Jgleadle

I am thinking of upgrading the front brakes on my 2007 A6 avant 3.2l to those found on the v8 sedan. Has anyone done this b4? Any idea whats involved?

MylesPH1

..if that's the only difference, I can't imagine the difference in performance would be that great - a change to more aggressive brake pads designed for higher operating temps would be just as effective.

If the calipers are bigger, that's probably worth looking into - but at that point, why not go for the S6 brakes?

Jgleadle

any info on the S6 brakes? I am only aware that v8 have larger diameter rotors. what i am trying to do is find a solution to the 20k rotor/pad intervals.

MylesPH1

..so I don't think that will change the rate of wear.

I just started looking at brake options myself, so if I find anything relevant I'll post it here..

senna60_94

347mm vs 321mm for fronts & 330mm vs 302mm for rears.
For complete conversion I think u'll need discs+pads+calipers+carriers. The killer is the rear caliper as it has the electric parking brake as well. It could be done as European-spec 3.2 w/S-Line+ package have the 4.2 brakes, but on balance I doubt u'll gain a lot as there'll be an increase in unsprung weight.

MylesPH1

I can't seem to get an answer on that. In theory, the 4.2 A6 should get the same brakes as the S4, given the speed and weight.

senna60_94

The calipers are different comparing the 4.2 & 3.2, as the part numbers aren't the same.
I don't think the S4 uses the same brakes as the A6 4.2. The brakes on the 4.2 is the same in design & construction as the 3.2, only bigger.

Jgleadle

thank you, please post any info you find relating to the s6 brakes as an upgrade

ACSGP

The loss of unsprung weight has many benefits, including better ride.