nick9080

Hello i bought front seats out a c55 figuring it will work. i ran into the problem of the computer under the seats is diffrent. diffrent harnesses. anyone have any suggestions.

1qikctr

cut and reconnect all the wires.

nick9080

I was thinking that but the car I'd under warranty and don't want to void it I was thinking of using the wire connectors to connct the wires without cutting them do you know if all the wires are the same just differnt computer

1qikctr

Pretty sure its the same format, do what you have to do make it work.

freeb1703

were you able to complete this? I’m also looking to put C 55 seats in my C 32. I’m curious if you figured out how to do it with her via rewiring or just swapping the cushions?

Socal Sam

Swap track runner over to C55 seats. The critical part is going to be passenger seat occupancy sensor which is different. Be careful not to horse around with the bottom seat cushion. Sensor pad is somewhat fragile and can break contacts which is why the fail.

freeb1703

but what about the electronics? Still have the issue the control modules for the seat adjustments is different between the C55 and C32 seats?

Socal Sam

Yes, all that has to move over. Power adjustment connectors should be the same so may be usable with C32 module. The only tricky part is going to be passenger seat sensor pad. Mercedes changed the design mid production because of breakage.

freeb1703

sounds good! Makes sense! So my connectors between the C55 seats and my C32 seats aren’t the same. Did you happen to do this job before? Do you happen to know what wires should be spliced and connected to make the C55 seats work?

Socal Sam

Sorry, I have not done model to model seat swap, just like to like swap and a cushion assembly swap. I've tried taking covers and foam off the frame but that is risky as the cushions and covers might not go back on the same, at least in my experience. This being said, best case scenario would be to swap foam and covers cover and keep all C32 electronics and SRS sensors. Splicing connectors in is doable but you will need wire diagram and the splices better be damn good because the wires will move when seats are moved. For jobs I am not familiar with, the best was is to find a self serve junkyard and practice taking apart a seat. When I had my E430, this is my failed seat swap attempt. (I eventually got it right.) I could not get the seat bottom cover and cushion to reinstall.

freeb1703

Got it! That’s helpful! So you think I can’t keep the same seat sensor in the bottom cushion? How hard was swapping the back rest and head rest cushion?

BF_JC230

FWIW, and not sure much as it’s apples and oranges - but folks over in the w203 non-AMG section have fitted w204 C63 seats into their w203s…might be worth searching and checking out to see if you can learn any thing…especially with cross compatibility and wire splices/changes.