver the instruction (i.e. cold).
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Posted on Jun 07, 2010
More than likely you have a leak in your system and do not have enough pressure. This will activate the low pressure switch to protect the compressor from damage due to lack of lubrication, which is supplied by the refrigerant which carries the lubricant.. Rick.
Posted on Jun 07, 2010
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Posted on Jan 02, 2017
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