S4 seat swap - D.I.Y.

[Aris3.2]

So finally no more rain here in Jersey...Here’s a few pictures of my new (to me) seats.

[JayFunk]

Question. Looking into picking up a Allroad soon and hopefully swapping seats such as most of you have here. I see S4 seats swapped but have others don't other audi seats? Looking at the S7 seats if not the whole set, just the fronts. Wondering if anyone has tried those and if they would just bolt in like the S4 seats. Thanks for all your help!

[eljay]

Question. Looking into picking up a Allroad soon and hopefully swapping seats such as most of you have here. I see S4 seats swapped but have others don't other audi seats? Looking at the S7 seats if not the whole set, just the fronts. Wondering if anyone has tried those and if they would just bolt in like the S4 seats. Thanks for all your help!

Those should work too.
Take a look at the Allroad thread in the Avants section. I recall someone fitted those into an Allroad.

[Aris3.2]

Out of curiosity all of you who have switched the back seat as well what exactly you do to make the donor seat to fold down you switch the key lock from your old seat to the donor seat?

[eljay]

Out of curiosity all of you who have switched the back seat as well what exactly you do to make the donor seat to fold down you switch the key lock from your old seat to the donor seat?

Yes, you can switch the piece that has the lock and latching mechanism if you want to retain the locks.

[Aris3.2]

Did you do it eljay?how easy it was to detach the whole latching mechanism?you can access it once the seats are out from behind and unscrew it from underneath?

[eljay]

Did you do it eljay?how easy it was to detach the whole latching mechanism?you can access it once the seats are out from behind and unscrew it from underneath?

You need to remove the leather cover and cushion at least from that corner and there are two triple square bolts if I remember correctly.

[JayFunk]

Those should work too.
Take a look at the Allroad thread in the Avants section. I recall someone fitted those into an Allroad.

Thanks a bunch!!

[PhillipAtwood]

Here’s an odd one guys... I have an 11 Q5 w power non memory non heated seats. I got a donor set of sport seats from an s-Line 14 Q5 from the salvage yard w heat, thigh ext, and I think memory. Do I need any extra wires to make the heat work? Or are there wires already there for heat but they just need to be pinned into connectors?? Thanks!!

[Smac770]

Do you have the green 6-pin socket in the floor for the green 6-pin plug to plug into? On that socket, see if any of the positions actually have pins in them. If so, is pin 3 grounded? I don't know why they would run the wiring for a function not in the car; VAG will break their signature AWD system to save some micropennies; I can't see them giving away free copper. Does your climate controls even have the heated seats buttons?

[hardfive]

Swapped my front seats and swapped the air bag connectors Avantagg mentioned as I went from b8 seats to b85.
getting airbag errors on both seats
Checked all wiring its good. Nothing is ever easy...
Anyone have any thoughts?

2 Faults Found:
9440027 - Driver's side; side-airbag igniter
B100B 1B [137] - Resistance Too High
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 185390 km
Date: 2020.06.28
Time: 15:08:21

9439771 - Front Passenger's Side Airbag Igniter
B100A 1B [137] - Resistance Too High
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 185390 km
Date: 2020.06.28
Time: 15:08:21

[eljay]

I would double check the wiring again and also check that wiring on donor seats is not damaged.

Caution: never try to check the resistance on any airbag connector! You don't want the airbag to go off on you.

[hardfive]

I would double check the wiring again and also check that wiring on donor seats is not damaged.

Caution: never try to check the resistance on any airbag connector! You don't want the airbag to go off on you.

Triple checked everything. No nicks or cuts anywhere.

Only real issue i noticed is blue and black wire wouldn't lock into the driver plug until I pushed the internal clip "closed". Maybe there not making good contact? Brown seemed to lock into place when I pushed the wire into the connector. Not sure what to do there though as no amount of force could get the blue or black to "click".

Has anyone ever replaced the car side of the b8 airbag plug? My plastic clip on the passenger has a crack. Seems fine but since its an airbag, and Im having the errors I might replace it.

[eljay]

I can't recall the connector details on mine, but ues, if you have a couple of areas (wire not secure in the connector and cracked housing) that are iffy, fix those first.

The only other things that would cause that would be faulty module or blown airbags and those seems very unlikely in your case unless you got the seats from a very shady source.

[Smac770]

Should be 8J0 972 586, https://audi.7zap.com/en/usa/audi+a4...971-971082/#31 (this is the left side harness, 28-31 are the sockets that go into the floor holder. Click on the photo icon on the row for part 31.

[Iceman502]

For future reference, I had a pair of B8 A4 seats out of a premium plus with the memory function. I swapped out the passenger side recognition module and the driver's side memory module into a pair of B8 S4 seats as shown on the original write up. All controls worked, but the memory function on the driver's side did not.

To fix this, I didn't swap the harness, but instead the driver's side control button modules themselves. 4 screws hold in the panel that holds the two modules. That entire panel can be switched over to the S4 seat, and then your memory function will work again.

[Mister W]

Anybody who swap seats got a 02095 code for component protection? Did the swap today, plug N play. Everything was fine , memory seats working the first attempt. Work on them , cleared the codes and then memory function doesn,t work anymore and i got the component protection code on driver seat module.
Anyone fixed an issue like that?

[A4 Centaur]

You gotta go get the CP removed at the dealership.

[Smac770]

Or put the original J136 from your car from under the driver's seat into the new seat now in your car. Then the J136 is unchanged and no more component identification problem. Would be the 8K0 959 760 D box under the seat: https://www.ecstuning.com/b-genuine-...ft/8k0959760d/

[nudavinci64]

Anyone know if for the memory seats if you can bench test them or run them direct to 12v? I am testing a test of memory seats and the driver worked for a few minutes than stopped. Only lumbar works and now the seat is stuck in a funky position.

From what I gather even if CP kicks in the seat should still work but if installed in the car you would get some error codes etc. Is there anyway to test the seats without being mounted in the car? Not sure if CAN hi/low being disconnected or the memory not having any signal is possible causing the module to "lock up" for some reason.

If you can not do this I am considering the note on swapping the memory to non memory if possible. I do not like the idea of having to get non memory harness, switches (no longer have previous seats).

[glennda5id]

Anyone know if for the memory seats if you can bench test them or run them direct to 12v? I am testing a test of memory seats and the driver worked for a few minutes than stopped. Only lumbar works and now the seat is stuck in a funky position.

From what I gather even if CP kicks in the seat should still work but if installed in the car you would get some error codes etc. Is there anyway to test the seats without being mounted in the car? Not sure if CAN hi/low being disconnected or the memory not having any signal is possible causing the module to "lock up" for some reason.

If you can not do this I am considering the note on swapping the memory to non memory if possible. I do not like the idea of having to get non memory harness, switches (no longer have previous seats).

I am having the exact same issue. They stopped working just after I got them bolted down. To get them unbolted, I had to remove the black harness that goes into the J136 module and manually power each motor to get the seat into a position where I could unbolt the seat. My next step is to wire these into the canbus and see what VCDS says.

[Eclipsegst97]

so to confirm..
my car has no memory, and I only want to replace the drivers side.
Driver side has no module ( black box)
Donor seat has a module

I should take out the module and wiring per pic #9
and the directions:
"For those of you without the seat memory option, you will need to remove all of this
- side of the seat control panel and the attached harness
- Don't let this scare you it is very simple and east to do"

Can any one confirm for me? that black box is the seat memory module ( Seller told me this driver seat they sold me had no memory)

[AutoUnionNH]

Just a quick note of thanks for this thread! Yesterday I swapped in a set of 2011 S4 Black Nappa leather memory seats into my '09 Premium (non memory). The swap went without a hitch - no faults or problems. I started with the passenger seat, removed the original seat, exchanged the seat recognition modules, installed the S4 passenger seat in the car and everything went well when tested (no faults). Next I pulled the drivers seat, removed the memory module and control side panel with harness from the S4 drivers seat. I did the same for original non-memory seat - removed the side panel with controls and harness and then installed this panel and harness in the S4 seat. This too went without a hitch (no faults).

The only thing to note was on the red connector of both seats there are two wires going up and into the seat frame to the rear floor light - a brown wire and black / green striped wire. I found it easier to simply remove the wires from both seats red connectors rather than removing the light and it's wires from the seats. After unpinning the wires from the red connector, I reinserted the wires into the swapped in harness red connector on the drivers S4 seat.

All in all, a 2 banana job !

[kt883]

can you swap a seat without memory seat into a car that has memory seats? Just swap exiting module into the new module-less seats?

looking to install S5 seats without memory into a B8 with memory


Also does it matter B8 vs B8.5? so putting B8 seat into B8.5?

[Smac770]

The wiring in the seat harness is different for with (3L4) vs without (3L5) memory. Power goes directly to the controls and then to the motors in 3L5. In 3L4, the power goes to the control module and then on to the motors, with separate status lines to the controls. So the wiring harness is different and the seat controls part is different.

Only issue that jumps to mind B8.0 vs B8.5 is the side airbag plug changed. So either change the plug on the seat to match the socket in the car, or vice versa.

[Imnsonias]

Parts located. If anyone else encounters this issue the female seat side of the connection is PN 8J0972576 - $8.07 each from audiusaparts.com

Will depin B8.5 S4 connector on seat harness and repin this B8 connector saving the oem harness on my B8 sport seats. Thanks for the suggestion @a4centaur!

Does anyone knows how to de-pin this connector properly?

Apparently Looking from inside the plug, there is no space to insert a special tool to release the pin locks.

Is the orange part useful for the release process? It is possible to remove it completely, but then there is almost no space to reach the terminal locks.

Should I remove it totally or only partialy to proceed with the release of the pins? Has anyone been through this?

[glennda5id]

See this youtube video
https://youtu.be/tKLCfRjEsQE?t=127

[Imnsonias]

See this youtube video
https://youtu.be/tKLCfRjEsQE?t=127

Thanks mate!
Nevertheless I am referring to connector different from the ones shown on the video.

I also tried searching on YouTube for some tutorial but coudn’t find any related to de-pin this specific connector. Though one lol

[Smac770]

The orange secondary lock clearly has to come out. After that, you'll just have to see what you're left with.

[Imnsonias]

I did it but the space left to reach the pin locks is very restricted.

Is there any specific special tool to reach them from this side?

[Smac770]

No, I don't find anything in the docs that would enlighten regarding that connector. It looks like the one with the two connected lines has to come forward first to release the hook off the front of the housing.

This lists a lot of plugs, but not the one in question. https://audi.snapon.com/FileServerRo...on%20Guide.pdf

You might call the dealership and ask them if they can ask a tech how to depin that plug.

[Imnsonias]

No, I don't find anything in the docs that would enlighten regarding that connector. It looks like the one with the two connected lines has to come forward first to release the hook off the front of the housing.

This lists a lot of plugs, but not the one in question. https://audi.snapon.com/FileServerRo...on%20Guide.pdf

You might call the dealership and ask them if they can ask a tech how to depin that plug.

Great Post Smac770! Thank you!

I have tried several things now:
1) Some people say that these plugs are not supposed to have a way to remove the pins
2) Other say that these pins are released from the back
3) In a Dealership, each line, already pined (on both sides), with the needed male golden pins cost around 20Eur (!!!!!)
2) Each yellow plug (with no pins) costs around 7Eur

I will still try to release the pin's lock from the side (or back), with a very tiny tool. I will let you know if that worked later on.

If not, I will probably cut the lines, get the correct male pins (most difficult task), new yellow plugs and with all that, rework the wiring to an OEM condition.

Thank you for all your help,

[AudiEX]

I bought seats S5 B8,5 and apparently the modules are missing.

can I make them work with the existing wiring and controls?
I have to change all the wiring and controls?

[AudiEX]

Hello,
can someone tell me what is the correct wiring for the conversion to seats without seat memories?
Thanks

[Smac770]

What are we working with here?

What is the year of the S4? And if it's "2012", is it B8.0 or B8.5.
What year did the "new to you" seats come out of? Primarily a concern for the airbag plug, which changed between B8.0 and B8.5

Your original seats. They are driver side / passenger side:

standard seat, sport seat, comfort seat, or S sport seat
manual adjust or power adjust or power adjust with memory
no lumbar or power lumbar

These new seats. They are driver side / passenger side:

standard seat, sport seat, comfort seat, or S sport seat
manual adjust or power adjust or power adjust with memory (ignore the missing module, what are they meant to be)
no lumbar or power lumbar

[AudiEX]

The airbag issue does not interest me, the seats are from an Audi S5 B8,5 2013 and are fully electric

another switch and another wiring is needed, right?

[Smac770]

"another switch and another wiring is needed, right?"

Are needed for what? What are you trying to accomplish? Are you trying to convert a power with memory seat to a power without memory seat? Yes, you'll need different control panel and a different seat wiring harness.

[AudiEX]

Yes, that's what I'm asking.

is there any code for the wiring without module for memory seat ?
Thanks

[Smac770]

Was the car originally configured with memory or not? Questions I asked but answers refused.

If the car was configured originally with memory, then the car will be looking for the memory control module. So you'd need to tell the car it's not installed. Take the 36 seat mem drvr out of the installed modules list in the CAN Gateway (19). I don't know if you'll need to adjust any coding of the 42 driver's door control module. I'd look for posts on retrofitting memory and consider the reverse of the actions that were necessary. The memory system also involves the mirror positions. The main wonder will be the airbag control module. Will it need any adjustment to be told the seat position sensor is no longer present, or is that present on the seats even without memory. But review a DIY for adding memory, see what adjustments were necessary in any control module coding/adaptation/basic setting beyond the installed modules list change.

But why not just move over your J136 from your old seat.

If the car was not, then there's nothing to do with the car. You just need to get the correct controls and wiring arrangement within the seat bottom.

[AudiEX]

the car does not have Module and memory seat.
so I will need other controls and wiring.

are these ok ?
https://wolfautoparts.com/seat-wire-...LQHwjAiTD-UBOM

https://www.ebay.co.uk/itm/204090358...3ABFBMosX-x_Ng