Sorry - I said "post 3 above" when I should have said post 3 in the link at http://www.benzworld.org/forums/aud...13173-how-guide-cell-phone-upgrades-plug.html
The first thing for you to do is locate the phone bulletin for your car. There are links to the chart of them in the How-To Guide, and there is also a sticky for them. Check to see that you have a PSE installed at all. You may not. If you have a PSE, the phone bulletin's equipment list should tell you what phone would be used with the car - probably a "Timeport." If so, your PSE would be a "Timeport" PSE.
If you find a PSE, check its part numbers. Post 3 in the How-To Guide tells you which part numbers equate to what PSE. The main concern, however, is whether it is a "blue label" PSE. As to "blue label" I cannot be more explicit than I have been in post 3 of the How-To Guide thread - you'll just have to look and see if the label on the PSE has the blue markings described. The reason you check the PSE for blue label is simply to avoid buying a Universal PSE if you don't need it.
The Blue Label description is sketchy because at some point, many existing PSEs had a firmware update; when the update was done, some techs marked the PSE label with a blue highlighter (my '00 StarTac PSE had a single blue highlighter slash through the part number); others affixed a blue stick-on dot (I later replaced the StarTac PSE in the '00 with a TimePort, in order to get Caller ID; that PSE had the blue dot). That is ALL I know about it. The PSEs that had the firmware update can support the bluetooth pucks. I am not aware of anyone who still has the equipment or the firmware for the update (and I also don't know where or at how many locations the updates were done).
If your PSE does not have the blue highlighter marks or a blue stick-on dot, or if you do not have a PSE at all, you will need to buy a "Universal PSE."
Either way, you also DO need the cradle eliminator cable and V60 puck unless you really want to try to locate a cradle and put up with the "fit" headaches that sometimes occur between the puck and the cradle.
If your car does not have a PSE at all, you will need to have the COMAND version coded after installing the equipment. Version coding is discussed in the first post of the How-To Guide. Your model does not require a Voice Control Module, but you could install one if you wished. In '02, voice control could control not only the phone, but certain other audio system features. If you install it, I believe it also requires version coding (negligible time/cost difference over coding just the phone).