Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.
Help please - wiring heated seats
- Fishy Dave
- Member
- Posts: 917
- Joined: Sun Jul 05, 2015 8:01 pm
- Location: Wiltshire, England
- Contact:
Help please - wiring heated seats
Hello,
Myself and a fellow forum user are both in the same situation and could do with your help please.
- We have post 2006 Z4 Roadsters
- We are wanting to add heated seats to our cars which didn't come with them from the factory
- Being facelift cars the required additional heated seat looms are not present
- We have the switch panel with heated seat buttons
BMW used to offer a retrofit kit: http://www.realoem.com/bmw/enUS/showpar ... Id=52_3032
This has been discontinued for some time now and I have so far not been able to find a copy of the installation instructions EBA 0301546. Judging by the cost of the kit (it was about £20) I am guessing that it consisted of wires and connectors only. I thought about visiting a breakers but don't know what I would need to remove from the donor car!
Trying to think laterally I noticed that the regular seat electrics for the BMW X3 and E85 Z4 have the same basic seat wiring loom 61117111903, therefore i wondered if an X3 retrofit kit could also be used 61110307620? I contacted a helpful guy from Dick Lovett Swindon who is looking to see if he can get hold of this part, but BMW Germany show one in stock only with a note that this part failed in testing!
So, this leaves myself and fellow forum user Marlon a bit stuck. Any electronics whizz able to understand the wiring diagrams (!) and make up custom looms for us in return for a bit of cash?! If not, does anyone still have a copy of the retrofit instructions they could share or maybe photos that might help?
Many thanks, Dave
Myself and a fellow forum user are both in the same situation and could do with your help please.
- We have post 2006 Z4 Roadsters
- We are wanting to add heated seats to our cars which didn't come with them from the factory
- Being facelift cars the required additional heated seat looms are not present
- We have the switch panel with heated seat buttons
BMW used to offer a retrofit kit: http://www.realoem.com/bmw/enUS/showpar ... Id=52_3032
This has been discontinued for some time now and I have so far not been able to find a copy of the installation instructions EBA 0301546. Judging by the cost of the kit (it was about £20) I am guessing that it consisted of wires and connectors only. I thought about visiting a breakers but don't know what I would need to remove from the donor car!
Trying to think laterally I noticed that the regular seat electrics for the BMW X3 and E85 Z4 have the same basic seat wiring loom 61117111903, therefore i wondered if an X3 retrofit kit could also be used 61110307620? I contacted a helpful guy from Dick Lovett Swindon who is looking to see if he can get hold of this part, but BMW Germany show one in stock only with a note that this part failed in testing!
So, this leaves myself and fellow forum user Marlon a bit stuck. Any electronics whizz able to understand the wiring diagrams (!) and make up custom looms for us in return for a bit of cash?! If not, does anyone still have a copy of the retrofit instructions they could share or maybe photos that might help?
Many thanks, Dave
Corvette C6
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
- MrPT
- Lifer
- Posts: 4745
- Joined: Sun Oct 21, 2012 7:44 pm
- Location: Bucks/Oxon
Re: Help please - wiring heated seats
I've got the retrofit instructions: https://dl.dropboxusercontent.com/u/153 ... _seats.pdf
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
2006 Z4 2.5si: gone
2006 Z4 2.5si: gone
- RJS-Z4
- Senior Member
- Posts: 2387
- Joined: Wed Feb 29, 2012 3:43 pm
- Location: SE London/Kent
Re: Help please - wiring heated seats
I'd say that looks fairly do-able. It appears to just be cabling. You could make up a real rough version (no tucking under carpets etc) and check if it'll work on just one seat. Then actually knock a loom up or rip one out of a breakers.
The only thing that concerns me is the reference to coding it in? Should that be necessary?
The only thing that concerns me is the reference to coding it in? Should that be necessary?
Titanium Silver E85 Mods Done - 224's, Stubby, Amarone //M seats, ZHP, Retrofitted Wind Deflector, Aux In
- Fishy Dave
- Member
- Posts: 917
- Joined: Sun Jul 05, 2015 8:01 pm
- Location: Wiltshire, England
- Contact:
Re: Help please - wiring heated seats
Hi MrPT, thanks so much, that's a huge help, better than BMW UK so far in fact
I've found the X3 heated seat loom retrofit kit for sale in the states, with images, wondering if it is the same or at least similar? https://www.ecstuning.com/Search/SiteSe ... /ES159521/
I've found the X3 heated seat loom retrofit kit for sale in the states, with images, wondering if it is the same or at least similar? https://www.ecstuning.com/Search/SiteSe ... /ES159521/
Last edited by Fishy Dave on Tue Jan 26, 2016 4:29 pm, edited 1 time in total.
Corvette C6
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
- Fishy Dave
- Member
- Posts: 917
- Joined: Sun Jul 05, 2015 8:01 pm
- Location: Wiltshire, England
- Contact:
Re: Help please - wiring heated seats
I think I've answered that, it is different according to the legend within the translated Monaco instructions I found! Not sure if it would be close enough to adapt through?
http://www.mbmw.it/istruzioni/pdf/307621.pdf
Should I track down a Z being broken or is their an electronics guru who can make something up?
http://www.mbmw.it/istruzioni/pdf/307621.pdf
Should I track down a Z being broken or is their an electronics guru who can make something up?
Last edited by Fishy Dave on Tue Jan 26, 2016 4:56 pm, edited 1 time in total.
Corvette C6
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
- MrPT
- Lifer
- Posts: 4745
- Joined: Sun Oct 21, 2012 7:44 pm
- Location: Bucks/Oxon
Re: Help please - wiring heated seats
No worries. Wish I could help more - I've done a few retrofits and made up my own loom for electric seats - but just a bit stuck for time at the moment.Fishy Dave wrote:Hi MrPT, thanks so much, that's a huge help, better than BMW so far in fact
It is very time consuming, but I would persevere with the wiring diagrams, if you can (assuming you can't find the OEM kit). They are more simple than they look! I don't think I'd attempt this without knowing exactly what was being plugged in, where. One accidental short and you could be stuffed, particularly with the seats because they use the full 12V feed for power and heating.
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
2006 Z4 2.5si: gone
2006 Z4 2.5si: gone
- Fishy Dave
- Member
- Posts: 917
- Joined: Sun Jul 05, 2015 8:01 pm
- Location: Wiltshire, England
- Contact:
Re: Help please - wiring heated seats
Thanks again, I'm determined to have heated seats eventually
Found the E46 heated loom diagram which looks pretty similar? http://www.angelfire.com/myband2/ds/hea ... nglish.pdf
Found the E46 heated loom diagram which looks pretty similar? http://www.angelfire.com/myband2/ds/hea ... nglish.pdf
Corvette C6
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
- Fishy Dave
- Member
- Posts: 917
- Joined: Sun Jul 05, 2015 8:01 pm
- Location: Wiltshire, England
- Contact:
Re: Help please - wiring heated seats
A box from ECS tuning turned up today with the X3 retrofit loom included. I'm not going to have the time to take a look at it for a couple of weeks sadly, but assuming it can be made to fit I have the correct switch panel and wiring so just need the heat pads.
Last edited by Fishy Dave on Mon Feb 15, 2016 1:58 pm, edited 1 time in total.
Corvette C6
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
- Marlon
- Lifer
- Posts: 10899
- Joined: Mon Jan 05, 2015 11:13 am
- Location: Lancs.
- Contact:
Re: Help please - wiring heated seats
I will be watching this thread intently - fingers crossed you are able to sort itFishy Dave wrote:A box from ECS tuning turned up today with the X3 retrofit loom included. I'm not going to have the time to take a look at it for a couple of weeks sadly, but assuming it can be made to fit I have the correct switch panel and wiring so just need the heat pads. How does the car 'know' it is connected to the heat pads? Does it read a certain resistance or current flow?
Gone: 3.0si 2008 E85
911 997 Carrera S
- Fishy Dave
- Member
- Posts: 917
- Joined: Sun Jul 05, 2015 8:01 pm
- Location: Wiltshire, England
- Contact:
Help please - wiring heated seats
Result! The X3 retrofit loom is broadly the same. Having spent the last hour or so checking between German and Monaco(!) X3 retrofit instructions and English Z4 instructions (thanks again MrPT) I labelled up all 14 connections and every one checks out, even the wire colours are identical.
The main differences are that the X3 loom is in two halves for driver and passenger plus I have a spare 'Kbus' wire which doesn't appear to be needed or used in the Z4. The next challenge will be to see if the cable lengths are acceptable, but as the X3 is not a tiny car I'm hoping it will be fine.
Feeling very positive that this could be a good way of retrofitting heated seats to our cars.
The main differences are that the X3 loom is in two halves for driver and passenger plus I have a spare 'Kbus' wire which doesn't appear to be needed or used in the Z4. The next challenge will be to see if the cable lengths are acceptable, but as the X3 is not a tiny car I'm hoping it will be fine.
Feeling very positive that this could be a good way of retrofitting heated seats to our cars.
Last edited by Fishy Dave on Mon Mar 14, 2016 5:07 pm, edited 1 time in total.
Corvette C6
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
- Marlon
- Lifer
- Posts: 10899
- Joined: Mon Jan 05, 2015 11:13 am
- Location: Lancs.
- Contact:
Re: Help please - wiring heated seats
This is looking very promising Dave, I'm getting excited - keep up the good work
Gone: 3.0si 2008 E85
911 997 Carrera S
-
- Lifer
- Posts: 5277
- Joined: Wed Feb 19, 2014 3:01 pm
- Location: NW London
Re: Help please - wiring heated seats
Good work
3.0si Sport: F10 Illuminated ZHP, Retrofit Cruise, OE Stubby, Gaptech RCH+, Kenwood BT73DAB + Handsfree, HIDs, LED Sidelights, OE LED Number Plate Lights, Custom LED strip bootlight.
- Marlon
- Lifer
- Posts: 10899
- Joined: Mon Jan 05, 2015 11:13 am
- Location: Lancs.
- Contact:
Help please - wiring heated seats
Hi MrPT,MrPT wrote:I've got the retrofit instructions: https://dl.dropboxusercontent.com/u/153 ... _seats.pdf
Could you check the link to your retrofit instructions please - I'm getting an error.
I need to print it off as we are hopefully getting nearer to a solution.
Many thanks
Gone: 3.0si 2008 E85
911 997 Carrera S
- Fishy Dave
- Member
- Posts: 917
- Joined: Sun Jul 05, 2015 8:01 pm
- Location: Wiltshire, England
- Contact:
Help please - wiring heated seats
Hi Colin, I downloaded them from MrPT so have emailed you a copy.
Corvette C6
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
Mazda RX-8 race car
Now sold: Z4M Roadster, the best all round car I have owned.
- Marlon
- Lifer
- Posts: 10899
- Joined: Mon Jan 05, 2015 11:13 am
- Location: Lancs.
- Contact:
Help please - wiring heated seats
Cheers mateFishy Dave wrote:Hi Colin, I downloaded them from MrPT so have emailed you a copy.
Gone: 3.0si 2008 E85
911 997 Carrera S