OEM brake upgrade for 3.0T?

[kingDL]

Hello,

I just bought a 2009 A6 3.0T Avant.

I am going to tune this car soon, but I am feeling that the OEM front brakes doesn't really cut it and I don't think a swap of pads will be enough. Recently did the Q5 Brembo swap on my A4 B7 and it has amazing brakes now, so I'm looking for something similar. The problem seems to be that there isn't a lot of people doing brake upgrades to their A6's(at least compared to the A4 community), so I can't find any writeups about it. Maybe I am not searching good enough. I have found out some stuff, but I need assistance to find out what fits or not. Can anyone help?

1. I read that A8 brakes should work on the A6 4F/C6 straight bolt on. Is this true or will it affect ET? There is an A8 setup that has 360mm discs and 2-pot floating calipers. This is a very cheap upgrade, the calipers can be bought for about $100 each new.

2. Some combination of RS4/RS6 calipoers/discs seem also to be bolt on? But Im unsure what part numbers. Does anyone know? A german ebay seller has been offering a kit like this for the A6 for a long time:
http://www.ebay.de/itm/Audi-RS6-Brem...tf-rzkk7kpwsIA

I know that there is StopTech and Brembo GT kits for this car, but they are like $4000. If I source OEM parts on the junkyard, I can find a pair of RS6 calipers for $5-600.

any input on bigger front brakes for this car is appreciated. I would prefferebly not want to use discs larger than 365.

[ApexRex]

There is a Porsche brake upgrade that the pre facelift cars were doing, don't know if it works on the C6.5, 2009-2011. I think they were off of the Cayenne. 17Z or something like that? It's been a while since I looked.


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[Greenster]

No one at the dealer knows? I'm sure a tuner would know.

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[2010A6]

There is a Porsche brake upgrade that the pre facelift cars were doing, don't know if it works on the C6.5, 2009-2011. I think they were off of the Cayenne. 17Z or something like that? It's been a while since I looked.


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I heard that route does require a custom bracket to be made though


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[NASAudi]

An S6 OE brake swap is where its at. 385mm brakes. I did it to my 3.0t.

NASAudi

[kingDL]

An S6 OE brake swap is where its at. 385mm brakes. I did it to my 3.0t.

NASAudi

Too big--- that requires at least 20" rims, no? I need to use winter tires on this car and they are insanely expensive in anything larger than 18".

[NASAudi]

19's

NASAudi

[Jeremyboukaia]

These are 17z off a Touareg they are 330 mm Volvo rotors. These bolt on but need the caliper lugs shaved alittle


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[SinCityA6]

Why do you feel there’s a need for replacing your brakes? The 3.0 come standard with 347 mm front desk and 330 mm in the rear. What type of driving are you planning on doing that would require changing your brakes?
Unless you’re taking your car to the track on a regular basis or participating in an autocross, changing out your brakes for something different it is overkill in my opinion! That is unless you want to have bigger brakes for looks! Upgrading your current set up with a different rotors from ECS or Adam’s rotors and adding Akebono euro ceramic pads and stainless steel brake lines will resolve all of your concerns regarding the brakes being underpowered for the car.


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[kingDL]

Why do you feel there’s a need for replacing your brakes? The 3.0 come standard with 347 mm front desk and 330 mm in the rear. What type of driving are you planning on doing that would require changing your brakes?
Unless you’re taking your car to the track on a regular basis or participating in an autocross, changing out your brakes for something different it is overkill in my opinion! That is unless you want to have bigger brakes for looks! Upgrading your current set up with a different rotors from ECS or Adam’s rotors and adding Akebono euro ceramic pads and stainless steel brake lines will resolve all of your concerns regarding the brakes being underpowered for the car.

Let's take that mindset and reverse it somewhat: Why does the RS6 have 8-pot brembo calipers in front? It hardly weights any more than my 3.0T. I'm quite sure that the 347mm 1-pot brakes would stop the RS6 too, maybe with even smaller discs, say 321mm.

I have an aggresive driving style and I want brakes that I can depend on even when the speed is twice the legal limit! I know a caliper with more pots will give me what I am looking for, and if I can do an OEM upgrade it will be cheap too.

[juniorcruzer]

put a decent pad on this car, and you would be surprised at how well it stops. I have an aggressive driving style myself, and not once have I ever thought about upgrading to a big brake kit when street driving. Now if you are talking track, that is a whole different story.

Jon

[kingDL]

put a decent pad on this car, and you would be surprised at how well it stops. I have an aggressive driving style myself, and not once have I ever thought about upgrading to a big brake kit when street driving. Now if you are talking track, that is a whole different story.

Jon

Yeah but say you could spend another extra $400 to make the brakes even more effective. Would you do it?

EDIT: From what I understand it could be possible to use A8 brakes in front. The discs needs to be replaced also soon. So the extra cost over the 347mm oem setup would be the larger 360 discs, but they can be found at about the same price. The pads are also the same price. A set of brand new 2-pot A8 calipers is about $220. The OEM brake lines will propably work but I would change these into a setup of steelbraded ones, so maybe another $100.

So $320 extra to make the brakes more effective than just a pad swap. Even if they don't get much better, $320 is not alot of money.

[PreciseD]

Why does the RS6 have 8-pot brembo calipers in front?

Probably becasue that car is a lot faster.......

[juniorcruzer]

Yeah but say you could spend another extra $400 to make the brakes even more effective. Would you do it?

EDIT: From what I understand it could be possible to use A8 brakes in front. The discs needs to be replaced also soon. So the extra cost over the 347mm oem setup would be the larger 360 discs, but they can be found at about the same price. The pads are also the same price. A set of brand new 2-pot A8 calipers is about $220. The OEM brake lines will propably work but I would change these into a setup of steelbraded ones, so maybe another $100.

So $320 extra to make the brakes more effective than just a pad swap. Even if they don't get much better, $320 is not alot of money.

I would buy a slotted set of stock size rotors, and a good set of brake pads. Maybe also do stainless brake lines, little better peddle feel on the street and track. If you plan to track it, then upgraded brake fluid as well.

Jon

[kneel]

S6 Calipers with spindles

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[kingDL]

Hello,

after much searching around I have now found out 2 things:

1. There is an OEM Audi brake option which is called 1LL, which is only fitted to armoured A6's but is standard on many Audi A8 and VW Phaeton. This is bolt on 360x34mm discs with 2-pot calipers.

2. When I searched around I realized that both the calipers and the carries on the A6 are the same as on the S4 B6/B7. The only thing that differs is the discs which are 347x30mm instead of the S4's 345x30mm. That leads me to think that the Q5 calipers can be used on the A6 C6/4F also. I recently just did that mod on my A4 B7 so maybe I could just swap the calipers and pads from it.

EDIT: If you are not familiar with the Q5 brake mod; it's 4-pot fixed brembo calipers made in alu.

we will see what happens.

[Flad.Solo.View]

few bolt-on options from my top list:

1) Audi Q5 Brembo 4-pot calipers
347mm OEM Audi A6 C6 rotors

2) Brembo BM5/17Z
Mercedes A 230 421 08 12 (Ate 24.0132-0153.1) 330x32 rotors

3) Brembo 18Z
rotors:
Mercedes A 221 421 16 12 07
Mercedes A 221 421 11 12
Mercedes A 221 421 16 12

you only need to enlarge the center bore of Mercedes rotors from 67 to 68mm

if you need some help with part numbers etc.. PM me;)

[kingDL]

few bolt-on options from my top list:

1) Audi Q5 Brembo 4-pot calipers
347mm OEM Audi A6 C6 rotors

I'm gonna go with this option since I have the calipers already, I checked the brake lines and compared with the A4 B7 ones. The difference is only 5mm so maybe the custom steel braided lines I had made for the A4 will fit the A6 too.

Pairing this with Redstuff pads and Zimmerman sport rotors(drilled) all around. I will get back with pictures and result.

BTW: is it necessary to put the electric parking brake in service mode?

[Flad.Solo.View]

I'm gonna go with this option since I have the calipers already, I checked the brake lines and compared with the A4 B7 ones. The difference is only 5mm so maybe the custom steel braided lines I had made for the A4 will fit the A6 too.

Pairing this with Redstuff pads and Zimmerman sport rotors(drilled) all around. I will get back with pictures and result.

BTW: is it necessary to put the electric parking brake in service mode?

you don't need to do anything with parcing brake since you gonna upgrade front ones;)

[kingDL]

you don't need to do anything with parcing brake since you gonna upgrade front ones;)

Haha yes but I am going to replace the rear discs and pads too.

[Flad.Solo.View]

Haha yes but I am going to replace the rear discs and pads too.

oh, then yes)
its easy to do!
i made it few month ago https://www.drive2.ru/l/474148997389353104/ (use google/chrome translate if you are interested to read;))

[gabitza121]

Too big--- that requires at least 20" rims, no? I need to use winter tires on this car and they are insanely expensive in anything larger than 18".

19' rims you need minimum but you can go whit some 18'.
All rims r18 from a6 c7 it goes whit this setup of s6.
I have this brakes on my 3.0tdi and someone who I know whot same setup of s6 brakes it runns on 18th inches rims from a6 c7 4g.

[kingDL]

Should have posted this earlier but I have fixed the brakes on my car.

This was bolt on with no issues at all, I had steel brake lines custom made for these calipers to my previous car, and A4 B7. They fit nicely on the A6 C6 also. Could be that the OEM A6 C6 brake lines will work also, but I'm not sure.

I am using Zimmerman Sport rotors, I know the drilling they come with is mostly a gimmick but they are supposed to have better quality steel in them compared to the standard version. Pads are Redstuff.

The brakes are better than before and has a nice pedal feeling. But it should be noted that I had OEM pads before, so not sure how much the pads alone affect the performance. Considerable weight saving also!

Definatley an upgrade worth doing, the extra cost is just the calipers, which I paid $300 for.

A picture: https://imgur.com/a/RnLRQXy

[corrado-correr]

Hey kingDL can you say exactly what you ended up using to fit the Q5 calipers?

Is it just the calipers and brake lines form this kit: https://www.ecstuning.com/b-ecs-part...14366ecs03kt2/

[kingDL]

Hey kingDL can you say exactly what you ended up using to fit the Q5 calipers?

Is it just the calipers and brake lines form this kit: https://www.ecstuning.com/b-ecs-part...14366ecs03kt2/

Hello,

Nothing but the calipers themselves, it's a direct fit. Maybe the brake lines, but thats a big maybe, the OEM lines might work.

This is assuming that you have the 347x30 OEM brake setup, cars with other setups might have different hubs(?).

[Kem]

What size rotors does the ROW TDI SQ5 use? Here in the USA they are 380x36. How does that work with a 347x30 oem rotor?

Hello,

Nothing but the calipers themselves, it's a direct fit. Maybe the brake lines, but thats a big maybe, the OEM lines might work.

This is assuming that you have the 347x30 OEM brake setup, cars with other setups might have different hubs(?).

[B. Rock]

Isn't 347x30 the standard size for the C6's? If nothing else, those calipers look fantastic on the front of the car.

[kingDL]

What size rotors does the ROW TDI SQ5 use? Here in the USA they are 380x36. How does that work with a 347x30 oem rotor?

The Q5 brake mod does not refer to the SQ5 but the Q5 3.0 TFSI - the SQ5 has another brake setup, I think it has floating calipers with dual pistons. The Q5 3.0T has 345x30 rotors.

These calipers can be found on other audi models also - the ones I bought came of an A6 3.0 TDI -16.

Isn't 347x30 the standard size for the C6's? If nothing else, those calipers look fantastic on the front of the car.

There is several different front brake setup's for the C6, depends on what engine/trim level the car has.

I choosed to paint the calipers black - but if you like more attention they would propably look great in another color. It has a large space for text or something also.

[NJAUDI1]

Will the Q5 calipers work with the prestige 18inch wheel?

[NJAUDI1]

Hello,

Nothing but the calipers themselves, it's a direct fit. Maybe the brake lines, but thats a big maybe, the OEM lines might work.

This is assuming that you have the 347x30 OEM brake setup, cars with other setups might have different hubs(?).

If you have 3.0t you will need to replace brake lines with q5 ones. Other then that it is a direct bolt on.

[alexdell]

So I have the Macan calipers that I never ended up using on my old B8.5 S4. I'm thinking of installing it on my C6.5 3.0T avant (MY2009). I know the Macan is the same exact calipers as the Q5 (345x30mm 4-pot). Since the OEM calipers are 347x30mm (single pot), do I need to change the rotors as well? Also, based on what I read above, I need to replace the brake lines to the Q5 ones as well and everything else is a direct swap? Thanks for your help.

Alex

[NJAUDI1]

So I have the Macan calipers that I never ended up using on my old B8.5 S4. I'm thinking of installing it on my C6.5 3.0T avant (MY2009). I know the Macan is the same exact calipers as the Q5 (345x30mm 4-pot). Since the OEM calipers are 347x30mm (single pot), do I need to change the rotors as well? Also, based on what I read above, I need to replace the brake lines to the Q5 ones as well and everything else is a direct swap? Thanks for your help.

Alex

If the same as The q5 brembo 4 pots then only have to change the brake lines. The 347mm c6 rotors work fine. You can upgrade them if you want, but size wise they work fine with the q5 calipers.

[DOBERMAN@UA]

Hi,
I have a6c6 with 347mm front rotors, upgraded with q5 calipers, works perfectly. Now I do want to save some kilos on brake rotors, but two peace rotors are only 345mm, will it fit my set up?

[dluxxx]

Hi,
I have a6c6 with 347mm front rotors, upgraded with q5 calipers, works perfectly. Now I do want to save some kilos on brake rotors, but two peace rotors are only 345mm, will it fit my set up?

what year q5 calipers did you guys use??

so just to get things straight... its a direct bolt on (no modifications) except for brake lines

[DOBERMAN@UA]

8R0615108G and 8R0615107G. You need only brake lines. Easy to do, night and day difference

[kingDL]

Will the Q5 calipers work with the prestige 18inch wheel?

Sorry for late answer but I think they even would work with 17". I can confirm or deny this when I'm putting on my winter wheels, if we ever get any snow this winter. ^^

Are you sure about needing other brake lines? I havent measured but the A6 OEM one seemed to be about the same length as the steel ones I am using now.

Also,, is 2 -piece rotors really worth that crazy extra cost? :P

[DOBERMAN@UA]

For sure you will need new brake lines because q5 calipers have different connections. And yes q5 calipers will fit some 17 inch rims. I even saw 6 pot brembo calipers with 350mm brake disks fits 17 inch rims, but it depends on geometry of rims. For this size of brakes I would recommend at list 18 inch rims, during hot weather and hard braking you will need space for cooling down brake. In 17 inch rims there is no space at all. Even in winter calipers will clean rims and all dust would be on pads, it will cause excessive wear on pads
Two piece rotors abut 2,5 kg lighter then stock 347mm rotor it increases handling dramatically. The same effect as forged rims

[alexdell]

So my indy shop tried installing the Macan/Q5 Brembo calipers w/ a new set of ECS rotors (345x30) which were the ones for the B8 S4/Q5. Although the 345mm diameter works, the depth/height of the rotor hat seems to be 1/2” shorter than the stock 347mm rotor for the C6.5 A6. Basically the rotor was rubbing against the front of the inside caliper due to the narrower height of the rotor hat. I just ordered a set of the 347mm OEM size to see if it will work. I’m assuming the 2mm width difference should not be an issue clearing the 345mm calipers. Here’s a pic of the difference of the hat height as a reference.

[DOBERMAN@UA]

345 30 rotors doesn't fit q5 calliper on c6?

[alexdell]

345 30 rotors doesn't fit q5 calliper on c6?

It’s not the caliper fitment but the height of the rotor hat. So a stock C6 A6 rotor w/ the Q5/Macan caliper should work. As you can see from my pic above, the height of the c6 rotors are taller than the S4/Q5 rotors. It’s probably hard to tell as both rotors were flipped upside down to show the height difference. Here’s an animated gif since I can’t upload the video.