These came from a 2006(?) SLK55. Heated seats do work, and I have a plan for the Airscarf to work both heated and unheated in the future. This swap would be easier on a 2005+ Crosffire, as the 04's use different seat connectors. Still wiring will have to be done to make it work, as these seats originally had individual computers, and push buttons for seat position memory. I bought these seats without the computers, and because those were missing, no one in the SLK World forums wanted them. I paid $300 picked up for them. The seats bolt into the Crossfire, but the side panel where you see the controls in the pic is totally different. I wound up cutting the plastic of the SLK55 control panel, and then cutting a similarly sized rectangle out of the original Crossfire panel, epoxying the Crossfire controls into the SLK55 panels, and then some sanding, and color matched interior paint. You can see they're not perfect when you get right down and look at them, but from more than 5' away, you really can't tell. What I can tell is that my backside is a whole lot happier with these.


Here's what the original buttons looked like. Nice, but without the original computers and a ton of interfacing that the Crossfire doesn't have, it would be difficult to use these as is. Plan on some "arts & crafts" time to graft in the Crossfire buttons, then put your electrician hat on to splice the Crossfire seat wiring hardness into the motors of the SLK seats. The good news is that it all works, 100%. No computer programming, no extra electronics, just time with wire cutters, a soldering iron, and some zip ties to hold all of the wiring out of harm's way. I spent two evening doing the grafting, mainly just waiting on epoxy and paint to dry. I spent one other evening doing the wiring. Once I figured out which set of Crossfire switch wiring went to which motor in the seat (I used a small 12v battery to run things for me outside the car), the second seat took me less than an hour to wiring up, neaten up, and get ready for the car.

Now, word of caution. The way they make your backside feel better is that they have more cushioning in them, which raises your seating position. For my 5'8" frame, they are fine. When we did the Fall Dragon event this year, I let my 6'3" son drive, and he was hating the increased height, as he was having to bend down to see out of the windshield adequately on the tight, uphill turns. Normal driving he sometimes complained, but he also liked the support better. My Wife and I are both the same height, and like these, and plan on sticking with them. Also, the side bolsters are far more effective, and keep you planted in the seat during any hard cornering.