Originally Posted by scm6079

After getting nowhere with the dealer I purchased the car from, I reached out to my other local area Audi dealer (Chandler Audi in AZ)- who was absolutely awesome in providing help for what changing the seats would take. Total cost is high (expected) - but it is doable! Given the cost, I'm going to explore my other options first (local auto upholstery company) and see where I get - and then come back to this if necessary.

For those also struggling with this issue, here are the parts necessary to make this happen (both seats):

Part #, Description, Qty Required, Price Per
---------------------------------
8K0-881-905-A, Headrest, 2, $241
8K0-881-775-C, Padding, 1, $241
8K0-881-776-C, Padding, 1, $241
8K0-881-361-C, Padding, 2, $118
8K0-881-405-AA-WV2, Seat Cover, 2, $758
8K0-881-515-A, Frame-Back, 1, $671
8K0-881-516-A, Frame-Back, 1, $671
8K0-881-805-BK-WVZ, Cover, 1, $758
8K0-881-806-BK-WVZ, Cover, 1, $758

Total Parts: $5,578
Estimated Labor: around 12 hours @ $135/hr

For a grand total for both seats of around $7,500.

The biggest "risks" are potentially damaging seat heater coils since they are fragile; as well as coding issues when reprogramming seat control modules. Acceptable risks in my eyes at this point.

They also let me know that the bottom seat frames for the 2010 Audi A4 S-Line are identical - so the swap should be easier with those.

For now, I've build a seat cushion the length of the seat the exact width of the bottom to try and change the point at which my legs hit the side bolster. It "sort of" works. I think if I had the right density closed cell foam it may work - but I could only get open cell foam at my local fabric & upholstery store, which is still a bit too soft. I took a look at the Audi factory foam which is closed cell rubberized foam - which seems like what i need.

Sooo..... I suppose next steps are visiting the auto re-upholstrey company and/or searching the 'net for foam to build a new cushion. I may also study the part list more and see if I could rebuild just the seat bottom from the S-Line seats.

Originally Posted by scm6079

For now, I've build a seat cushion the length of the seat the exact width of the bottom to try and change the point at which my legs hit the side bolster. It "sort of" works. I think if I had the right density closed cell foam it may work - but I could only get open cell foam at my local fabric & upholstery store, which is still a bit too soft. I took a look at the Audi factory foam which is closed cell rubberized foam - which seems like what i need.