W205 C63s AMG Sport Seat Stand Alone Retrofit

Craigo1979

New Member
Joined
Mar 5, 2021
Messages
2
Location
Melbourne
Car
GLE63s
Hi Guru's
I Have a pair of W205 Seats from a 2016 Mercedes C63s I would like to retrofit to a stand alone hotrod application!
The Seats came with the seat control unit but this is all.
I do have access to the door switches and wiring loom if needed.
All i would like to have working is the electric seat adjustment. The seat switch, heater (if it has one) or memory settings do not need to function.
My questions are:
Has anyone or is it possible to have these seats to be completely Stand Alone on their own system?
I have read many threads talking about retro fitting them to earlier model Mercedes but never to another brand of car or hot rod applications.
WHAT I HAVE READ is that you need the door switch but is this all i need?
Do i need the door control unit or even the BCM?
Would i need to do any recoding for a stand alone application?
As the switch unit is only 3 wire i am assuming that they would be CAN communication to the seat controller but i am unsure whether we can just use the door switch module and the controller and if they talk to each other alone or if they need to pass through the BCM as a different signal?

I have also thought of just using switches for all functions but i would ideally like to have the factory switches and not have to modify the seats.
Any experiance or advice would be much appreciated.
PLEASE HELP!
Pick for Attention
1616648004326.png
 

Hectors Dad

Active Member
Joined
Oct 10, 2016
Messages
108
Car
E220
Hi Guru's
I Have a pair of W205 Seats from a 2016 Mercedes C63s I would like to retrofit to a stand alone hotrod application!
The Seats came with the seat control unit but this is all.
I do have access to the door switches and wiring loom if needed.
All i would like to have working is the electric seat adjustment. The seat switch, heater (if it has one) or memory settings do not need to function.
My questions are:
Has anyone or is it possible to have these seats to be completely Stand Alone on their own system?
I have read many threads talking about retro fitting them to earlier model Mercedes but never to another brand of car or hot rod applications.
WHAT I HAVE READ is that you need the door switch but is this all i need?
Do i need the door control unit or even the BCM?
Would i need to do any recoding for a stand alone application?
As the switch unit is only 3 wire i am assuming that they would be CAN communication to the seat controller but i am unsure whether we can just use the door switch module and the controller and if they talk to each other alone or if they need to pass through the BCM as a different signal?

I have also thought of just using switches for all functions but i would ideally like to have the factory switches and not have to modify the seats.
Any experiance or advice would be much appreciated.
PLEASE HELP!
Pick for Attention
View attachment 110965
Hi Craigo,
Setting the fully electric seats up as a standalone system can be done - I did it when I was halfway through retrofitting fully electric and memory seats. I needed to be able to adjust the seats before I could get them coded in.
Normally the adjustment would be sent via CAN, through the door control module to body control module and then to the respective seat motors.
If you can find a set of seat controls that are analogue, actually have 1 contact / wire per function (like seat back up or down), then you can just take a 12v feed and earth to supply power to the switches which will then supply power to that particular motor when activated with the switch.
Here's the best bit, I've already done the hard work for you - I used Land Rover Discovery 2 seat switches.
You then just need to check which wires do what (easy with a multimeter) and you're good to go.
 
OP
OP
C

Craigo1979

New Member
Joined
Mar 5, 2021
Messages
2
Location
Melbourne
Car
GLE63s
Hi Craigo,
Setting the fully electric seats up as a standalone system can be done - I did it when I was halfway through retrofitting fully electric and memory seats. I needed to be able to adjust the seats before I could get them coded in.
Normally the adjustment would be sent via CAN, through the door control module to body control module and then to the respective seat motors.
If you can find a set of seat controls that are analogue, actually have 1 contact / wire per function (like seat back up or down), then you can just take a 12v feed and earth to supply power to the switches which will then supply power to that particular motor when activated with the switch.
Here's the best bit, I've already done the hard work for you - I used Land Rover Discovery 2 seat switches.
You then just need to check which wires do what (easy with a multimeter) and you're good to go.

Thanks for the insight!
Yes I think that will be the way i do it!
Having to use and buy the door module and the BCM module to have it all working sounds like that it would take far too much time and effort!
Just out of interest the Disco switches are rated to supply the motors enough current?
 

Hectors Dad

Active Member
Joined
Oct 10, 2016
Messages
108
Car
E220
Thanks for the insight!
Yes I think that will be the way i do it!
Having to use and buy the door module and the BCM module to have it all working sounds like that it would take far too much time and effort!
Just out of interest the Disco switches are rated to supply the motors enough current?
Well, the switches are designed to do exactly the same job on the Disco.

If you want an easy solution, I still have the disco switches, both sides, all working and fitted with the correct plug housings (and possibly correctly wired for your seats although they are currently wired for E Class AMG seats). This would create a plug and play solution (you would need to choose a way to mount the disco switches though).
Shipping to Oz shouldn't be too bad.

Can't send you PM as you are too new to the site.

Si
 

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