Thats what i was asking before. Can the seat module get coded to my car? The amount of strange issues is sort of absurd. Simple seat swap.

Yeah it's kind of shitty but I can imagine it can be coded to your car. Either way hoping you are enjoying the seats!

To be honest I never use the memory function on my seat unless I am just done cleaning my interior out, but if you are throwing other errors that's weird. I'm sure it's not a fault in the seats themselves though

Which is strange. I have put my fronts back in, and boom no errors. Everything back to normal.

I have taken these seats out 4 times now. They will stay in for now. Trying to sort this bs out before spending money.

Seats are strange after nearly 3 years in the comfort seats. I like how they feel though. Looks nice thats for sure.

I read that the seat module might actually store crash data. And as we all know, ttgtr was smashed. The SLS message is clearly just that, my air susp operates just fine, so its just sending a message. There is a huge possibility that i need new seat modules. Which would suck. I cant even figure out how to take that plastic trim off.

Are you using the seat belt tensioner from the new seat or from your old seat? The pretension in the seat of the crash car might had gone off and should not be used.

Where is the tensioner. I thought that was in the belt, not seat. I guess in the seat. I did not pull anything out of my seats. Any idea where the pretensioner is? Is it the buckle. Makes sence. I didnt even thing of that, and my friend suggested I change the buckle out.

A friend that has a body shop just stopped by. He brought his inpa with him. The seats are bricked. The tensioner code that keeps going off cannot be cleared. He said i will most likelly need to replace all the modules in it. How crazy is that.

I'm not 100% familiar with the difference in e53 seat control modules...but is the seat control module designed the same in the comfort & sport seats? If yes, then remove the seat control module from your comfort seats and swap it with your new sport seats. Instead of pulling the whole seats in and out...just swap the driver's seat control module that's mounted in to the plastic seat cover (surround).

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looking at the part database diagram & finding an image of the comfort seat control module...then at the driver's seat switch in my X5 which just has the regular seats with lumbar...looks like the e53's comfort seat switch is different than the switch for the seats that don't have the upper articulating back & electric head rests. There appears to be an extra little button built into the main seat control module that has 4 arrows on it (headrest up/down + articulating upper back section forward/backward). This is not how the e38/e39 driver's seat control module is designed...the upper articulating back on those models has a separate switch that controls that function. :(

http://c1552172.r72.cf0.rackcdn.com/232494_x800.jpg

But I still wonder if you can use this switch anyway...if there's no wiring harness for the electric headrest & articulating upper back...that shouldn't stop the seat memory and the other seat movements from working. I'd still give it a try...and see if the module from your comfort seats will retain their memory when installed in the new sport seats. Its just that the headrest and upper back won't be electrically activated anymore. :)

The seat belt tensioners have an explosive charge that goes off in a crash that keeps the seat belt pulled tight to prevent the passenger from moving toward the dash. So if the seats came from a vehicle that was in a crash...as mentioned above...you may need to use your old tensioners as well as swapping over the seat control module. Find out if the SRS/MRS system was fully functional in the X5 that you got your seats from...and if no one was sitting in the front passenger seat...then that explosive shouldn't have gone off...and only the driver's side needs to be replaced. If the SRS light was on in the crashed X5...then the front passenger seat belt tensioner went off as well regardless if someone was sitting in the seat...so that one needs to be replaced as well.

Pulling the entire seat is actually easier than getting that module out. 5 16mm bolts and 1 wire harness. I can swap them in 5 min now. That module has a million clips, which im afraid of breaking. Well the cover at least.

What im still confused about is the SLS message i get in OBC when the new seats are in.

I am also amazed at how much crash memory the seats store. I guess I have no choice but use the crap from my seats, at least to test. For now, my comforts are going back in. No time to mess around right now.

This sounds like how my projects go. Start simple, end up with days of nonsense and headaches. Let us know how you get it sorted. Cheers.

Tensioner is in the seat belt buckle assembly. But if you have issues with that, you should get SRS (airbag light) warning. Try unplugging the cable connection to the seat belt buckle. There are two. Connection at the hub of the seat belt assembly and another one that connects to main seat connector.

I recently replaced comfort seats with sport seats. Only error I got was the occupancy sensor message from passenger side. Since my X is 2004 and the seat were from 2006, design of occupancy sensor has changed so I couldn't use one from my X. I just ended up disabling this feature from Scanner 1.4 to eliminate the message. Besides that, everything worked perfectly, including memory functions.

I don't have air suspension (well just the air bags in the rear) so I couldn't tell you about the SLS. :dunno:

So what are you gonna do with the comfort seats?