Hmmm...I don't either, actually. I lumped "self-leveling suspension" into "electronic dampening," which is likely completely different. I looked on BMW's site to see if they could state what electronic dampening was. So I looked elsewhere. Here's what it says:

Electronic Dampening Control
Monitoring all movements of the car, an electronic control unit determines the optimum level of damper forces and adjusts the suspension within fractions of a second to different road, load and driving conditions. When setting off, applying the brakes and in maneuvers, damper forces are increased. When travelling at a constant speed they are reduced for more comfort. You can also choose a sports setting manually. This system enables you to enjoy optimum handling and comfort whatever the conditions.

I don't know that this is the actual cause of the noise, but it seems logical that it could be calibrating when a door is opened. (The electronics assume the vehicle will be driven.)

Okay, so that's my last stab at guessing this.:nanana: I'm likely completely full of it--and someone who actually knows what they're talking about will speak up.

Joel

the problem i had was the manual release .that little black piece of trim broke and was hanging down and didnt allow it to close tight

No, it is fixed.

:welcome: :wavey:

I have a similar sound on my Ferrari when I open the door. I am guessing it has something to do with the F1 or some fluid getting ready. On a BMW, Im guessing something to do with the transmission but I really dont know.

I'll make a thread to see if anybody knows.
:)

I also found it confusing because it isn't a car, doesn't have a trunk, and doesn't have a trunk door. It's a truck, has a cargo area, and has a hatch..... but I knew what he was talking about ;)