I have an 08 gl550 which the rear end is low and extremely bouncy, but the front end is normal height. The malfunction sign is on also. I’ve changed the air bags. If anyone has any suggestions it would be greatly appreciated. Thanks in advance

 

It seems you need to replace the rear struts...

 

And maybe your compressor, because you’ve driven on blown bags. Hopefully just rear bags or even better, a disconnected level sensor or two.

if you drove on those bags the way they are odds are they’ve torn.

 

@Max Blast I've been an avid reader on MBworld since 2017. I've read every thread in reference to the x164. If the GL never went with coil springs instead of air, I'd imagine the threads would significantly less.

@412jinx I'm by no mean downplaying your question at all.