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Discussion Starter #1 (Edited)
Hi all and Happy New Year!

I am the fairly new owner of a 2008 Nav L, and over the last couple of months the rear air suspension has more and more rapidly deflated during down time.

As soon as I start 'er up, it re-inflates and I'm off with no consequence, but I'm wondering as it seems to deflate faster and faster now, is there a down side to ignoring this?

As I say, it re-inflates quickly, remains inflated and doesn't deflate for some time after the day is over (usually overnight, although now if it sits for a couple of hours, I notice it deflates).

And as I do consider fixing, what diagnostic procedure would be best? As I understand it, this could be one of several problems. Or more than one?

Look forward to hearing back, before I break her back!

Thanks
 

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I had the same problem (2008 Nav) and I replaced the air suspension with a coil spring kit. A1 Cardone comes with air suspension deactivation kit so you don't have to deal with flashing the pcm.
It took me 3h. Pretty easy.
 
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