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      03-07-2019, 02:14 PM   #2
Herr Dreier
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Drives: G31 540i Xdrive
Join Date: Nov 2015
Location: UK

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Quote:
Originally Posted by Gucci74 View Post
Hello

I have a 2011 F11 523i (love that straight six petrol sound). But recently having a weird air suspension issue which is inconsistent.

On the passenger side, it occasionally drops. Once ignition is started, it levels back up, no error codes, all fine. It might stay at that level for 4 days unused. Then car is used, parked up, after 1 hour, it's dropped.

Local garage plugged in diagnostics, no error codes. Tried soapy water on the affected areas, saw no air leak bubbles.

If it were a control module misbehaving, you'd expect an error code? If it were a leak, you'd expect a consistent deflation pattern?

Thoughts?
The air bags can have that behaviour when they have a crack in. It depends on how they settle as to whether they leak. Mine went at 4 years, 40k miles and had exactly same behaviour as you describe. Far cheaper to replace than the compressor, which can die if overworked.
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