MrDevine 14 Report post Posted August 14, 2016 (edited) So, I've only had the 540i for a few days, and have noticed that BMW didn't get the design right on the lumbar 'support' in their sports seats. When test driving the car I thought hmm that feels a little uncomfortable, however surely there is a lumbar adjustment? Whilst fiddling around the the 12 way electric sports seat after delivery, I eventually discover there is no lumbar adjustment. This was a problem as the seat was super uncomfortable and pinching my lower back. Anyway after searching the net I found this DIY hack which retracts the lumbar spring to the seat by cable ties, conveniently there are 3 x holes a 4mm cable tie can be threaded through. HACK 1. Remove 2 x Torx bolts at bottom of the hard seat back (you'll need a T30) 2. Seat back will slide down 3. Thread cable ties through holes (see image) 4. Slide seat back up into position (on the 2003 there are 3 x clips which have their own guide) 5. Insert Torx bolts and you're done. ++ MUCH more comfortable, now I just hope those seams aren't a problem. Kinda stupid to have stitching running down the middle of the lower back portion of the seat. Hopefully useful for someone. Ace, Mr D Edited August 14, 2016 by MrDevine spelling Quote Share this post Link to post Share on other sites
Allanw 1071 Report post Posted August 14, 2016 Get your self some Contour seats mega rare in NZ, though they were sometimes specced in SIngapore E38 7 series cars. The support of a sport seat, but the comfort of the Comfort seats! I'd take the Contours, if I could get some, but otherwise the Comforts are for me - the sports aren't comfy enough, and the standard seats are just ordinary. For me anyway - others opinions will vary, dependent especially on the size of their arses/waists Quote Share this post Link to post Share on other sites
kiwi535 538 Report post Posted August 14, 2016 my sports seats in my e34(no lumbar adjustement) were the most comfortable seats i have ever had in a car ,easlily! 1 Quote Share this post Link to post Share on other sites
allan 295 Report post Posted August 15, 2016 The e39 I owned had what was called comfort seats these had electric operated lumbar supports along with all the other adjustments very nice on a long drive. Upon researching I found a standard and sport seat were also available but not with adjustable lumbar support. Depends on what box's were ticked when first ordered no doubt Their might be a D.I.Y that could be done to fit them if required. 1 Quote Share this post Link to post Share on other sites
MrDevine 14 Report post Posted August 19, 2016 Chez replies - think I've found a sweet spot setting, I don't think a lumbar retrofit would be the answer. The hack works good - but I'll keep an eye out for sports contours :-) Quote Share this post Link to post Share on other sites
