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D2 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc.

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  #1  
Old 21st July 2020, 09:50 PM
Audifan Audifan is offline
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I've gave it some thought and decided to go with C5 RS6 front caliper and discs since it'll be easier for me to mount the calipers. And for the rears I'm going to go with C5 RS6 rear brakes instead of trying to fit 4 piston calipers from a Boxster and custom install a hydraulic e-brake or try to custom install an additional mechanical parking brake setup.

This upgrade is something that I will eventually do and as of right now it looks like I won't be able to get around to piecing it together till next year. So I'm just looking to get as much information about it now.
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Old 22nd July 2020, 11:19 AM
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Conan_the_Librarian Conan_the_Librarian is offline
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The only issues you will have with the C5 RS6 rears is the Handbrake cable. You will need the cables from a LWB D2 A8. They are pretty rare. Maybe Audi heritage?
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Old 22nd July 2020, 04:26 PM
Audifan Audifan is offline
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Quote:
Originally Posted by Conan_the_Librarian View Post
The only issues you will have with the C5 RS6 rears is the Handbrake cable. You will need the cables from a LWB D2 A8. They are pretty rare. Maybe Audi heritage?
Good to know. Thanks for the info

Anyone have the part number for LWB D2 handbrake cables?

Does the LWB VW Phaeton have a mechanical e-brake or is it electrical?

What about the very early model year D3 LWB e-brake?
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Old 22nd July 2020, 07:34 PM
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steamship steamship is offline
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Anyone have the part number for LWB D2 handbrake cables?
4D0609721N (left) and 4D0609722M (right).
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Old 22nd July 2020, 09:22 PM
Audifan Audifan is offline
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4D0609721N (left) and 4D0609722M (right).
Thanks. Good thing I'm not in a hurry on this and have some time to find them.

Another question. Why are the C5 RS6 discs so expensive as they are not 2 piece rotors so why the high price?

Last edited by Audifan; 22nd July 2020 at 09:25 PM.
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Old 22nd July 2020, 09:45 PM
MikkiJayne MikkiJayne is offline
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They are 2-piece rotors, just staked together rather than bolted like the RS4.

Weights from memory:

RS4 - 5.5Kg
RS6 - 6.5Kg
A8 - 14Kg!!
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Old 22nd July 2020, 10:03 PM
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Interesting.

Those weights are for the front rotors? Either way that's a huge weight savings between the A8 and RS6 rotors. The B7 RS4 rotors have a very low rotor hat offset vs. the C5 RS6 rotors correct? So the RS6 rotors will be easier to deal with then the B7 RS4 rotors?

Is there a difference between the front B7 RS4 calipers and the front C5 RS6 calipers?

Last edited by Audifan; 22nd July 2020 at 10:09 PM.
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Old 23rd July 2020, 08:48 AM
HPsauce HPsauce is offline
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Quote:
Originally Posted by MikkiJayne View Post
Weights from memory:

RS4 - 5.5Kg
RS6 - 6.5Kg
A8 - 14Kg!!
Referring back to earlier comments does the increased mass of the A8 versions improve heat dissipation so reduce brake fade and other issues?
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