Replace A/C Receiver-dryer with Condenser?
#1
06-10-2018, 04:48 AM
Replace A/C Receiver-dryer with Condenser?
Finally located multiple leaks in the A/C condenser due to corroded cooling fins which need replacing. Before refilling, the system will be vacuumed clean and dry.
My question is would the contents of the Receiver-dryer be "refreshed" by the vacuuming and therefore there is no need to also replace the receiver-dryer? TIA
My question is would the contents of the Receiver-dryer be "refreshed" by the vacuuming and therefore there is no need to also replace the receiver-dryer? TIA
#2
06-10-2018, 07:18 AM
Veteran Member
If you have the original drier, change it. When the incandescent bag breaks apart inside, sometimes it's a real chore getting all the beads that floated around the system out. The driers are relatively inexpensive anyways. If you had the drier replaced within your last A/C repair, I'd just vacuum the system out for a bit and be done with it. Just add an ounce of oil to the system when replacing the condenser and another half ounce if you replace the drier.
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Pristine97XK8Convertible (06-10-2018)
#3
06-10-2018, 08:22 AM
Senior Member
The XH7 and XH9 molecular sieve desiccants used with R143a driers need to be heated to a minimum of 200°C while under vacuum (300-400°C without vacuum) in order to drive the moisture from the desiccant. Not really possible to do with the dryer installed in the car. Driers also usually contain a filter, so replacing the relatively cheap dryer gets you a clean filter as well.
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Pristine97XK8Convertible (06-10-2018)
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