I'm working on it. I have most of the parts (I still need the wiring harnesses which are coming from Germany). I have the start of a DIY here but right now it just has a preliminary parts list, pictures of fitting the switches to the seat controls, and some wiring diagrams and TIS pictures. Keep checking back as I'll be updating it as I make progress.jimdan said:I have gegun to see posts of OEM add-ons of the lumbar unit to some BMWs. Does anybody have the how to and parts needed for the '03 330i?
As long as you can get 12V DC power there (which, if you have power seats, you should be able to do easily) you can just tap that for power. In fact, before I came up with the pin trick in my DIY, I was planning on making Y-cables for the power into the seat controller.TheRiddle said:but after cutting the panel and placed the switch for the control I sadly realized that the main control module hasnt any hole to place the plug with 2 wires (brown/red) that caused some problems to terry...
the entire module is different the main plug is located inside (wires come from the centre of the seats), while 328 module has it on the back (as shown in terry's DIY)
i can't swap the module Bcause coupe' module hasnt headrest control, and ETK seems not to give the code for the correct module (only memory left/right LHD/RHD)
hummmTerry Kennedy said:As long as you can get 12V DC power there (which, if you have power seats, you should be able to do easily) you can just tap that for power. In fact, before I came up with the pin trick in my DIY, I was planning on making Y-cables for the power into the seat controller.
I think you emailed me earlier today? I'll reply here for the benefit of others who might be interested.drmcc said:I am in the same boat here. I read Terry's excellent DIY for Lumbar retrofit, but was surprised to see, after spending $500 in parts, that the inside of the seat frame and seat control module are completely different for a convertible. Dealers can't/won't help. I have a friend that has a 330 convertible with Lumbar and she has offered to let me do some mild disassembly to determine where the valve, pumps and connectors all go. This seems to be my option of last resort. Any others with any experience adding lumbar to convertible seats?
I wouldn't consider that ghetto at all - I did the same thing on a previous car but went with foam instead. Worked great!alken said:Ummm... I went ghetto... After suffering without lumbar for over a year now, I took the back cover off, stuffed a towel into the underframe of the sport seats. It made a huge difference, but I think I'm gonna use a bigger towel - I want a little more. No worry about air leaking, pumps, parts - and it was F R E E
Please be careful - I cut my thumb pretty good on the sharp edge of the underframe.