DIY Seat Brackets B6 Recaros into B5

[Speed4Avant]

I couldn't find a lot of information online on how to built seat brackets after purchasing my b6 s4 recaros early this week. I was able to find a digram and modified it to better fit and make install easier. Follow at your own risk.

Materials Needed for one seat bracket:

Steel tubing 1/8" Thick (11 gauge): 2 feet 1" x 2", 2 feet 1" x 1"
2 x (M12 x 30mm bolts)
2 x (M12 x 40mm bolts)
4 x M12 Washer
4 x M12 Locking Nut

Grinder wheels, assorted drill bits.



Here is the original diagram, it was such low quality you could barely read the dimensions. I cleaned it up.



Based on the diagram I decided to use rectangular steel tubing. For each seat I used about 2 feet (~19.625") of 2" x 1" Steel Tubing 1/8" Thick (11 gauge) and 2 feet (~22.125") of 1" x 1" tubing of the same thickness. The rectangular piece bolts into the front with the two original 6mm allen bolts, the square piece slides into the b5 seat rail and then the b6 seat rail bolts on top of it.

I used an angle grinder to do all the cutting and cordless drill to make the holes. Each bracket takes a couple hours to make.

Nearly finished bracket next to uncut steel tubing:


Dirty Workshop:


Finished Bracket:


Finished Bracket #2:



Finished Bracket #3:

http://i.imgur.com/EBwQw9d.jpg

Access Hole for Allen Bolts (cut with angle grinder)



Measurement #1:



Finished Bracket #4



Access hole and oval-ed hole for rail bracket:



I oval-ed the holes on the rail bracket to allow slight side to side adjustability before bolting the seat down. I also oval-ed the holes for the front allen bolts.

Measurement #2



Measurement #3



Measurement #4



Measurement #5



Top View:



Side View:



Underside View:



Mounted front Bracket:



Mounted Seats:





Directions for Mounting:

First test fit the front bracket and determine which way it needs to be facing. The bracket is pushed further right/left depending on which way it is turned. Next bolt the front bracket to the b6 seat rail. Use 2 of the 30mm M12 bolts. I'd advise getting allen head bolts as the hex head were kind of hard to tighten.

Next slide the back bracket into the stock b5 seat rail. Move seat into car and line up allen holes with front bracket. Loosely tighten front bracket with the 6mm allens.

Next line up back bracket by sliding it on the rail. Use the 40mm bolts to bolt it in with the nut side facing down. I had to shorten one of my bolts to fit.

Ensure that the seat is in the best position then torque all the bolts tight.


Wiring info:

The b6 recaro seat uses a 4 wire seat belt sensor while the b5 uses a two wire. I decided to not connect the seat belt sensor.

The b6 seat uses a dual stage airbag while the b5 uses a single stage, I decided to not splice the yellow airbag plug. I believe you can use resisters to get rid of the air bag light.

I cut the connectors off the b5 seat and match up the wires on the green and red plugs. The b6 seat will have extra wires you don't need to use along with an extra black plug.


Let me know if any information needs to be changed to improve this diy.

[jibberjive]

Nice writeup.

[erykv1]

awesome. thanks for sharing.

not many people do this anymore... the other day I saw someone selling "brake pad sensor deletes" on the FB owners group. like really? two wires tied together, lol.

[alphaVR]

Could someone verify these measurements for me? Want to be sure they're right before I send them over to a friend who can build these for me. Thanks!

FrontBracket by Tony Bozeglav, on Flickr

RearBracket by Tony Bozeglav, on Flickr

[getslideways]

Thanks for sharing! Definitely useful

[MojoMagic]

Did it make the seat sit higher?

[ActiveMonkey]

Did it make the seat sit higher?

I'd like to know this as well. How does the seating position feel?

[christianb5s4]

To follow on from that question, how do these seats impact rear seat leg room?

[wpfahl]

Thank you for the plans.


Sent from my iPhone using Audizine

[brandon91891]

Did it make the seat sit higher?

Bump I’d like to know as well. I want to sit the same or lower as stock seats.


Sent from my iPhone using Audizine

[broadmargin]

The seats will sit lower and you can move them further back. This is from my own experience. Though i put S5 seats in my S4.

Edit: Specifically, they sit 2" lower and can move 2" further back. But you lose 3" of forward movement. So if you are short, i don't recommend it.

[armageddon-]

You had full electrics seats before right?

Because "normal" b5 seats are fixed on the middle front by a "spring" opposed to the full electrics that are fixed with two bolts.