I bought these parts to install the lamella skyview wind deflector on my 00' ML55. I believe it fits any 98-05 w163 as all the roof rails are the same. I never got around to installing it and now I am going to be selling it shortly. I opened the four parts that attach to the roof rails to see how it would install but never installed it. You can see in the pictures that everything is new and never used. These parts are EXTREMELY hard to find and I had to wait over a month to have them shipped from Germany. I paid $400 from the dealer and would entertain all reasonable offers.
The first picture is NOT my car.. I found it on the forum here and posted it as an example of what it looks like installed for reference. The other three pictures are mine of the actual parts.
Detane I was just stating what I paid for it though the dealer. If you want to offer less because that's what perfomance products sells it for then let's make a deal :-)
The install is pretty easy. It's a little bit of work to pry off the endcaps on the rails, then you remove two bolts and to install the new pieces. Then there are four screws that hold the deflector in place. It's about a thirty minute install with a few standard tools.