Audi RS7 Rotor and brake pad thickness

[Serpex13]

I cant find it anywhere. Does someone mind telling me what these numbers are for the front and rear?? Thanks

[rabbitdog]

This thread has the details:-

Rs7 brake rotors and pads need replacement at 33k
https://www.audizine.com/forum/showthread.php?t=778392

[Serpex13]

This thread has the details:-

Rs7 brake rotors and pads need replacement at 33k
https://www.audizine.com/forum/showthread.php?t=778392

Found that thread for the rotor thickness thanks! It doesnt say about the brake pad thickness

[need2blower]

Found that thread for the rotor thickness thanks! It doesnt say about the brake pad thickness

Deleted my previous post to specify...

Assuming these are for iron discs - brembo specs the backing plate + pad material as 16.8mm

[Serpex13]

Deleted my previous post to specify...

Assuming these are for iron discs - brembo specs the backing plate + pad material as 16.8mm

Ok thanks. I just now need to figure out what the backing plate thickness is haha. And these are for Brembo specs

[need2blower]

Ok thanks. I just now need to figure out what the backing plate thickness is haha. And these are for Brembo specs

If their drawing is to scale, which it should be - The backing plate is 6.10mm and the friction material is 10.7mm. This is just for the front by the way, rear drawings show...

Total thickness = 17.4mm, backing plate = 5.4mm, friction material = 12mm.

[Serpex13]

If their drawing is to scale, which it should be - The backing plate is 6.10mm and the friction material is 10.7mm. This is just for the front by the way, rear drawings show...

Total thickness = 17.4mm, backing plate = 5.4mm, friction material = 12mm.

Cools thanks for the info! One last question. Does it say what thickness is considered time to change? I’m buying a car with 7mm thickness all around and will clarify as I assumed they just measured the friction material

[need2blower]

Cools thanks for the info! One last question. Does it say what thickness is considered time to change? I’m buying a car with 7mm thickness all around and will clarify as I assumed they just measured the friction material

It doesn't give that info - the hole for the wear sensor is not even drawn on the friction material so I cant even use my imaging software to estimate. If you'd like to get the service tag from the trunk of the vehicle (near the spare) and PM a picture of it to me, that's likely something I can look up in the factory service manual.

The rotor thickness is what I would be worried about as they are big money, pads are cheap...

[Serpex13]

It doesn't give that info - the hole for the wear sensor is not even drawn on the friction material so I cant even use my imaging software to estimate. If you'd like to get the service tag from the trunk of the vehicle (near the spare) and PM a picture of it to me, that's likely something I can look up in the factory service manual.

The rotor thickness is what I would be worried about as they are big money, pads are cheap...

I will shoot you a pm when I get the car! The rotor thickness is 35.7 on both fronts and 21.7 on both rears so I am good there.

[Valpo A7]

A quick Google check said that states with vehicle inspection requirements showed the min thickness is 2/32nds of an inch which is roughly 1.6mm. I think the Audi wear sensor will be wiped out before that amount. I want to say they trigger at about 3mm.

[Serpex13]

A quick Google check said that states with vehicle inspection requirements showed the min thickness is 2/32nds of an inch which is roughly 1.6mm. I think the Audi wear sensor will be wiped out before that amount. I want to say they trigger at about 3mm.

Thanks!

[blackout85]

I will shoot you a pm when I get the car! The rotor thickness is 35.7 on both fronts and 21.7 on both rears so I am good there.

What rotor thickness is considered time to change?

I'm typical dealer fashion, I brought my RS7 in for warranty work (fuel door actuator died) and they happened to tell me my rear pads were 4mm and rotors had grooves. No sensor has gone off at 4mm (assuming I believe those scoundrels) and so maybe 3mm is correct for pad wear sensor.


But I'm thinking if the rotor thickness is adequate, that I can machine them true again prior to replacing the pads. A cheaper process. I am aware that machining removes material as well, but if still within the limit of safe and practical, I dont mind doing that as an intermediate step.

Thanks

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[Serpex13]

What rotor thickness is considered time to change?

I'm typical dealer fashion, I brought my RS7 in for warranty work (fuel door actuator died) and they happened to tell me my rear pads were 4mm and rotors had grooves. No sensor has gone off at 4mm (assuming I believe those scoundrels) and so maybe 3mm is correct for pad wear sensor.


But I'm thinking if the rotor thickness is adequate, that I can machine them true again prior to replacing the pads. A cheaper process. I am aware that machining removes material as well, but if still within the limit of safe and practical, I dont mind doing that as an intermediate step.

Thanks

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Front rotors come 36mm new and you should discard them at 34.4.

Rear rotors come 21.9 new and discord at 20.4.

Still haven’t fully discovered what the pad thicknesses are yet

[blackout85]

Thank you good sir. Where did you find that info? For future reference.

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[Serpex13]

Thank you good sir. Where did you find that info? For future reference.

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In the 2nd post of this thread, there is a link to another audizine thread that has come good info. Side question: how do you like you exhuast? I’m debating akkrapovic or milltek

[blackout85]

Thanks. I was driving when I went through the thread this morning so didn't have time to spend looking at that link. It's on the to do list tho. Thanks...

As for miltek, can't say enough good about it. I was in that same dilemma. I have had akra in the past and love them. You won't beat the quality of the titanium but from a pure sound perspective, I'm extremely happy with the miltek and so is everyone that has heard it. It rreeeally wakes it up. The akra would as well no doubt. But at the time I didn't justify the extra cost when for the difference I did the ecu/TCU tune, some SRM parts and had a bunch of cosmetic stuff done.

You won't be disappointed either way. If budget allows the akra is a better quality exhaust, but doesn't sound twice as good to justify the price difference of roughly that.

Lemme know what you do!

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[Serpex13]

Thanks. I was driving when I went through the thread this morning so didn't have time to spend looking at that link. It's on the to do list tho. Thanks...

As for miltek, can't say enough good about it. I was in that same dilemma. I have had akra in the past and love them. You won't beat the quality of the titanium but from a pure sound perspective, I'm extremely happy with the miltek and so is everyone that has heard it. It rreeeally wakes it up. The akra would as well no doubt. But at the time I didn't justify the extra cost when for the difference I did the ecu/TCU tune, some SRM parts and had a bunch of cosmetic stuff done.

You won't be disappointed either way. If budget allows the akra is a better quality exhaust, but doesn't sound twice as good to justify the price difference of roughly that.

Lemme know what you do!

Sent from my SM-G960W using Tapatalk

Just got my rs7 and had an akra on my s6. Tough choices!!

[blackout85]

Just got my rs7 and had an akra on my s6. Tough choices!!

Hahaha these are good problems to have my friend! Go with your gut lol. You know the power of Akra!

I'm also thinking of Akra for my other toy. I bought it with an exhaust that I know I can do better with. And akra always comes to mind... So I still find myself with the same tough choices haha

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[need2blower]

Managed to find the model code off of a 16' rs7...here's some numbers straight from the workshop manual - the rotors you're looking at are the "wave design" in the charts. I'll included the carbon discs in another post for future reference.

[blackout85]

Managed to find the model code off of a 16' rs7...here's some numbers straight from the workshop manual - the rotors you're looking at are the "wave design" in the charts. I'll included the carbon discs in another post for future reference.

Amazing... But I can't see the charts. Not sure if it's just me/my phone. Tried the AZ app and tapatalk tho.

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[need2blower]

Amazing... But I can't see the charts. Not sure if it's just me/my phone. Tried the AZ app and tapatalk tho.

Sent from my SM-G960W using Tapatalk

It's not you, it wont let me link from imgur. Fixing the post now :-)

[Serpex13]

Managed to find the model code off of a 16' rs7...here's some numbers straight from the workshop manual - the rotors you're looking at are the "wave design" in the charts. I'll included the carbon discs in another post for future reference.

Thanks! Makes me feel better about my pads being 7mm all around

[blackout85]

Managed to find the model code off of a 16' rs7...here's some numbers straight from the workshop manual - the rotors you're looking at are the "wave design" in the charts. I'll included the carbon discs in another post for future reference.

Great thank you!

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[need2blower]

Pads are the same spec for carbon rotors but there are a few different ways to check the rotors. Looks like you can even weigh them There is a special note to clean the carbon rotors before measuring them.











The manual does not specifically state the limits for the rear as it does for the front. It specifies to use the first flow chart I posted and the min thickness and weight should be stamped onto the brake hub.