Squeaky Suspension L322

[DeanoRR]

I've noticed a slight squeak from the N/S of my '04 L322 Vogue recently when I drive through alot of rain or flood water, any ideas? Air suspension still working as it should, ride still brilliant and no warning messages, it just bugs the s*** out of me.

[P100]

I think you need to get your rear supension bushes checked.
Normally when they start squeaking they are finished and need to be changed. Check for feathering of the tread on the rear tyres, indicating they are now out of alignment due to wear !