Pretensioner plug

[John_B]

Like an idiot I didn't take any photos, so bear with me...

I have swapped out my beige seats for a black pair, both from pre-facelift cars.

The passenger seat has gone straight in, no issues. However on the driver's seat, the yellow plug on the end of the wire to the pretensioner has been lost somewhere along the way, so I just have two loose wire ends.

On the beige seats I've taken out, it is just a two-core cable straight from the loom under the seat to the pretensioner.

On the black seats, it appears to be the same connector on each end (albeit the 'car' end plug is missing on one of them), however there is yellow connector in the middle, about the size and shape of an AA battery, clipped to the back of the seat. I've found the wire from the pretensioner to this yellow connector on ebay, but I need the other part - from this yellow AA-battery sized connector to the plug that connects to the loom in the car

I could chop the connector off the beige seat and solder it to the black seats, referring to the passenger seat to check which wire is which. However I am planning on selling the beige seats and would rather not lump an unsuspecting prospective buyer with this same problem.

Can anyone tell me the name of this type of connector so that I could buy and wire a replacement plug? Alternatively if anyone has one spare I'd love to buy it from you!!

This is the socket this plug goes into (from an old photo) if that helps. I'm finding it seems to be a pretty common connector type around the Z3, hopefully I should be able to find a suitable replacement!

Thanks in advance, I hope that all made sense!!

 

[John_B]

Ok, I was pretty sure this plug is yellow, but I think I've found it and it's purple

part no: 61106908137

Long shot - does anyone know the name of this type of connector so I can buy one of those without needing to butcher another seat or get ripped off and wait several weeks for shipping from Lithuania?

 

[Althulas]

https://www.lllparts.co.uk/product/wiring-sup-restraint-sys-belt-tensioner/mpn/61106908137

Most likely the same price from your dealer. Sophers of Lincon give forum members a discount and post items out sometimes free if your lucky 01522 681 680

and cheaper than this listing but posted to confirm it’s what your after

BMW Z3 Coupe E36 Wiring Support Restraint System 61106908137 6908137 NEW GENUINE | eBay

Part number - 61106908137 6908137. Model - Z3 Coupe (E36).

www.ebay.co.uk

 

[John_B]

https://www.lllparts.co.uk/product/wiring-sup-restraint-sys-belt-tensioner/mpn/61106908137

Most likely the same price from your dealer. Sophers of Lincon give forum members a discount and post items out sometimes free if your lucky 01522 681 680

and cheaper than this listing but posted to confirm it’s what your after

BMW Z3 Coupe E36 Wiring Support Restraint System 61106908137 6908137 NEW GENUINE | eBay

Part number - 61106908137 6908137. Model - Z3 Coupe (E36).

www.ebay.co.uk

Thanks Althulas, that ebay listing is the Lithuanian one I was referring to

I've contacted LLL Parts to see if they can help. The problem I have is the diagram on their website and RealOEM show three different part numbers for this cable, and as far as I have been able to tell, the diagram only shows half of one of them!

I'm beginning to think the best option might be to swap the whole pretensioner assembly from the old seats and install them into the new ones and then depending if there is realistically any value in the old seats & door cards either replace the cable when I can identify the appropriate replacement, or just scrap the lot.

 

[John_B]

Ok, next question for you knowledgable folk.... Are all pretensioners the same across Z3 years/specs?

I'll check them for matching part numbers next time I work on the car, but if they are then I could just swap the cables. The cable ends certainly appear to match each other

 

[Althulas]

If you put your VIN number or exact car details in Realoem (not sure if this link will work with my ///M details)

https://www.realoem.com/bmw/enUS/partxref?id=CK92-EUR-10-1998-Z3-BMW-Z3_M&mg=61&sg=10&diagId=61_0157&q=61108407916&series=Z3

Then click on the part number and scroll down you should see a listing of the models that cable fits and in this example does not list the 3.0.

Looking at the other cable under item 6. 61128401341 It lists it as fitting as well have you looked to see ifyou have this cable as well?

https://www.fcpeuro.com/products/bmw-wiring-sup-restraint-sys-belt-tensioner-61128401341#fitment

 

[John_B]

If you put your VIN number or exact car details in Realoem (not sure if this link will work with my ///M details)

https://www.realoem.com/bmw/enUS/partxref?id=CK92-EUR-10-1998-Z3-BMW-Z3_M&mg=61&sg=10&diagId=61_0157&q=61108407916&series=Z3

Then click on the part number and scroll down you should see a listing of the models that cable fits and in this example does not list the 3.0.

Looking at the other cable under item 6. 61128401341 It lists it as fitting as well have you looked to see ifyou have this cable as well?

https://www.fcpeuro.com/products/bmw-wiring-sup-restraint-sys-belt-tensioner-61128401341#fitment

That's the bit between this middle connector and the pretensioner, it's the other 'half' that I need, that goes from the middle connector to the car loom that I need to replace.

Thanks again though, but this is what I mean - there are three part numbers but seemingly none of them are the bit I need. Apparently the plug had been bypassed and this wire was spliced directly into the loom in the car that these seats came from

 

[t-tony]

If it’s only 2 wires, can you not make up a connection somehow ?

Tony.

 

[John_B]

If it’s only 2 wires, can you not make up a connection somehow ?

Tony.

Yes, absolutely, I know I can ramble a bit but that was really the crux of my original question - trying to find the name of that type connector so I can buy/find one and wire it up

 

[t-tony]

I was thinking use some “chocolate block” type connectors.

Tony.

 

[John_B]

I was thinking use some “chocolate block” type connectors.

Tony.

Yeah it's a fair shout, and I do have loads of JST connectors from messing about with raspberry pis & arduinos. The slight problem comes about if I ever want to change the seats again.

It is looking like the only viable option though if I don't want to butcher the old seats

 

[AntStark]

cant you just wire in something like this ? At least then you can disconnect them in future

https://www.amazon.co.uk/YETOR-Waterproof-Electrical-Connectors-Connections/dp/B07S7J6SRQ/ref=asc_df_B07S7J6SRQ/?tag=&linkCode=df0&hvadid=375456294447&hvpos=&hvnetw=g&hvrand=7194058535206907229&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9045740&hvtargid=pla-783024378690&ref=&adgrpid=79769156634&th=1

 

[John_B]

Just to 'close the loop' on this one, the pretensioner was exactly the same part number between my new (to me) and old seats, so I have 'borrowed' the pretensioner cable from the old seat and fitted to the new.

I can decide later whether I want to replace the cable on the old seats before I sell them, sell them without the cable but able to let the buyer know what they need. Or just scrap them if they're not going to be worth anything.

Thanks all

 

[TriumphZ3]

Just to reopen it again (apologies!!) but someone posted recently elsewhere that a heavier-duty cable was available for this; is this true? I want to replace the cable as both my driver's and passenger's seats are showing the pre-tensioner error, all because I moved the seat recently to get more legroom. I've already replaced the pre-tensioner to no avail.

 

[TriumphZ3]

Update: just been quoted £289 by my local BMW dealership... they won't sell the cable as a stand-alone part but it has to be the whole assembly as 'they should not be disconnected'. Darned if I'm paying that for a £5 cable, especially since I've already replaced the pre-tensioner. I repaired the driver's side and cleared the code, but the passenger side won't play ball hence the hope for a heavier cable and improved connectors.