Moab

I've searched the board far and wide, and seem to come up with a variety of opinions on the issue, primarily linked to a weakening compressor. My car does not lose height at all overnight (or over several days). I have left it on levels 1,2, and 3, and the same is true. Yet, the compressor has within the last week started running about every 4 minutes for <30 seconds when I drive. Possible causes? Weak compressor? Is there some sort of a pressure sensor that is faulty? Valve block that for some reason leaks when car is on? Thoughts?

04 allroad

That would explain a running pump and a non-saggy allroad.

Moab

...car is down on the stops on one corner...

girlroad

Now fix her fast so you are only replacing an airspring and not the compressor too.

Moab

Yes. Tired of suspension $$. Debating full coilover setup.