I've just returned to the fold after 6 mos driving a BMW 328 Sport wagon. Of course, the bimmer was nothing like my 2012 E63 wagon. But it did handle corners firmly and without sway.

I've just purchased an E350 wagon. During the test drive I was surprised by the oversteer and how it leans in corners.
I contacted KMD Tuning which is my go to Indy. They did a Weistec tune on my E63 and also have tuned my S4s including KW3s and HAS. The owner told me that the shocks on the E350 is not airmatic like on the E63. Rather, it is a pneumatic shock which cannot be easily adapted.

I read the posts from Serge, but I'm looking for simpler solutions.

I'd appreciate hearing back from those wagon owner who modified the suspension and are happy with the results. Thanks in advance.