Avant Rear Brake Upgrade - Rear Brake Porn by request

[Lars Erik Johannesse]

You will see the bolt hole here will not fit.

it must be the caliper.


so, someone have a part number for the correct caliper from a audi s4 4.2 B7 ? my family album not going so long.....
or maybe a webshop i can order these parts

[twoqu]

Double check your parts against the list in the post above yours. The letter is very important!
For example 8E0 615 425 is a brake carrier for 245X10mm disc!
Perhaps a pic would help as I am not sure where the problem lies. Do you mean the calipers will not bolt up to the bracket or that the bracket won't bolt up to the hub carrier.
Either way sounds like incorrect carriers or calipers.

[Lars Erik Johannesse]

now i`ve bought following parts;

carrier ;
8E0 615 425

Calipter ;
8E0 615 423 /424

disc ;
8E0 615 601 R

But its something wrong here, the caliper will not fit on the carrier, its about 2cm missing to the bolts.

i have read somewhere i can use the brakedisc Ø300x22 without reduce them to Ø280 on avant/sedan.

Someone can give me correct part number for caliper to use on the carrier ? i can post picture if someone not understand what i`m meaning.

[M_GORDON]

I´m already waiting to make the upgrade...
I haven´t money but it isn´t too expensive, not?

Part Number	Qty	Description	  Retail	Notes
--------------------------------------------------------------
8E0615423C       1 	NS CALIPER        172.90	Silver
or
8E0615423F       1 	NS CALIPER        134.71	Black

8E0615424C       1 	OS CALIPER        172.90   	Silver
or
8E0615424F       1 	OS CALIPER        134.71   	Black

8E0615425B       2 	CARRIER            73.73 ea	Silver
or
8E0615425E       2 	CARRIER            73.73 ea	Black

N91036902        4 	BOLT                1.75 ea

8E0615601R       2 	BRAKE DISC         43.80 ea

[I]4B3698451        1 	BRK LINING         48.31[/I]*1
[I]
[B]8D0615611B       1 	NS B5 RS4 SHIELD   59.87
8D0615612C       1 	OS B5 RS4 SHIELD   59.87[/B][/I] not necesary
N90444601        4 	SCREW               0.30 ea
[I]
8A0609721AD      2 	B4 HANDBRAKECABLE  20.40 ea[/I]*2

*1 = If I have metallic line, I can use it, not?
*2 = How I can do it without they??


Well, the cheapest is:

Part Number	Qty	Description	  Retail	Notes
--------------------------------------------------------------
8E0615423F       1 	NS CALIPER        134.71	Black

8E0615424F       1 	OS CALIPER        134.71   	Black

8E0615425E       2 	CARRIER            73.73 ea	Black

N91036902        4 	BOLT                1.75 ea

8E0615601R       2 	BRAKE DISC         43.80 ea

N90444601        4 	SCREW               0.30 ea
[I][B]
8A0609721AD      2 	B4 HANDBRAKECABLE  20.40 ea[/B][/I]*

Arround 500 pounds, not?

[Vollgas]

N91036902 Bolt

You need Bolts from the S2, the S4 V8 Bolts don´t fit.

[Jamo]

Quattro Corner!

[Lars Erik Johannesse]

some one know a internet shop where i can buy these parts for 300x22mm rear brakes ?

i have a list for parts from AutohausAZ i will order. But i can`t find all parts i need in the shop. i have find this parts ;

8E0615423 brake calipter left rear
8E0615424 brake calipter right rear'
8E0615601R brake disc Ø 300x22

Then i need all other parts
8E0615425B CARRIER Silver
or
8E0615425E CARRIER Black
N91036902 Bolt
4B3698451 brake pads
8D0615611B brake shield
8D0615612C brake shield
N90444601 skrew
8A0609721AD handbrake cabel

or i will need to buy it on a local audi parts dealer ?

[s2avant]

The PCD of the TT disc is 5x100. They need to have the holes elongated to fit 5x112. You also need to alter the profile of the centre chamfer as it doesn't fit with the S2 hub. I had mine done by an engineering firm so they were accurate but even them I didn't like the play in the disc hence moving up to 300mm and then 330mm.

Ben

[M_GORDON]

I used B5 S4 carriers and calipers with machined TT discs for the 256mm setup.

Ben

Machined?

[Joris]

Really interesting thread! I've been looking quite a while for a decent upgrade. With 323mm drilled S8 discs in front, yellowstuffs and porsche 996 calipers, I think this will do just fine at the back of the sedan. Thnx for the clear overview on the previous page.

[goodall]

thanks

[s2avant]

I used B5 S4 carriers and calipers with machined TT discs for the 256mm setup.

Ben

[goodall]

when you had the 256mm on the rear what carrier did you use?

my brakes on the 90 all need overhauled so im thinking using my current front disc's on the rear and fit 276 grooved with green stuff to the front
im going the sleeper look so i want keep my 15" rims

[M_GORDON]

I don't *think* the B5 S4 rears will fit... disc offset is all wrong.

If you can't afford the B7 S4 conversion on your Avant (as per this 8E0 thread) then its maybe best you just refresh the factory setup. Discs are cheap even from Audi and refurbished calipers are available on exchange basis from good parts dealers. Make sure you request correct caliper for your car though - the B4 Avant has different caliper from B3 Coupe.
Paul

Thank you Paul!
And the brakes of an UrS4?

[S2central.net]

I don't *think* the B5 S4 rears will fit... disc offset is all wrong.

If you can't afford the B7 S4 conversion on your Avant (as per this 8E0 thread) then its maybe best you just refresh the factory setup. Discs are cheap even from Audi and refurbished calipers are available on exchange basis from good parts dealers. Make sure you request correct caliper for your car though - the B4 Avant has different caliper from B3 Coupe.

Paul