Quite simply, my O/S airspring deflates periodically when parked. I've done the soapy water on the bag trick, to no avail and am at the head scratching stage as it may be fine for weeks, then down it goes! :doh: Any suggestions from you fine people on this little rascal?
 
Very Similar problam as I had.

After much searching and water spraying turned out to be a hairline crack in the top moulding where the Air Pipe Union fits, however only showed up when the airbag was removed and pumped up with air in a bucket of water.
 

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