I believe there was an upgrade in the door seals. Do a search
for this (use the search button above).
for this (use the search button above).
A few things...there is an extra door seal for the '00+ models, there is more internal door insulation, and lastly there is a foam insulation pad behind the door panel.I visited the dealer's showroom. I noticed that on the newer model M-class, the sound the door makes after you close it is significantly softer than my 98 ML. Has the rubber seals around the doors changed between years? Is there an upgrade that I can purchase to reduce the sound? Please help.
Thanks