FL A8 seats upgrade

[peiiider]

Hello.

Got a deal off Ebay on a set of sport seats from Germany, matching color with my standard "Swing" interior.

Standard seats have heating, electric seatback and lumbar adjustment in the front, nothing in the back. New seats are fully electric front and heating+lumbar+headrest adjustment in the rear..

Physical installation I guess is no worries, it's the electric part I'm a litte confused about..

Does anybody know the extent of wiring to be installed ? Will ANYTHING fit from old to new at all ? I have access to wiring diagrams through elsa in my garage, but it's a pain going back and forth between the pages of new/old seats to see the differences...plus understanding what is actually inside the seat vs "car wiring"..

[IT]

Front seats would normally be a straight swap on a FL as they should all include airbags and rear footwell lights.

Assuming you're RHD, and these being from a LHD ? car though you will have to watch out for whether your new drivers seat has memory function, and airbag system may complain if the new passenger seat has no occupancy sensor, which I guess it wont have.

In the rear, again subject to you already having airbags etc, then its a fairly easy install but you'll need to supply some +12 into the rear seats for the lumbar / headrest to move. If you want the full oem look, you need to run a wire to the front for the headrest lowering switch too. Heating is a bit more complicated, but runs from the fuse box in the right hand side of the boot, into the switches in the back of the center console and back to the rear seats.

I'm assuming you've matched swb/swb or lwb/lwb as the recline angle of the LWB is different to the SWB and they seats wont fit properly without some mods in the rear if you mismatch.....

Edit: Just seen you're in Norway, so that the RHD/LHD bit covered, but I've left it in as advice to anyone else considering an import

[Adrian E]

Didn't you cover this install fully on your old A8 Ian? The silver one with S8 bits? Thread should be here somewhere....

[peiiider]

Thanks for the replies

I read the thread about the seat install, but if I understood correctly that car already had sport seats and the rear seats were the "top spec" individual version.. So I guess that was a more complex issue

But okey, the rear seats are relatively straight forward, at least as far as the seats adjustment part. Only need the new circuit from rear fuse holder. I think I will drop the headrest button in dash, kind of prefer the cupholder insted of one "useless" button and two blanks

I see in elsa that the heating switches are a few wires each, for temp and occupacy sensors plus supply and heating. Should be no problem.

But you mean the front seats should be a direct (electric) replacement from mine? I thought I saw at least two or three different power supplies for the sport seats adjustment ? Or am I wrong.. Can't imagine I have that many fuses installed for my seatback and lumbar adjustment now ?

I believe the new seats have memory, mine don't. Will they still work if I don't install the memory modules and switches ?

[IT]

All D2 seats are a single +12 supply to get the motor functions working, and the switchgear is all built into the seat so it works without modification.

Memory is a separate feed, but seats should work just fine if you don't wire it in.

The individual rear seats I did also had heating, which had to be installed from scratch as the donor car has simple rear seats, so everything you need to do, I did + more for that install....

[peiiider]

Yeah from reading the thread I believe you it was a lot of work with those individual seats Impressive project!

Is there any point trying to get a used oem wiring loom for the rear heating ? Or did I read somewhere that the wires go from the rear switches, all the way in front under the dash and back again ? If so i guess it's easier to just make my own

[Fredde]

Originally Posted by IT

Front seats would normally be a straight swap on a FL as they should all include airbags and rear footwell lights.

Assuming you're RHD, and these being from a LHD ? car though you will have to watch out for whether your new drivers seat has memory function, and airbag system may complain if the new passenger seat has no occupancy sensor, which I guess it wont have.

In the rear, again subject to you already having airbags etc, then its a fairly easy install but you'll need to supply some +12 into the rear seats for the lumbar / headrest to move. If you want the full oem look, you need to run a wire to the front for the headrest lowering switch too. Heating is a bit more complicated, but runs from the fuse box in the right hand side of the boot, into the switches in the back of the center console and back to the rear seats.

I'm assuming you've matched swb/swb or lwb/lwb as the recline angle of the LWB is different to the SWB and they seats wont fit properly without some mods in the rear if you mismatch.....

Edit: Just seen you're in Norway, so that the RHD/LHD bit covered, but I've left it in as advice to anyone else considering an import

Hello I have a lwb with the standard rear electric seats and I am swapping to sports electric seats from swb s8 is the difference in the seat base that moves or the actual cushion? What would the mods needed to make it work be?

[steamship]

Originally Posted by Fredde

Hello I have a lwb with the standard rear electric seats and I am swapping to sports electric seats from swb s8 is the difference in the seat base that moves or the actual cushion? What would the mods needed to make it work be?

According to the parts catalogue, the base section (#5 in the attached image) is different in the LWB model.

The part numbers for the SWB model are 4D0885305A (left) and 4D0885306A (right), and the part numbers for the LWB model are 4D0885310 (left) and 4D0885311 (right).

Solely based on what the parts catalogue shows, in theory it should just be a case of swapping the base section over... in theory.

[Fredde]

Originally Posted by steamship

According to the parts catalogue, the base section (#5 in the attached image) is different in the LWB model.

The part numbers for the SWB model are 4D0885305A (left) and 4D0885306A (right), and the part numbers for the LWB model are 4D0885310 (left) and 4D0885311 (right).

Solely based on what the parts catalogue shows, in theory it should just be a case of swapping the base section over... in theory.

Thanks a lot i didn’t even think about checking the catalog.