Quote:
Originally Posted by VOLVOBOY
There. I knew it !!
I`ve talked you out of it.
The Drier is really more important than the Expansion Valve but if you don`t fancy it - fair enough. A good Air-con Co. will replace the Drier for you - at a cost of course.
When you take it to be re-gassed they must pressure test first and then vacuum down the system for at least 45 mins. Again you can ask them to put some lubricant in.
A good Co. will tell you how much Refrigerant has gone in. Volvo specify 1Kg . They will probably not get that amount in but should go as close as possible.
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No that has been illegal for the last 11 years , it MUST be pressure checked with Oxygen-free Nitrogen at the working pressure of over 200 psi .. The vacuum test was very unreliable as the suction would draw a crack together and not show a leak .
Remember Only a licensed professional is allowed to work on AC systems now ..