Heated seats

BlackBetty · Post by **BlackBetty** » Thu Jul 30, 2015 3:34 am

Does anyone know if heated seats were an option with Sport seats? Or just the comfort seats?
Found a 635 that is being parted out and was wondering if it was worth the time and effort to rip the wiring harness out to add to my car...my car has sports, the donor has comfort seats.. I am sure I can find some heating pads to slide in there, just don't know if the physical structure of the sport seat/ foam allows it..
Thanks..
Pete

sharkfan · Post by **sharkfan** » Thu Jul 30, 2015 8:39 am

I nearly bought an M635CSi that had original heated and electric memory sports seats so yes, they can be fitted.

I have an unused OEM loom and two of the very, very rare E24 heating switches and will some heating pads to my seats.

One day

BlackBetty · Post by **BlackBetty** » Thu Jul 30, 2015 11:49 am

sharkfan wrote:I nearly bought an M635CSi that had original heated and electric memory sports seats so yes, they can be fitted.

I have an unused OEM loom and two of the very, very rare E24 heating switches and will some heating pads to my seats.

One day

Yeah, I already grabbed the switches... Maybe I will go pull the wireing harness ..
Thanks
Pete

Ralph in Socal · Post by **Ralph in Socal** » Thu Jul 30, 2015 5:14 pm

e30 convertible cars usually had sport seats with heaters. Same seats so heat pads should work.

Ralph

sharkfan · Post by **sharkfan** » Thu Jul 30, 2015 5:43 pm

The very rare bits are the E24 heated seat switches as they have a horizontal orientation - all the other cars of that era that have similar switches and wiring have a vertical orientation; E23, E28, E30, E32 and E34.

BlackBetty · Post by **BlackBetty** » Sat Jan 30, 2016 11:12 pm

So I am looking at the wiring diagram for the heated seats, and I do not see any relays in the system.. Am I to understand correctly that both heating elements for both seats run thru fuse 16 (15amp)? And all power runs thru the switches? 180 watts doesn't seem like a lot of heat.... And a lot to run thru a switch..
Not the sharpest with electrons,
Pete

francoid · Post by **francoid** » Fri Aug 05, 2016 12:10 pm

I am getting the seats redone and will get heated seat pads, since the ladies of the house seem to distaste the cold seats in the winter time.

Couple questions please:

1) traditional metallic vs carbon/water... thoughts? efficiency, durability?

2) I have one (and looking for another) E30 switch which I intend to put on the back of the central console, where there are 2 preformed holes. Has anyone already wired that? Any advice?

Thank you

Tommys 89 635 · Post by **Tommys 89 635** » Tue Aug 09, 2016 9:24 pm

I last checked a few years ago the OEM heating elements were still available. The overall seat rebuild was unexpectedly way expensive but thinking back I should have added them.

francoid · Post by **francoid** » Tue Aug 09, 2016 10:04 pm

Since my car did not have them to start with, it's hidden, and the technology must have progressed, I am not sure I would want to use OEM as opposed to modern stuff. Is that heresy?

francoid · Post by **francoid** » Tue Aug 09, 2016 10:05 pm

Of course I want the buttons to be OEM...

jonn · Post by **jonn** » Tue Aug 23, 2016 1:43 pm

I have an 87 build highline with sports heated seats in the UK and re the relay it is k7 heated seats and sliding roof not sure if this helps at all but for info

Regards jon

francoid · Post by **francoid** » Tue Aug 23, 2016 1:47 pm

Thank you. Still working on the wiring, so this helps.

bigcoupe.com

Heated seats

Heated seats

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