MBE350RA

Hi, just wondering if anyone has any advice on my W212 E350 estate 2010.
If I leave it for say, 4~5 hrs parked up the rear suspension drops considerably so that the wheels are inside the arches. I would say it it drops a min of 2~3".
Do they have air suspension?
Any help would be greatly appreciated.

ItalianJoe1

Yep, the wagons have rear air. You most likely have a leaking airbag. Lift it up and check it out.

MBE350RA

Thanks ItalianJoe1, I'll check it out. As both sides are dropping are they interconnected in some way or is it more likely I've got a leak on both corners?
Thanks

rmyrie

If both rear ,left and right sides drop, its most likely the distribution block .they leak internally .

xheamgbenz

In the cold weather it’s normal that it drops checked the links if they stuck and if they are good one of the bags it’s leaking go to arnott and get them both for like 600

ItalianJoe1

Not familiar with the wagon rears in particular, but I know there's only one rear height sensor on most of the cars, so I believe they are somewhat connected. Often, if one leaks, the added weight will collapse the other side, maybe not as much but it will look very low also. Not worth replacing one at a time, just do the pair if one is leaking. Do test the valve first though, as it can be stuck and leaking.

MBE350RA

Thanks for replies so far. I can hear the compressor operating on startup. Do I need to drop a panel off from under the car to access?

ItalianJoe1

The rears are generally pretty simple, you can see them without removing anything normally. Removal is usually very simple also but I haven't done a 212 in a while so I don't recall if there's any trick to it. Most airmatic rears are just bags and they can be squeezed down and removed, new ones installed the same way.