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post #1 of 4 (permalink) Old 01-05-19, 07:55 AM Thread Starter
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2008 Nav suspension leak

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


Last edited by Playercoach4; 01-05-19 at 07:58 AM. Reason: Forgot to add year to title - 2008
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post #2 of 4 (permalink) Old 01-05-19, 08:06 AM
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Re: 2008 Nav suspension leak

It could be a leak in the lines or bags. Get a spray bottle with soapy water and spray all the lines and connections to the bags. You'll see bubbles if there's a leak. They also can set a code. The light doesn't have to be on for a code to set.
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post #3 of 4 (permalink) Old 01-05-19, 08:47 AM Thread Starter
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Re: 2008 Nav suspension leak

Thanks, I'll be doing just that...
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post #4 of 4 (permalink) Old 01-06-19, 11:36 AM
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Re: 2008 Nav suspension leak

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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