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Platinum BFuk Member
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571 Posts
Discussion Starter · #1 ·
Hi there,

I'm planning on swapping my driver's seat for one that has the electronic lumbar support. My seat is completely manual.

I went through a process of seeing how much BMW would charge to retrofit lumbar support but it was £219 in parts and £575 in labour!

However I found out from them that there are 'low' and 'high' wiring modules. Because my car has electric back windows apparently that means I have the 'high' module and in theory there should a wiring loom under the driver's seat carpet to plug my electric lumbar cable into.

Speaking to an indie, he was concerned that if I swapped the seat for a completely electric one (eg not just the lumbar pump) that I might need some kind of ECU to be fitted.

Does anyone know what 'gotchas' I might come up against or things I should consider in terms of installing seats with complete or partial electrics in place of my current manual ones?

Thanks,
Andy
 

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Platinum BFuk Member
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571 Posts
Discussion Starter · #3 ·
Thanks. Is this the loom? http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=300298842814

I couldn't find it on realoem.com.

What physically is the seat memory module and where does it get installed?

Also, do I just need that for memory seats as I'm aware of the following options.

1. Manual seats with 4-way electric manual lumbar control (have sourced this one)

2. Electric seats (seat adjustment motors) with or without heating, with or without lumbar control.

3. As above but with memory.

Thanks,
Andy
 

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11 Posts
Yes, that's the loom. The seat module gets installed behind the glove box iirc. It is called the memory seat module because it is 2 functions in one...electric seat control and the memory for them. You will have an existing memory module for your mirrors.
 

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Platinum BFuk Member
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571 Posts
Discussion Starter · #5 ·
Thanks Neal. I think from the sound of it if I install a manual seat with just the lumbar control that I will get away without installing the module? I'm seeing a car interior specialist tomorrow who would be installing the seat and swapping the leather over from mine to the new seat when I get it. He knows an ex-BMW technician who I'm hoping might be able to advise more exactly on what my car needs. If it's all too complicated I'm guessing I could just take a standard 12v feed from somewhere as the lumber mechanism is just a pump, valve unit, switch and a couple of inflatable bags....

Cheers,
Andy
 

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Platinum BFuk Member
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Discussion Starter · #8 ·
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