Heated Seat Wiring...

Mon Mar 17, 2008 11:47 am

Hello electro-whizzes.

Could use some wisdom.

I need to retro-fit some modern heating elements to my E30 heating loom as my E30 elements are tatty and new ones are NLA from the dealer.

They loom and elements are both 12V and both have what I think is 1 x earth and 1 x live running to each element (one for backrest and one for seat) and the E30 switches have 2 settings, warm and hot, just like the modern kit.

What I need to know is what colours on the supply end of the E30 loom should go to the newer elements?

The E30 loom feeds the elements with:

1 x yellow/red
1 x red
1 x yellow
1 x brown

Anyone know what these colours are?

This is of use to all Zoners because the modern elements are better/faster to heat up as they are carbon and are readily available / cheaper but their switches look cheap and destroy your entire interior.

Mon Mar 17, 2008 11:52 am

You sure about E30 heating elements being nla?? I got a set a few weeks ago.

Mon Mar 17, 2008 11:54 am

Zimmerbimmer just said so.

At least for Leather Sports Seats with vertical stitching (non-cabrio type).

I have a perfect set except for 1 backrest which is super tatty - I only need that ONE!

Hence this post, I need a plan B.

Mon Mar 17, 2008 1:42 pm

Anyone?

is there a chart somewhere that shows what colours do what?

I have searched, with no luck...

Mon Mar 17, 2008 11:35 pm

Tue Mar 18, 2008 10:18 am

Anyone - need to go the trimmers soon.

Is there a test I can do to find out what does what?

Tue Mar 18, 2008 7:39 pm

The part I need is available in BMW Netherlands for 65EUR.

Ordered.

But would still like some help with de-coding the colours on the OEM loom as I may still fit the modern stuff.

Plzz.

Sun Mar 23, 2008 7:18 pm

Must be an answer out here somewhere?

1 x yellow/red
1 x red
1 x yellow
1 x brown

Anyone know what these colours are in the context of heated seat loom?