E60 comfort seat retrofit

zaleonardz

Well-known member
You could do that, but its going to be messy..

I would guess you would need the seats, and the center switch console as that interprets the lin bus signals.

The seat switch, even though it is on the side of the seat does not wire up to the seat module, it wires to the central switch on LIN and that converts the signal to the module via CAN.

THus possible, but not that easy
 

msm

Well-known member
Mo5005 said:
is it possible to retrofit these seats in any car besides a bmw? id like to put these seats in my volvo since the bolt holes line up perfectly.

any advice would be greatly appreciated!

Out of interest, what Volvo do you have? Some Volvo XC's have superbly comfortable seats.
 

Icekallt

New member
awesome work you did!

do you have an pre-lci or a lci? and do you know if there is any massive diffrence between the seat systems for the comfort seats for the pre and lci ?

Cheers
 

zaleonardz

Well-known member
Pre LCI.

Central gateway is different, but everything should be exactly the same....

The tricky part is finding the LIN cut in..
 

Icekallt

New member
We have encountered a wierd thing we have both seats in the car with power and can high/low and both seats are acting lika a drivers seat. And we cant manage to find the bfs module that is passenger seat module. Any ideas?
 

zaleonardz

Well-known member
Was a couple of years ago. But memory says that the left hand side seat has an additional ground to identify it as left.

Look on your wiring diagrams. And of course dont forget the lin bus driver cable to the centre switch console or you will get both seats to work over can via inpa or something. But the actual switches on the side of the seat want power ground and lin

Cant remember exact specifics but wiring diagrams are your friend

Sent from my SM-N960F using Tapatalk
 

bedny22

New member
zaleonardz said:
Oh my frikken hamster......

I do not actually believe this.

Firstly, a serious big up to Hugo for driving out and bringing me some bits, it assisted with the coding.

The reason why the coding on this car was such a flippen bitch is because my car had the latest firmware flash from the dealership, meaning that a great deal of the stuff available on the net just simply would not code the car.

I have NOT been able to make these seats work, the primary reason for that being, is that I am a moron and simply do not read wiring diagrams that I have stared over 1000 times.

Firstly, I figured that it was because the VIN numbers on the seat modules were differant to that of the main bus forcing them not to work.

This is where winKFP came in, and I finally, but finalllllllly managed to code the modules, and now the VIN numbers are matching, but guess what it still does not work.

I then started reading some docs I got from hugu, and pouring over wiring diagrams, here is the clincher.

You know the seat switches, that sit on the side of the seat, one would make a logicial deduction that those buttons go to the seat modules, right.... WRONG......

I mean, I can read/move the seats in INPA, but they just wont work on the buttons, surely I did the wiring correctly, and it HAS TO BE a coding issue.... right... WRONG....

The flippen seat switches are a seperate module, that you need to integrate into the LIN bus, using the YELLOW seat connector, and not the black connector that goes to the seat module, but rather the yellow plug that holds the seatbelt pretentioners ect.

This is actually then wired, with seperate power, to the SGM, or central gateway module, which is basically the switch box in the middle of the car that holds the PDC button and stuff....

So lets recap.

1. Black 8 pin plug, takes +12v and neg, it takes CAN_H and CAN_L (yellow and black) This will make the seats work in INPA. NOTE there is NO differance between the passanger seat and front driver seat modules, the passanger seat only has one additional negative that the drivers does not have.

2. Yellow big assed plug, all your exisitng sensor wiring, but you need to add in another 12Vdc and 2 negs, plus a k-line wire that runs from pin 3 of the SGM.

Seat switches run over the SGM.... as is clearly pointed out in the wiring diagrams.....

Therefore... I have comfort seats, with working memory......

THanks again HUGO !!!!

Hello Zeleonardz, First of all i want to thank you for this post, i am going to attempt this retrofit and now i feel more prepared than ever :) But I have just one question, i looked into diagrams etc. Why did you choose to connect the CAN High and CAN Low (yellow and black) to the radio connector ? If I understant correctly it shoud be possible to connect it to middle connector in the centre console switch unit (pin 12 and 11 ) (the one with the DSC and set heating buttons) since you have to connect K- bus in the same connecrt on pin 3.

I would rather pull all 3 cables can+- and k - bus from one connector. What do you thinks about this ?
Sorry for my english and thanks !
 

bedny22

New member
billionairebum said:
Are Comfort seats that much more comfortable than the regular E60 m sport seats?

Hi, I have the most default leather semi electric seats without heat and its night and day difference ! I dont even care about the heating but the comfort seats are much much more ergonomical and comfy. For me the biggest difference is that you can move top half of the back portion of the seat so you have your back supported, the lumbar support and you can adjust the sides of the seat to hold you more in place...

The default seats are joke after you ride with someone who has the comfort ones :D It feels like you are in the 7er :)

managed to buy front comforts for 200Euro so I could not pass :)
 
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