Ml Airmatic Rear corner dropping

[paulwith]

2014 ML350 The nearside rear corner is dropping when parked for more than an hour.
Strangely when I open a door or the tailgate, without starting the engine and ignition off, after a few seconds there is a loud hiss and the corner rises to normal running height.
All other corners are fine.
Should I be looking for a leak in the bag or elsewhere?
Thanks

 

[renrutp76]

2014 ML350 The nearside rear corner is dropping when parked for more than an hour.
Strangely when I open a door or the tailgate, without starting the engine and ignition off, after a few seconds there is a loud hiss and the corner rises to normal running height.
All other corners are fine.
Should I be looking for a leak in the bag or elsewhere?
Thanks

When a door is opened the control module wakes up and corrects the height. If just one corner, likely the airbag, or pipework between airbag and manifold.

Sent from my SM-F721B using Tapatalk

 

[paulwith]

Update
The left rear bag was leaking, replaced with a bag from "Aerosus", came from Germany for £80 inc.
Indie's supplier wanted £300 .
Seems ok , will wait and see!

 

[hairydog]

How much work was involved in fitting the replacement bag?