question for W208 CLK owners with heated seats

Apr 10, 2013 | 03:35 PM

maui

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2001 E430 Sport 34K, 2002 E320 (38K) ,1999 CLK320, sold, 2003 BMW 540ia (26K) sold

question for W208 CLK owners with heated seats

I have read the archives regarding heated seat retrofitting as I would
like to add this option. When I look under the front of either front seat there are 3 separate wiring harness couplers, two of which are connected.

Am I wrong in assuming the third is for the heated seat option? I suppose it could also be for the lumbar bladders... or both...

I looked at the parts diagram and it shows heating elements only for the seat bottoms. Is it true that the seat backs are not heated?
One poster indicated that the backrests are heated but could be wrong...

Thanks

Apr 10, 2013 | 04:02 PM

krazzz

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Joined: Dec 2007

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2002 CLK430

Good question. The heating is so weak on mine that I can barely tell it is working. I am thinking about putting some new elements in. That is interesting that you mention the heat only being in the bottom because that is all I can feel. I really want the heat in the back to help with lower back pain on long trips. I hope someone can shed some light on this.

Apr 10, 2013 | 06:24 PM

maui

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Joined: Nov 2012

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2001 E430 Sport 34K, 2002 E320 (38K) ,1999 CLK320, sold, 2003 BMW 540ia (26K) sold

thanks for the imput, I had an E430 and the seat heaters were fast and hot

Parts diagram does not show an element for the backrest

Would you mind looking under your seat to see if all three harness' are plugged in?

Apr 10, 2013 | 10:45 PM

krazzz

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2002 CLK430

Quote:

Originally Posted by maui

Would you mind looking under your seat to see if all three harness' are plugged in?

Well, I thought I was doing you a favor and you ended up doing me a favor. I went out to my car (in the rain) to look and see what connectors are connected under my seat. When I looked under there I saw that all three were connected. I started digging a little deeper and found that the one going to seat heating element only looked like it was plugged in an actually was not connected at all. I plugged in in firmly and lo and behold, it heated right up. And yes, the bottom and back both heat up.

Apr 10, 2013 | 11:01 PM

maui

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Joined: Nov 2012

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2001 E430 Sport 34K, 2002 E320 (38K) ,1999 CLK320, sold, 2003 BMW 540ia (26K) sold

ok, that is good to know, was it the center connecter that was unplugged?
that is the one on my car that is not connected...

I read in the archives that all W208 CLK come prewired for heated seats
so retrofitting is relatively easy, just new bezel with buttons fishing out harness behind bezel plugging it in. Same under seat...

Hardest part seems to be taking the seats out, removing the leather covers and fitting the elements....

Thanks for checking and good to know yours are now working!